Camry :: 2009 - Vibrates When At Idle / How To Clean Throttle Body And IAC Valve
Aug 17, 2015
I have a 2009 Camry which has the well known very bad vibration at idle when in drive at a light. My Ultragauge shows the RPM are very low when it vibrates. Sometimes it drops to around 425-450 rpm when at a stop light in drive (automatic car). Then it sometimes moves up to around 625-675 rpm and that is when the vibration completely disappears and it is nice and smooth. This issue is intermittent but happens everyday.
Most people think it is due to a bad engine mount and spend money doing that and get no results.
I have done a lot of research and feel it is due to a dirty throttle body and IAC valve and want to test my theory. I will post results once I do the job. What is the easiest and most thorough way to clean both?
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2006 Honda CRV, throttle by wire. How can you get the throttle plate open to clean the throttle body etc.
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About, one month ago my car shut off while driving(pretty scary at the time). I pulled of the road and attempted to start it again. Everything looked good there, but as I was making my way home from work it started to act funny. It would not acknowledge me depressing the accelerator. When I got home, I ate supper, then went to have a look.
The car would turn on, but not acknowledge me pressing the accelerator at all, It did however go up to 30 mph at a snails pace as if it was coasting down a hill. I plugged in my code reader, and it read that the Throttle Body Valve was stuck open. I took it off and tore into to it a bit. I noticed the gears inside the TB itself were corroded and the butterfly valve was locked up.
I replaced the part, and tried to turn my car on with the new TB. All the dash lights are in working order, however upon turning the ignition to crank the engine, the whole car system shuts down. No lights no nothing, besides the car door open sound. The car will remain like this regardless of the key position until I have reset the batter(take off the terminals and put them back on) to which the process repeats itself.
The code reader says no codes are stored because I obviously reset the battery. So now am at a standstill.I believe the old TB froze up, because I had to run in through 3 ft standing water during a storm, and then deployed shortly after(I'm in the service) for a few months while letting the car sit.
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I need to pull my throttle body so I can give it a proper clean, but Haynes says that I shouldn't use a wire brush because that will damage the "special coating" on the bore and butterfly plate. It says just to use a rag and solvent.
The crud on mine looks like it will need more than a rag, so I was thinking about a toothbrush rather than a wire brush - do you reckon that'll be OK?
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I have a 2004 Ford F150 4x4 with 170,000 miles. its running a little rough so I thought I would clean the throttle body. do you clean it on the truck or remove it?
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I'm usually over in the EX forum but today was working on my brothers 1998 F150 - V8 4.6L. Had the EGR code P0401 and due to FTE I found the problem took the throttle body off and found it was definitely plugged. One of the bolts was really loose and came off way to easily. Didn't realize until cleaning why... Now I drilled 8 studs out of my aluminum EX heads but this one has me pondering how I'm going to clamp this thing down and center a bit..
1st pic - ports WOW - guessing this was the problem ...
2nd pic - bigger issue ...
3rd pic - the ports cleaned up ...
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Having problems with a ECM and throttle body for 2010 Corolla S? My corolla will idle rough and the throttle body will shut the car down to where it is inoperable. It throws codes and shuts the VVT down. The car currently has 56k miles on it and has been to Toyota 3 times in 3 months.
The first time they say they replaced the ECM, I really don't think so. 24 hours after we picked the car up it shut down again. The second time we brought it back in they said the brake light bulb caused the throttle body to shut down.
It had to go back again this week after it shut down again in traffic when it was idling. Toyota said the throttle body had to re-learn the idle again from when the ECM was supposedly replaced.
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I have a 2004 V6 LE with about 135k miles. I cleaned the throttle body two weeks ago, just because I hadn't ever done it. It wasn't too dirty. Before the cleaning, it idled at < 1k revs. Now, when I start the engine cold, it revs at around 1500, sometimes higher. It goes back to normal after the engine warms up to operating temperature.
Also, I hear a very slight high-pitched whining (maybe hissing?) noise when I accelerate. The noise is more prominent when the engine is cold. I checked for vacuum leaks but couldn't find any.
It feels like I'm depressing the gas pedal a little bit when I have it in drive or reverse, and it wants to pull harder than usual. When I bring the car to a stop with light brake pressure, as it drops into first gear, the car gives a slight tug forward, again, as if the gas pedal is depressed. I mention this to show that it's not just an issue with the rpm at startup.
