2012 toyota corolla idle problems. Dec 20, 2011 · 22 posts · Joined 2011. You can feel it in the seat and the steering wheel in the cabin. May 17, 2023 · J. The RPM jumps happen when in drive (D) and when I'm in standing in a stop sign or a red light, they range from 450 to 950RPM (sometimes 600 to Jun 6, 2009 · At idle, the engine stumbles a bit. 15 % of the time it's the. Nov 7, 2023 · Hello everyone, I did some searching but was unable to find an issue exactly like mine. The Corolla has always needed a little fluttering of the pedal in the morning to ramp up the rpms a little to get going. You did mention that the car is loud. Then when you hit the gas, the car sputters, for about 5-10 seconds (WOT), then it smooths out, and accelerates normally. Its a 1987 Corolla, 4ALC 1. Throttle pedal checks out with omhs check across the terminals per Toyota manual. From the beginning, there was an issue with the accelerator, mainly above speeds of 35 mph. Then with some further testing, the faults can be found and repaired. garyhooten. This dip in idle corrects itself after about 6 seconds Oct 11, 2020 · IAC Valve 04 Corolla. If your idle is hunting, you should apply vacuum through the vacuum line going to the booster and see if it stumbles. Nov 23, 2009 · It idles high (1500-2000 depending on the temp) when its cold out, but once it warms up, idle resets to about 500-800. No response with throttle pedal input,but the throttle body did operate in fail safe mode. 2k RPM, and after about 20-30 seconds of this idle speed, it will dip down to about 1,700-1,800 and repeatedly surge back to 2,2000 in an up-down, up-down fashion until the temperature gauge Jan 28, 2013 · '03 Toyota Corolla 1,4 VVT-i 4ZZ engine idle rpm Idle is factory set and cannot be adjusted, your best bet is checking for cracked hose pipework for air intake at idle,(not at problem under exceleration and driving) Any slight upset to the air /fuel ratio will be most prevelent at idle speeds. Oct 28, 2017 · The codes tells you which systems aren't functioning 100% (not what parts are bad). The gasket should be 15-20 dollars CAD ,the idle air can be had for 40-70 Cad depending on if you get oem or not. I replied to the "09 Corrolla 1. Thanks to The Old Mechanic in another forum post I may have a solution for a majority of you all. Oct 9, 2021 · 2013 Toyota Corolla LE A/C problem. 23499 posts · Joined 2012. - disapointed 2014 , Tamarac, FL, US. #4 · May 9, 2020. Nov 8, 2011 · The low idle failures are usually associated with the 2003 and 2004 through research with no real solution found. 21 % of the time it's the. Over the years of owning many Toyota’s, I have found high idle problems caused by leaking vacuum lines several times. It will go from almost dying to about 2,000 RPM or so, then drops, then rises. #47 · Dec 25, 2020. May 9, 2020 · 75aces. My 2010 Toyota Corolla S 5’s speed shakes at idle when I start it up after it has warmed up. The idle comes up after the engine is warm, but when it is really cold out the car will not start or idle by itself without help from the accelerator pedal to keep the engine running. 01 ES300 147k NEEDS TRANS WORK. You can speed it up by holding 3000 RPM for 30 seconds (once warm). The 2014 Toyota Corolla SOURCE: '03 Toyota Corolla 1,4 VVT-i 4ZZ engine idle rpm Idle is factory set and cannot be adjusted, your best bet is checking for cracked hose pipework for air intake at idle,(not at problem under exceleration and driving) Any slight upset to the air /fuel ratio will be most prevelent at idle speeds. #1 · Dec 20, 2011 (Edited) I have a 2003 Toyota Corolla le with 111,111 miles on it and it has an excessive vibration at idle in all gears. As long as you're under 2000 RPM and typically it will be at about 1700 when it's stone Oct 15, 2022 · The idle adjustment screw is located on the throttle body near where the throttle cables are attached. The speed control was set to 60mph over a stretch of empty interstate. Overall Reliability. Years 2000 to 2015 Air leaks are in intake manifold, air leaks in hoses and dusty in MAF ai Dec 1, 2021 · A Toyota Master Diagnostic Technician shares some common problems and issues with the 2009-2013 Toyota Corolla. I have to pull over and unplug my battery cable and the problem is gone Sep 7, 2016 · How to repair bad idle speed in Toyota Corolla VVT-i and how to fix error. Check hoses where the meet metal flanges on manifold intakes and any sharp bends in ppipes About this product. 