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98 caravan idles at 4500 rpm?

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jgarcia
New User

Dec 15, 2011, 12:41 PM

Post #1 of 6 (1359 views)
post icon 98 caravan idles at 4500 rpm? Sign In
I recently changed the head gasket and put everything back on and upon starting the engine it started right up but is now idling at 4500 rpm. Im not sure what to check or where to start now. Any reply would be helpful. It has the 3.3L and 250000 miles on it.


(This post was edited by jgarcia on Dec 15, 2011, 12:43 PM)


Mr.scotty
Enthusiast
Mr.scotty profile image

Dec 15, 2011, 1:25 PM

Post #2 of 6 (1336 views)
Re: 98 caravan idles at 4500 rpm? Sign In
Is the throttle plate closing all the way?
Is the throttle body clean?
The IAC valve might be stuck open or pening for some reason.
Just go over everything and double check your work.
Good luck and keep us posted.
--------------------------------------------------------

Your only as good as your tools!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 15, 2011, 5:00 PM

Post #3 of 6 (1325 views)
Re: 98 caravan idles at 4500 rpm? Sign In
Look for a major vacuum leak.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



jgarcia
New User

Dec 22, 2011, 5:15 PM

Post #4 of 6 (1282 views)
Re: 98 caravan idles at 4500 rpm? Sign In
I did find a slow leak in the "egr" tube coming off the intake manifold, fixed that and now is working. Thank you all who replied.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 22, 2011, 6:20 PM

Post #5 of 6 (1278 views)
Re: 98 caravan idles at 4500 rpm? Sign In
It couldn't have been too slow if it did all that............



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Mr.scotty
Enthusiast
Mr.scotty profile image

Dec 22, 2011, 10:31 PM

Post #6 of 6 (1273 views)
Re: 98 caravan idles at 4500 rpm? Sign In
Yeah I hear that..Crazy
--------------------------------------------------------

Your only as good as your tools!





 
 
 






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