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Van runs at ahigh idle even when drivingsome times

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Checked the vacuum lines sounds like a vacuum leek the computer detects high oxygen so gives more gas also can be throttle poison sensor

Posted on Jan 09, 2013

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Corsa lite 1.4i has ahigh and low revs sometimes Why Corsa lite 1.4i has a high and low idling speed?


It might be the idle air valve is sticking or one of the sensors is intermittently providing false information.

Jun 08, 2016 | Cars & Trucks

1 Answer

95yj 2.5 new IAC newTPS new TBI gasket still have ahigh idle speed 3500rpm .what to do


1- see that the throttle body flap is closed at idle, ie properly adjusted. if someone played with the adjustment then the iac will close to compensate but it won't be enough. proper adjustment for the flap is to turn the screw back until it disconnects from the flap and then turn it in 1/2 turn after it contacts the flap again.
2- pinch the vacuum booster hose while it is running; you may have a torn booster membrane.
3- stuck pcv valve- pinch off it as well and see if normal idle returns.
4- the iac is not being controlled by the computer; maybe a harness or computer problem.
expose the throttle body and with your finger close off the iac intake port; if the idle falls drastically or the vehicle stalls, then you can be sure that the problem is with the iac or its control.

Mar 21, 2013 | Cars & Trucks

1 Answer

Why does Van die when you turn the steering wheel?


Engine stall or RPM fluctuates at idle.

This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control

Sep 24, 2012 | 1991 GMC Safari

1 Answer

Fast idle astro van


Check the base plate gasket under the throttle body, some time the gasket start to leak, and will cause a high idle, if possible with engine running get some water and pore it at the base of the throttle bode, you will hear a suction sound, that's the gasket, replace it.

Jul 14, 2010 | 1995 Chevrolet Astro

2 Answers

The van stalls without notice at times when ready


This sounds like a classic case of either a dirty/faulty IAC (Idle Air Control) motor or a sticking EGR valve. If you can prevent it from stalling by keeping your fot on the gas slightly and it always restarts right away and runs good when restarted, I'd suspect the IAC first. If it "chugs"when stopping and will run rough even with a little (not a lot) of gas pedal and/or it runs rough when restarted, I'd suspect the EGR.

Dec 04, 2009 | 2001 Dodge Caravan

1 Answer

Van has to sit overnight after long idle, in order to start.


See if the vents on your gas cap is clogged up. The gas cap could cause the fuel tank not to vent properly, causing fuel issues

Apr 26, 2009 | 1999 GMC Savana

1 Answer

Car run rught an cut of sme times wile driving


Check your acceerator linkage. The cablemay need replacing.

Nov 25, 2008 | 2000 Ford Focus

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