6 liter engine. 8L that has a frustrating issue. Dec 8, 2019 · You can remove the IAC valve and test and clean it without breaking anything, but the screws holding it on are easy to strip. Jul 10, 2021 · By Vlad Samarin, Updated: July 10, 2021. 000, auto transmission, car well maintain, I am the first owner. The service manual says that the voltage after driving the car should be at no lower than 12. Check Engine Light. daves1994corrola and kacar. Took it out for a test drive and all was well. - Old Brigde , NJ, USA. Like has been mentioned, occasionally, near to stall and on rare occurrence, actually stall out. If it does stumble, then you're not looking for a vacuum leak. If it remains flat, then the O2 sensor is bad. Aug 14, 2014 · 1426 posts · Joined 2011. Following our research, we discovered some issues more common to Corolla models of various generations. It was idling about 600 rpm after it warmed up. Oct 13, 2019 · Joined Apr 8, 2017. The idle is 600 in drive and when really cold out idles that low in park or neutral. Subscribed. In my opinion there's a good chance its the gasket or the idle air valve gummed up . This is in an attempt to draw more fuel into the engine to compensate for the leak. amazon. it would go as low as 600 making my car Mar 10, 2021 · Been having the same problem, rough idle while in drive and brake pressed with A/C on. this also happens when I stop the car in a red light/ drive truth, it'll shake a lot and putting it in neutral Nov 9, 2016 · commando. The 2012 Toyota 4Runner has 1 problems reported for vibration at stop, idle. Aug 8, 2016 · 9. 8L 2ZR-FE. Worst 2012 Toyota Corolla Problems #1: Brakes Squeaking 2012 Corolla Average Cost to Fix: $800 Average Mileage: 12,000 mi. I haven't done any recent work on it and it's due for an oil change. Inactive-Merged-Check Engine Light Due to EVAP System. #1 · Mar 24, 2015 (Edited) Hello. This idle speed control motor is notorious for getting carbon buildup. 8 liter. It got worse and worse until the car would actually die. #36 · Mar 22, 2020. Pull the intake hose off the throttle body. 1) Intake Manifold gasket replaced to upgraded version from mechanic. I'm noticing that my car shakes from time to time. 1 post · Joined 2014. In park, not as rough, but still a little rough. Cost to Drive Cost to drive estimates for the 2012 Toyota Corolla L 4dr Sedan (1. Jun 27, 2019 · A lot of the mid- to late-'00s Toyotas have to relearn the idle after battery disconnect. The failure mileage was 1,000. Once the engine reaches normal operational temperature (needle half way), the rev limiter Jun 27, 2014 · SuperchargedMR2. May 18, 2024 · ABS (Anti-Lock Braking System) Warning. As well check your pressure sensors which are common causes of this sort of issue on the Toyota Corolla. Fuel Intake Issue: Your fuel injection pump or injectors might be clogged. Idle from 600-800 is very normal. The 2006 Toyota Corolla has 2 problems reported for low idle. Maximize. To read the trouble code from the engine control unit, you have to use an OBD2 scanner. Basically, from one stop to another, it went from running fine to surging. Hey guys!! This is a video showing you how to execute a relearn procedure in case you are experiencing rough or high idle issues. So I need some insight to trying to get my '89 running properly again. It sounds like one or more of the following: - vacuum-leak. We expect the 2024 Corolla will be more reliable than the average new car. After 35 min use, idles rough. For example, I may come to a stop light and notice it idling high. The Idle Speed Control Valve Assembly (#22270-0D010), a pivotal component within the Fuel Injection System of Toyota's engine-fuel parts, plays a critical role in managing the engine's speed during idle. Throttle body