idle promblems

#1

99 malibu 6 cylinder 3.1 100000 miles started to lope at idle . then later
started to do it while driving. check engine light works but does not
appear with this promblem. so i eliminated the possibilty of a sensor. i
also know that any regulating eguipment [like the idle control]would cause
an emmission promblem and the check engine light would come on. any ideas.
thanks

#2

juan21 wrote:

Quote:

99 malibu 6 cylinder 3.1 100000 miles started to lope at idle . then later
started to do it while driving. check engine light works but does not
appear with this promblem. so i eliminated the possibilty of a sensor. i
also know that any regulating eguipment [like the idle control]would cause
an emmission promblem and the check engine light would come on. any ideas.
thanks

Did you check for a vacuum leak? That can cause a lope without setting

any codes.

#3

i did look for vacuum leaks. i used a mechanics stethoscope to listen but
did not hear any . i also tryed letting propane seep around the engine and
did not get any type of rev up .

#4

juan21 wrote:

Quote:

i did look for vacuum leaks. i used a mechanics stethoscope to listen but
did not hear any . i also tryed letting propane seep around the engine and
did not get any type of rev up .

If it was just at idle I would suggest maybe a dirty throttle body, but

doing it above idle I'm not sure.

--
Cy Welch
89 Camaro RS 5.0 TBI
98 Passport
03 Malibu

#5

i guess i will just have to try one thing at a time. thanks for your help

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idle promblems

Chevrolet Malibu Chevrolet Malibu Discussions (alt.autos.chevrolet.malibu)

idle promblems - 01-01-2006 , 11:55 PM

Re: idle promblems - 01-02-2006 , 01:40 AM

Re: idle promblems - 01-04-2006 , 11:36 PM

Re: idle promblems - 01-05-2006 , 11:35 AM

Re: idle promblems - 01-05-2006 , 11:20 PM