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Need help please!!!with my 02 monte carlo

  #1  
Old 05-13-2019, 09:31 AM
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Join Date: May 2019
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Default 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
 
  #2  
Old 05-13-2019, 12:34 PM
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Originally Posted by Anthony Hamilton View Post
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.
 
  #3  
Old 05-13-2019, 12:40 PM
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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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