issue: Although in most Jan 20, 2019 · Vehicle starts up great. Learn More #2: A/C Not Working Properly 2012 Corolla Apr 25, 2021 · 2012 Corolla LE shaking. #1 · Oct 11, 2013. The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. At 750 RPM, the engine should be in Park or Neutral. #2 · Aug 14, 2014. A leak in any of these locations will cause your car to rough idle. Let the car idle and look at the engine and see if you feel hard vibrations. Once warmed up, the idle rpms drop to 900 - 1000 rpm. The procedure and specs are in the repair manual. . I have checked the coils, and they are within spec, the plugs, and plug wires are in good condition. 3-12. The car will drop RPMs while stopped at a light in drive. However, my temperature gauge never ever ever went to half way or even close! Feb 8, 2024 · the first issue you have is the same thing i am having in my 2022 le. Vacuum Leak. sometimes I can start the car and it will do ok. Corolla 4-cyl. Updated 01/30/13 updated 1/31/2013updated 02/11/15 updated 02/20/15. However, for the past three weeks or so it's been randomly stalling at red lights. For the last two weeks idles are rough when the engine if fully hot. 46 subscribers. I changed spark plugs, spark wires, cleaned throttle Sep 24, 2019 · I did a search of the forum and couldn't find the exact situation and my exact car described, so here goes. It goes away when you start to accelerate. The first and main issue is not starting. It almost didn't make it home. when blowing was 58 degrees while it is over 95 degrees in Florida. There is no mil, and all of the engine mounts are good. It handles most of the weight and torque. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher. RB The Mechanic assumes no Feb 12, 2012 · Common problem would be a leaky intake gasket - affects the 1ZZ-FE engines much more than the 2ZZ-GE in your XRS, but this is not uncommon on the 2005-2006 Corolla XRS to have idle surge. 4L 2AZ-FE which were the 2009-2010 Corolla XRS (U. Complaints of clicking sounds on this car are common, but usually people complain that it comes from the drive belt area which is caused by the tensioner or the VVT system. Most likely an intake-manifold leak after the throttle body. The Corolla models affected by the oil burning issue had the 2. I am able to turn the engine off and then start it right up again. These Corolla's idle are set at i believe 625rpm, so dropping to 500 or lower is very noticeable. The car seems to blow not cold but cool The most common reasons a Toyota Corolla has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. :thumbsup: 23 GR Corolla / 89 Supercharged White MR2 / 09 Corolla S TURBO CSM. It currently has 103,000 highway miles. It would be helpful if you posted a video of the problem. Hey everyone got a 01 corolla with 291,000 on the body and about 150,000 on the engine. Push the throttle lever (cable lever nearby) to open the gate. I think that the cpu is programmed to increase the idle rpm when the a/c and/or the head light is turned on. 12 people have reported this. Oct 11, 2013 · 933 posts · Joined 2010. 5,000 miles. The engine cranks but often will only chug and die shortly after. 94K views 10 years ago. The RPMs will drop to as low as 500. My A/C stopped blowing very coldl air. This light means there’s an issue with your anti-lock brakes. ), 2009-2012 Corolla XRS (Canada), and the 2009-2014 Matrix models equipped with the 2. more. As soon as the vehicle encountered a slight elevation in the road, the engine revved to over May 8, 2016 · Another common problem is the coolant sensor for the ECU. The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. revs up and down on idle. Oct 1, 2014 · Mechanic 1 said that the dealership has more experience with my specific car. May 3, 2011 · good day, my corolla has same problem. 