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-   -   Need help please!!!with my 02 monte carlo (https://montecarloforum.com/forum/new-member-area-4/need-help-please-my-02-monte-carlo-60787/)

Anthony Hamilton 05-13-2019 09:31 AM
Need help please!!!with my 02 monte carlo
 
Starts and runs fine and then may get 4 or 5 miles down road and loses power and will barely idle and then after 20 secs engine revs up and goes back to normal then it's fine and then may do it again in another 4 or 5 miles. Also makes sucking noise at air box when happening.please help me

drivernumber3 05-13-2019 12:34 PM
Originally Posted by Anthony Hamilton (Post 717403)
Starts and runs fine and then may get 4 or 5 miles down road and loses power and will barely idle and then after 20 secs engine revs up and goes back to normal then it's fine and then may do it again in another 4 or 5 miles. Also makes sucking noise at air box when happening.please help me
Sounds like a Vacuum leak some place. Check your larger hose lines that maybe on the engine manifold. I could be just loose and needs reattached.

wht02monte 05-13-2019 12:40 PM
It does sound like a vacuum leak however, check the IAC valve and the MAF sensor...

"Sucking sound" makes me believe the IAC tho..


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