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1999 Chevy Silverado Loss of Power

Tiny
MANSFIELD
  • MEMBER
  • 1999 CHEVROLET SILVERADO
Engine Performance problem
1999 Chevy Silverado V8 Four Wheel Drive Automatic

My truck has started to sputter like it is losing power when im idleing and lasts for up to 30 seconds but when im driving it seems fine. Could this be a vaccum leak?
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Wednesday, July 23rd, 2008 AT 2:09 AM

5 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
It could be. Do you have a check engine light on.
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Wednesday, July 23rd, 2008 AT 8:02 AM
Tiny
MANSFIELD
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  • 2 POSTS
No it doesnt. Any more ideas? It dowsnt even do it all the time is what is so weird to me.
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Wednesday, July 23rd, 2008 AT 11:49 AM
Tiny
RHALL77
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Is your AC on when this happends
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Wednesday, July 23rd, 2008 AT 2:23 PM
Tiny
MANSFIELD
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Most of the time it is but I turned it off to see if it still did it and it did.
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Wednesday, July 23rd, 2008 AT 3:46 PM
Tiny
RHALL77
  • MECHANIC
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When it does it, disconnect you MAF sensor and see if it stops. This is located by your air cleaner. If not I would have it scanned and check your fuel trims. That will tell you if you have a vacuum leak.
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Thursday, July 24th, 2008 AT 7:31 AM

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