8l rough idle - with a new twist" thread with my experience, basically these products, the best being blue devil, IMO, can work surprisingly well, but only temporarily. I'm looking at having the car transported 45 miles to . Twice now I noticed when I start the car in the morning the idle will be below 500 rpm for about 20 seconds. One quick test of fuel-pump is to whack the fuel-tank with rubber mallet to shake fuel-pump when the stumbling problem starts. Spray some TB cleaner in there and scrub it with a toothbrush (and wipe clean with a shop towel). Repair Procedure 1. Starting the car quickly and not allowing time for everything to kick in when the key is in the ignition Oct 12, 2022 · Toyota Corolla Shaking When Idle. All fluids are topped off and belts are new, though possibly on the loose side. When the engine is cold, the idle is around 1200-1800 rpm. One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. Idles very smoothly until it warms up. Yup, less than 1000 rpm is normal. 5 point anti tamper spline tool available on e bay about a fiver my question is what does little plastic tag inside iac metal bit do and what position do you put it on when reassembling. Mar 17, 2021 · I took the battery out of my 2005 LE to replace a headlight bulb and when I put the battery back in, it was idling about 150 to 200 rpm lower than normal. The range-topping 2012 Corolla S Sedan 4D starts at $8,137 today Oct 29, 2007 · that sounds more like the IAC valve on the intake just before the butterfly-valve there are two parts the top has a screw to adjust the idle you might want to bring it up some and the lower is supposed to have a diaphram that opens and closes, mine was frozen open so i filled it with thermo-silicon and put it back together(i only need the screw now) and it runs fine. Jun 22, 2019 · 3733 posts · Joined 2013. Other times the rpm will go to about 1800 then drop well below 1000 until it bogs out. Took it to the shop and they said the freon was low, but no leaks. Feb 12, 2005 · 1991 Corolla 4AFE Cold Start Problems. Starting from early 2000, there have been complaints about excessive oil consumption in different Toyota models. Mar 24, 2015 · 4 posts · Joined 2015. The most common cause of a Toyota Corolla’s rough idle is a vacuum leak, spark plug problem, or ignition coil issue. 17 Corolla iM CSM / 17 RAV4 XLE MGM / 06 Scion xB. Inspect the gate on the throttle body. See if it is all gummed up in there. You will probably find dried out hoses with cracks on the connected ends or where the hose is bent on an angle. If the misfire goes to cylinder 4, then your coils are failing. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Oct 7, 2014 · This repair is covered under the Toyota Comprehensive Warranty. I have been having an issue with a low idle for a few months now. How to adjust the idle on electronic throttle bodies. They cannot seem to figure the thing out. The 2012 Toyota Corolla has been Nov 26, 2021 · flomounier1 said: Hello all, I have an 18" Corolla LE CVT with 30k miles, for the last 6k miles or so, I've noticed while at red lights and in drive thru lines, while the car is in drive, the idle randomly dips down to 500rpm-ish and causes a noticeable shake (whether or not the AC is on). May 8, 2018 · Toyota idle relearn rest procedure products and tips listed belowPlease Shop and see all The Car Mans Favorite Products & Tools https://www. Remember positive lead of DVM to signal wire and negative lead to ground. After doing some research I found some were having success cleaning the throttle body and throttle plate. We bought a 2011 Corolla for my Mom in June 2011. Excessive Oil Use. 2017 Corolla SE 135K miles, plugs at 100k. Oct 13, 2019 · 3. One of the most common and most noticeable bad PCV valve symptoms is probably the check engine light on your dashboard. It would be a good idea to change both O2 sensors. Mar 16, 2015 · C. Some keep suggesting it is fine or normal to drop to 500-600rpms. Be mindful that an exhaust leak the size of a pin hole in this region can cause a rough idle. Sep 24, 2011 · Recently the 2002 Toyota Corolla started having issues with rough idling and poor running. 34 % of the time it's the. Feb 22, 2012 · My 2001 Corolla S 5 speed has 117k miles. 0. The 2012 Toyota Corolla has 14 NHTSA complaints for the vehicle speed control at 31,548 miles average. In Reverse, car is worse than drive. Another problem which might cause that code would be an exhaust leak between the engine and the oxygen sensor. EX: Trip the trouble codes. 