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Engine idles up 500rpms, then dies - 2000 Buick LeSabre

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Out of timing

Posted on Jul 16, 2009


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I replaced a throttlebody on a 2012vw tiguan and it only idles Will go up about 500rpms

then you didn't get all of the parts hooked up throttle cable no doubt is off .

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2002 nissan altima.stopped at stop light and engine quit.started right back but idled very low while in gear.cleaned throttlebody,now engine idle fluctuates from 500rpms to 2000rpms.has several...

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The car starts but idels at 2500 3000 rpm's and i replace tps,and check for ripped vacum hoses have seen none,i dont know what it could be

Sounds like the EGR valve and pdfe sensor this controls idle. (Also on the TPS make sure its turn counter clockwise one screw hole is slotted and will change idle speed responds. With it on the throttle body unloosen screws and move one way or the other listen to motor the motor should idle down or up abit then tighten. Idle speed for a 5.0 500rpms.)

Aug 09, 2010 | 1993 Ford Thunderbird

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Truck idles in park but drops to about 500rpms and lower if idling in drive and dies.

sounds like the idle air control vavle. when you put a load on the engine such as putting it in gear or using the ac or turning sharply, the iac is suppose to let more air in so the engine will idle up a little. if its stuck and you load the engine by pulling it in gear it will let the idle drop and possibly die.

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1989 toyota corolla rpm goes down than up

First thing to look for would be vacuum leaks. Make sure all your hoses are good and tight, and no cracks. With the engine running, wiggle them around and listen for a hissing. Then check all your intake bolts for tightness. You may have a leaking EGR valve, or a plugged PCV. Make sure your air filter is clean. Try those for a start, and let me know. Good luck.

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If your idle is going from 500rpms to 1000rpm's fluctuating at and idle your EGR valve is probably carbon up and needs cleaned or replace.

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