I suspect that the issue lies with the throttle position sensor, which I may have jostled when I moved the throttle valve. The method I used when cleaning was, I first tried opening the valve by hand with the ignition off, but the resistance was much higher than I had anticipated. So I did the key-in method by turning the ignition to ON and putting a brick on the gas pedal. There was a high-pitched whine coming from somewhere in the engine bay when the key was ON, which I had not noticed before; I wonder if that is normal.
This seems to be a rather common issue after cleaning the throttle body cleaning, but there doesn't seem to be any consensus solution besides to wait it out.
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2002 Camry XLE.
I cleaned my throttle body today. Since the throttle plate moves by a motor, in order to keep it open, I turned the key to ON and held the gas pedal down by using some weight.
After I put everything back, the idle was high 2000+, then stays at 1300 to 1400 range. I drove about 10 miles and it is still the same. When stopped at a light in drive, the idle is still 1000
Did I mess up the e-throttle or the throttle position sensor? (Since I used a weight to hold the gas pedal down, I am worried now).
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2002 V6 Camry 145,000 miles, cleaned throttle body with TBC fluid, now starts runs for a few seconds and dies. In order to open the butterfly in cleaning I turned ign on and propped pedal down. After cleaning the car ran better but idle was high and a little erratic. I disconnected the neg batt for several hours, now it starts, but dies right away. In the cleaning process I had removed the throttle control sensor an reinstalled it. Can't keep it running long enough to adjust it.
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I recently cleaned the throttle body and now it surges up and down. Not really sure what to check next. 2002 toyota camry 4 cyl.
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I bought a 2009 f150 5.4 with 150000 miles on it. I have a slight hesitation from idle so I want to clean the throttle body. I found several for the older f150"s with the horizontal throttle body but this 2009 has a vertical mounted one. I change the air filter and cleaned the MAF but didn't change anything. My wife's ford 500 had this problem and cleaning the throttle body completely cured it.
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I brought my Prius, 128,000 miles, into the dealer with the check engine light on. Runs fine, and checked the gas cap. Toyota dealer said they need to replace 4 fuel injectors, replace oxygen sensor, and clean the throttle body. Check engine light needs to be off so I can pass emission test.
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VW Jetta SE 2.5L... Took my car to the dealer for a check engine light, the code came back P0106 which states I need my throttle valve cleaned and the dealer also said I need my brake vacuum pump replaced.. Do these go hand in hand? How should I proceed with the dealer? I have only 60,000 miles on my vehicle was there a recall on this issue? The dealer already updated the software in the technical bulletin.
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Car is 2000 Corolla with 60k miles that sometimes has a low idle (sometimes) when driven for the first 15 minutes early morning. Especially when accessories turn on, the RPM drop suddenly to 600 and recovers to 623 then back to 650rpm. After 15 minutes, everything works fine (normal 650 rpm)....my guess is the IAC Valve/throttle body needs cleaning.
What exactly do I need to tell me mechanic? That both the IAC Valve and throttle body needs to be clean? Also, after "cleaning it using a spray"....should he wait till the "spray dissipates"? What happens if it goes inside the engine?
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I have an '09 with 138k miles on it, I was wondering where the PCV Valve is on the 10th gen, and how to remove it to either replace or clean it?
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I cleaned my daughters throttle body on her 2005 prius. Sprayed it down on the vehicle trying to fix my P0505 code and now its idling high. Is there a learn procedure to reset this after service.
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So i recently bought a used 2003 camry le 4cyl with 72k miles on it. So it's still in good condition. Previously I had a 92 camry 4cyl which is run with throttle cable. The new generation camry's now are drive by wire or driven electronically. So I decided to check out the whole car and looked into the throttle body, the out side of the butterfly plate, and notice some thick black substance. It seems like grease or oil. I don't know if its there to lubricate the motor to run the plate or just oil.
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I cleaned my throttle body this afternoon.
My car started fairly easily, and I continued with running it to 4k RPM a few times, then took it for a ride. I floored it a few times, as suggested, to clear everything out.
Now, my 2004 J-VIN Camry is running around 1200 RPM, it was at about 650-675 before the cleaning. Is this normal? Do I need to d/c the battery to reset the ECU so the car can re-learn with a clean TB?
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I have a 2012 Camnry I4 and want to clean the throttle body.
Is this throtte the type that I can manualy open valve by hand without damage, or does the pedal need to be pushed to open, to prevent computer or throttle timing issues?
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I have 2011 f150 5.0 with 38,000 miles and the throttle body seized up tight.
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