4L 2AZ-FE. Apr 15, 2012 · New Member. The voltage of the battery, after bleed off, falls between 12. So Should you buy a Toyota Corolla? In this vi Nov 15, 2018 · If you look at photo #3, you can see dark spots at the 9-10 o'clock positions, and the 3-4 o'clock positions on either side of the pivot bar. it was cold in the beginning, turning warm within an hours time. Worn Piston Rings: This leads to excessive oil consumption and, if not caught in time, engine failure. This prediction is based on data from 2021, 2022 and 2023 models. I have a 2005 Corolla that was idling very rough this morning. Airbag Control Module Failure (2003-2004 Models Only): Many 2003-2004 Corolla owners have had their Jul 18, 2018 · It could be coming from that corner of the engine as well. I don't get a check engine Light so I don't think that will do me any good. Put some freon in and then. Show. First ever failure with a Toyota. Like. Feb 21, 2020 · Finally, on this website are the possible causes of your Toyota Corolla not keeping up when idle caused by an intake issue. Hey guys, I need some help. I have a '98 Corolla that at times (not all the time) will idle around 1600 rpm after it is warm, but not consistently. It has a hose clamp and can be removed with a screwdriver in a minute. A couple months I started having a rough idle. Then it settles around 800 rpm. We limped home at 25mph this morning. Smell of gas or exhaust indicates a leak in the exhaust system. I loose power and engine runs really rough. Dec 4, 2019 · Hello, I'm creating this thread to see recomendations about the issue with my Corolla 2005 CE Issue: When the car wams up the idle speed is too low 500 rpm at that rpms also vibrates. During which the engine feels and sounds rough. Apr 27, 2008 · 1987 Corolla idle surging problem. it'll start idle fine but then after a few minutes it'll will vibrate the whole car for a few seconds and then go back to normal. - EGR, cracked vacuum lines, and/or bad VSV. Oct 16, 2013 · AK Outlaw said: As the title says, I have a 2004 Toyota Corolla CE 1. So today I just replaced my IAC because I was getting a P0505 Code (Idle Air Control System). Mar 10, 2017 · Hook up a Digital voltmeter (DVM) to upstream O2 sensor and lets see how she is burning. As far as changing the speed when it's cold that is controlled by the computer. Jan 11, 2021 · Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. A 2005 Toyota Corolla S. Could also be caused by the idle "adjustment" that was done. Looks like when you push the clutch the car have issue to speed up to the normal idle Feb 27, 2023 · 1. You would just need a new gasket for it since coolant flows through part of it to warm it up. com/shop/j Jan 8, 2016 · 1. It's normal for most cars idle to fluctuate at idle as load changes from electrical need. Sep 1, 2009 · Cold Idle problem 2001 Corolla CE. Clean both the bore and plate of the throttle body and clean the carbon from the idle speed control motor. I've been doing some research on my All-Data computer, but I haven't started any of the diagnostics. It's in great shape and only has about 101,000 miles on it. Additionally, when I took my foot of the gas at highway speeds, the car would Mar 26, 2012 · Yesterday was colder, and the low idle wasn't as harsh but its still there. I forget the exact amount, but its not super important. It will drop below 600 for a second right at the point of stoping and then raise back up. #4 · Jun 27, 2014. Check hoses where the meet metal flanges on manifold Nov 20, 2016 · Your idle is much lower than mine. S. hello, i currently have a 2009 toyota corolla base automatic and what's going on is that when my rpms acting up on idle or coming to a complete stop. I am just wondering if anyone has had this problem with 2010 Toyota Corolla. I'll run to the next light and the idle will be fine. You don't have to worry about the oil burning Feb 21, 2021 · Leak: A leak in any of the hoses that conduct fuel and air to your vehicle’s engine could be the cause of rough idling. That's the large rubber hose from the air filter. Average failure mileage is 81,100 miles. - TOTALED. It sucks but there is no fix. My observation when the car is fully warned up is: a) Foot on Brake and gear on Drive, idle = about 600 rpm. 1. 