idle problem
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Joined: Aug 2007
Posts: 2
idle problem
I have had my 01 for a little over a year. latley the idle has been jumpin around and sometimes when I let off the gas the car will die. After running it for a while it starts hard and will sometimes die right after it starts. I have replaced the Idle motor after a suggestion from the auto parts store and the fuel filter still the same problem.
Monte Of The Month -- March 2007
Joined: Apr 2006
Posts: 5,264
From: Woodstock, Ontario, Canada
RE: idle problem
hey, welcome to the site 
could be a cat convertor issue as well
you could try running a can of seafoam through it, but most likely its a cat convertor issue
could be a cat convertor issue as well
you could try running a can of seafoam through it, but most likely its a cat convertor issue
RE: idle problem
Hi Kyle,
How many miles are on your Monte ? Has it been serviced regularly ? It's difficult online to guess your problem without doingtest.
The cat converter can clog & cause problems like you are having,
but it also maybe sensors + more.
If your Monte Carlo hasn't had a tune up lately,
It sounds like it is time for a major tune up including: spark plugs, spark plug wires, fuel injection service, clean the throttle bore, idle air passages and idle air control motor. Also replace the fuel filter and air filter.
How many miles are on your Monte ? Has it been serviced regularly ? It's difficult online to guess your problem without doingtest.
The cat converter can clog & cause problems like you are having,
but it also maybe sensors + more.
If your Monte Carlo hasn't had a tune up lately,
It sounds like it is time for a major tune up including: spark plugs, spark plug wires, fuel injection service, clean the throttle bore, idle air passages and idle air control motor. Also replace the fuel filter and air filter.
Good Luck on resolving your prob's.
`Space
`Space
Last edited by Taz; Apr 16, 2010 at 08:35 PM. Reason: Repaired coding issues from old forum
Joined: Oct 2006
Posts: 3,986
From: North Fond du Lac, WI
RE: idle problem
For some reason on the 6th Gen Monte Carlos some of the cat converters go bad. There is a 100,000 mile warranty on them so you could get that replaced. Another "just to check it out option" would be to remove the down pipe - 4 bolts - and just start it in your garage just to muffle the sound. See if it idles fine or at least better in the garage. If it does, then I would look to that as the problem.
Joined: Sep 2007
Posts: 84
From:
RE: idle problem
You are off to the right start I would have replaced the the same, Now it's time to look at the air induction. Clean the throtle body with some TB cleaner spray inside withe the butterfly open let it sit a couple minuites and reassemle should start but may be smokey at first, If that doesn't do it check and clean you Mass air flow sensor.
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