high idle in neutral only

[jeffd]

my exploder has a high (1500 rpm) idel when cold or hot, but only in park or neutral, when in gear, its fine. Help.

 

[SteveVB]

Jeff

check for vacuum leaks, then I would check the TPS, and the IAC valve- although most likely the TPS.

 

[mike91]

I'm not exactly sure what the IAC valve that Steve is referring to, but it may be the same thing that I am going to mention. There is a valve that is attached to your upper intake manifold and is seen on the driver's side of the engine. It is around four - six inches long and is cylindrical in shape. I was idling high approx. 7 months ago and all I needed was to replace the gasket for the valve which mates it to the manifold.

 

[Ru Dawg]

IAC=

Idle Air Control

 

[jeffd]

I wen tot dis-assemble my air intake hose to clean my mas sensor, and found I had not pushed together my connector. After I did this, it runs fine. Thanks for all the help.