2. The rpms drop from 900 to 500, and then 400, and then back up again. May 1, 2009 · Replace. #1 · Apr 15, 2014. Sep 14, 2018 · 1. The check engine light did not come on until about two weeks later. Dealer failed to duplicate this problem which is a very rough idle, ac on or off. 00 Camry 5S-FE 184k smoooth. Apr 15, 2012. Engine light comes on as well as VSC and traction control but the engine does not shut off. 1,300 miles. injector wiring. Replacing your piston rings should fix it. Well this winter I got the P0171 code during two separate cold snaps so I cleaned the MAF and replaced the faulty intake gasket. The idle speed can be reduced by turning the adjustment screw clockwise after locking the lock nut. Mar 30, 2012 · Very rough idle, ~400 RPM, 2005 Corolla. You didnt report if the idle gets better after warm-up. The idle air valve can also be cleaned and reused (videos on youtube). Spark Plugs. 0 %. 16 posts · Joined 2014. Rear oxygen sensor can cause emissions failure. coryfor Discussion starter. Average failure mileage is 7,500 miles. Also throttle body idle valve issue. The Toyota Corolla is not left out, with owners of different model The manufacturer was notified but provided no assistance. Dirty fuel injector: The fuel injector controls how much fuel is Dec 26, 2019 · With your Bluetooth scanner, monitor the O2 sensors. Because before the old part broke, the car pops (exhaust pops) and it is still good on the MPG with the overdrive turned on. Jun 17, 2013 · Early on it developed a low idle and vibration while stopped at a light. The mount that goes bad first is the passenger side. For the misfire, swap coil pack from cylinder 4 with 1 of the other 3. #5 · Jun 24, 2019. While sitting at a light it will drop down and shake and then go back up. ABS Wheel Speed Sensors May Wear Out and Set Codes at Higher Mileages. Dec 25, 2019 · Hi everyone, My 09 corolla 1. 8L 4cyl 5M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway Mar 22, 2013 · Started the car and after some sputtering, the idle was nice and smooth. So I got a Toyota (Corolla GLI, 70000 miles), it drives good, no major problems except for shaking and RPM jumps that you wouldn't expect from a 2012 Toyota (or any 2012 car for that matter). I have a 2015 Corolla S with the CVT and 92,000 miles. Dec 6, 2023 · Despite this, there is no perfect car. Used 2012 Toyota Corolla pricing starts at $7,571 for the Corolla L Sedan 4D, which had a starting MSRP of $16,890 when new. The 2012 Corolla S has the 1. This happens every time the engine is at idle. When the engine light shows up, there is a trouble code stored in the engine control module. With constant pressure on the gas pedal, speed would drop approx. The TPS can also be tested and adjusted. I have searched the forums and most cases seem to be a dirty MAF or a bad intake manifold gasket. 86. 10 posts · Joined 2015. About 30 miles after I cleaned the throttle body, I noticed some intermittent stalling, usually felt at idle, but not always. 95K subscribers. jawama Discussion starter. I am having some major idling problems. Remember, the rev limiter will be reduced to 7000 rpm and the cam switch over to high-performance at 6600 rpm will not happen when the engine is cold. cleaned the throttle body of carbon to smooth out rough idle Nov 30, 2008 · Corolla 99 idle problem. Sometimes when I stop the car the rpms go to 200 rpm and then up to 650 rpm. -very rough and slow idle as the engine climbs back up to idle speed. #3 · Feb 11, 2021. Oct 13, 2013 · 1989 Corolla 4AF Idle Surging / Dying at Idle. It gave once only trouble code: P0300, P0301, and P0303 (cylinder misfire) the same day and after the reset - no more. #1 · Mar 16, 2015. The speed should be set to around 30kph. Sometimes the vehicle is smoother when warm than other times. Get to work and report back. Battery voltage when the engine is running is approximately 14V, which is good. Car mileage 100. 