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1982 GMC S15 computer

Tiny
JOHN BLAYLOCK
  • MEMBER
  • 1982 GMC S15
  • 4 CYL
  • 2WD
  • MANUAL
  • 153,000 MILES
Starts up great, but at above a scarey red line rev, or full blast! This is th 2.5 pontiac with a 300 rochester fuel inj. Throttle body. Is this possibly a computer reset if so how?
Tuesday, March 9th, 2010 AT 2:57 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
I would look for a vacuum leak. Disconnected hose or a cracked one.

Try flexing hoses and see if there are separations, cracks at connections etc.
A smoke machine could flush out a vacuum leak fairly easily.
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Tuesday, March 9th, 2010 AT 6:46 PM

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