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need advice on how to adjust Idle speed ....

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Old 01-04-12, 02:00 PM
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johnblagg
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Default need advice on how to adjust Idle speed ....

Being new to actually working on anything newer than cars that date back to the 70s I could use some help now that I have most of the issues under control....

With every part I replace and get back into working shape she runs a bit better and driving down the road runs absolutly great now...but sitting in park in teh drive she is idleing to fast now and I think I probably need to adjust that back a bit .....How do I go about this?

I am still waiting for the egr modulator valve to replace my patched one and if that could cause a fast Idle then I might have to readjust back up a bit after replacing that part.

today I replaced the pcv valve and grommet and did little cleaning on the engine and transmission to get rid of built up old funk but I did not wash it down I used a flexable gripper tool with a paper towel held in the grippers and alternatly knocked some loose then wiped in down and a touch of pb blaster in the spots right on top of the tranny by the engine to get it off ....

Found a couple of minor oil leaks but I dont think they are much to worry about yet although I think one may be the rear main and I will be fixing that this spring when It is warm enough to work on her in the driveway .

She is idling just a bit too fast and when shifting into drive its rougher than is good for the transmission or drive train
Old 01-04-12, 02:05 PM
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johnblagg
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Im wondering if old tired o2 sensors could be the cause maybe ? I have one already but figured I would do them both at once so was waiting untill I had my collection of new parts together and could get several things finished at the same time.
Old 01-04-12, 04:22 PM
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PFB
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There is no idle speed adjustment as such.

Idle speed: should be 700 ±50 rpm, If the idle speed is not as specified, than check the IAC valve, air intake system, and the engine temperature/coolant sensor.
Old 01-04-12, 08:05 PM
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johnblagg
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thanks ..it is much higher than than and squeezing the iac vacuum hose does slow it down ...so most likley there
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