3) Blipping the throttle causes the following: -induction hissing (during the blip) -silence/no ignition. It could come on for a variety of reasons, from a faulty speed sensor to low brake fluid to May 7, 2015 · Now the code-25 means your running lean. b) Foot on Brake and gear on Neutral, idle = about 700 rpm. - PCV. It would start, but with a rough idle. 5. The rough idle is normal because of the engine design. I have a 1998 Corolla. If mallet doesn't change anything, then troubleshoot all the other areas relating to fuel. 3) I have gone back and forth between the dealership and Mechanic 2 about ten times total. 200 rpm, then go back up. If the valve fails or has any issues it can cause the idle speed to be thrown off. It has a rough idle, but otherwise it drives normally. It has about 175,000 miles. * Warranty application is limited to correction of a problem based upon a customer's specific complaint. MrRyanbobb77. Here's how we remedied the problem by cleaning the Mass Airflow Se Dec 19, 2013 · My 2010 Corolla Auto does the same thing. 1,278 Posts. Apr 20, 2020 · 23,482 Posts. This causes a very annoying vibration Jul 13, 2016 · 2009 Toyota Corolla Rough idle problem. 8L is experiencing a few issues that all seem to be stemming from the engine receiving too much gas. It maintains the idle speed by controlling air intake, ensuring smooth operation of the vehicle when not in motion. If idle improves, then it's most likely mechanical issue with fuel-pump. Best way to test is to hook up a scanner and make sure coolant temp and reported temp are the same. OLD: Corolla 1- 96 4AFE, AE101 w/ 225k Miles orig. Jan 8, 2013 · 98 Corolla high idle at times. Symptoms include oil sludge buildup and low oil levels between oil changes. 312K views 4 years ago. motor, 129k trans. Feb 11, 2021 · G. 23771 posts · Joined 2009. Apr 11, 2014 · How to fix issues with bad idle speed VVT-i engine Toyota Corolla. it supposed to be at 800 rpms and when i put my car into drive or reverse, the rpms drops bellow normal range. also can I soak valve in carb cleaner;also I have read car has to relearn throttle setting and you have to turn ignition on and off in a sequence Jun 27, 2017 · The idle drop is below 500 rpms. When coming to a stop it it will be at 750 and then drop to 600 or so after 3 to 5 seconds like it is idling down. 2006 Toyota Matrix. From a stone cold start, it will idle between 2-2. I ordered the new part from Toyota for a brand new OEM control valve hoping that it would fix the problem. My 1991 Corolla is hard starting in temps below 45 degrees. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date. I have a 2010 corolla s 1. After doing that, it would run pretty well perfect everyday (its my commuter car). 5. Trust me i have been to the dealers many times and the clicking/clunk noise is coming from the torque converter 100 percent. After that the idle goes back to the normal cold speed of about 1100 rpms. In drive, car shakes and is rough. - stuck idle-valve. 8K. #1. Having said that, you've already replaced the IAC valve, which was likely damage by the first mechanic. 4) In trying to address the rough idle and sludgy acceleration, the dealership replaced the air fuel sensor and a seal on the mass air 14 people have reported this. The Old Mechanic said he recommended Chevron techeon Complete fuel system cleaner. It has been idling roughly at 300 rpm when started cold and at outside temp of 20 degrees or colder. It never stalled but occasionally vibrated. If its not it will cause hard starting and poor idle. I'll put it in neutral and the rpms jump to around 1700. They should be oscillating. Otherwise, just drive around until the idle settles. Anything above 550 mV is rich anything below 350mV is lean. 13 people have reported this. Toyota Corolla low idle, high idle, easily repaired. Irregular idle speed. Mar 18, 2009 · When it is cold, 2ZZ-GE idles at 2000 - 2100 rpm. I feel the shift at exact 8-10 mph. Lastly, I'm not so sure if 2000 RPMs at cold idle is that far off. yy sq dw ci xu qm ww ho di ci