Question about Toyota RAV4

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Butterfly valves The Butterfly Throttle Valve is sticking on my 99 RAV4 and needs cleaning...not sure how to do that?

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  • 39 Answers

Throttle body cleanre. Follow the instructions on the can.

Posted on Nov 22, 2013

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Posted on Jan 02, 2017

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SOURCE: falls on it's face when

Slimsoul, a bad fuel pressure regulator would cause a problem similar to this. You may already know this but a fuel pressure regulator kinda works backwards from the way you would think. When your car is at idle it produces the most amount of vacuum which power things like brakes. As your RPM's increase your vacuum drops. When a fuel pressure regulator recieves 0 vacuum it fully opens and allows the most amount fuel to flow through. So, you mash on the gas from idle and the car stumbles from lack of fuel. A common cause of this is because the regulator diaphram has a hole in it, which causes it to open slowly. There is a very simple test for this that, yes, even you can try at home. I'm assuming your corvette is a C4 (84-96). Open the hood, stand on the passengers side, and stare towards the back of the plenum just in front of the distributor. Now look underneath the upper plenum, and attatched to the lower manifold at an approximate 45 deg angle is a round piece that kinda resembles a top hat. This is your regulator. There should be a hard black plastic vacuum line attatched to the regulator. Now for the tricky part, unplug it and crank the car. If the regulator is in fact the problem, this should at least improve if not eliminate your problem. If it does not, my next step would be to check your fuel pressure with a fuel pressure gauge available at Autozone for around $40. A TPI motor needs at least 40 psi to operate properly. Back to the regulator, if it is in fact the problem your going to have to replace the diaphram in the regulator which is somewhat of a pain. You have to pull off the throttle body and upper plenum to get to it. Additionally the FPR is secured with special security torx bits, I believe its a T5. The plenum runner gaskets and throttle body gaskets will need to be replaced if they're original. If you're not somewhat handy I would suggest taking it to a shop to do the job.

Posted on Oct 27, 2008

  • 55 Answers

SOURCE: 1990 1.6 16v megane

Normally when you clean the throttle body you have to erase the auto adaptiveds or in other terms program values in the injection computer a with a diagnostic tool like the one Renault uses, I presume the engine installed on your car is a K4M ***

Posted on Apr 22, 2010

  • 496 Answers

SOURCE: 2000 honda odyssey throttle sticks

See if there are any "pending trouble codes" in the car's computer. Major auto parts stores will read your codes out for free. This may be a transmission clutch problem and not a throttle problem at all.

Posted on Feb 25, 2011

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Get a can of spray carburetor cleaner and spray the shaft that holds the butterfly valve. Clean the springs too.

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Is not so difficult. Just remove the flex hose ( induction pipe ), remove the two small hoses feeding water the stepper motor which is under throttle,by just stick in the hoses hole a screw not to allow water to leak out. remove the vacuum hose which is on the top of the throttle housing. The throttle body is ready to get removed by loosing the four long bolts. After having in your hands the body,just go to a washing point and using a carburetor cleaner clean it.

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I own a 2000 chev impala. Car engine would race when running and when idling. Computer scan showed we needed a new EGR valve. Replaced the valve sut still have the same engine racing problem. ...


TRY THROTTLE POSITION SENSOR AND O2 SENSOR. mAKE SURE THE BUTTERFLY IN THE MASS AIRFLOW INTAKE IS NOT STICKING. CLEAN IT WITH CARB CLEANER.
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My 2003 Ford Escapes gas pedel sticks when you try to take off.


The most common reason for this is a buildup around the butterfly valve in the throttle body. Under the hood, find the intake hose that runs from the air cleaner box to the intake of the engine. Remove the hose from the throttle body.

On the inside of the throttle body, you will see the butterfly valve which opens when you press the gas pedal. Clean the throttle body with a suitable cleaner such as Throttle Body Cleaner, which can be found at your local parts store. An old toothbrush and rags work well for cleaning the valve and behind the valve. Dry everything up and reassemble.

Other reasons could be sticking linkages at the throttle body that actuate the butterfly valve, or something as simple as your floor mat catching the pedal when depressed.

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Hello! Fail safe mode is when the vehicle's computer detects a serious problem an allows you to "limp" off the road or highway safely.

Fail safe mode on a Jaguar is mainly caused by a dirty and gummed up throttle body. The throttle body on your auto has a protective coating, so you can not use just any cleaner. It requires a throttle body cleaner that states "safe to use with a protective coating". The butterfly valve in the throttle body will actually "stick out". This causes fail safe mode to kick in reducing the amount of power your engine can produce.

Also check the plugs on your ECM (computer) and make sure they are all seated properly.


Guru...............saailer

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THROTTLE STICKS HAS HAPPENED A COUPLE OF


Have you tried cleaning the throttle body. Use throttle body friendly cleaner as it has a special coating that you do not want to damage it. Clean the sutt out real good where the butterfly valve is, inside and outside.

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Sounds like your throttle body may be dirty. Take off the tube to your throttle body. Right there you should be able to see your butterfly. Open the butterfly, is it all brown/black? Needs to be cleaned. Your butterfly is more then likely sticking. Get some carb cleaner and a used toothbrush. Open butterfly and spray all around in there. Let is soak up for a few minutes and then start cleaning it away. When you see it all silverish, it's clean. Give it a try.

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