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1993 GMC Suburban Fuel Compression Leak

Tiny
ADAMANTADAM
  • MEMBER
  • 1993 GMC SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 142,000 MILES
When I took it to get it smogged, they told me I have a fuel compression leak and could not pass smog. I checked from the inlet up to the engine compartment and eveything looked good. I know it can be anywhere along the system, but is the a "common problem" area that I might check first, or is there a "handy-dandy" way of finding the leak? Thanks for you help.
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Monday, January 11th, 2010 AT 12:41 PM

2 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check the fuel pressure yourself and a fuel pressure leakdown and see if its leaking down.

If it was external youd smell gas.
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Monday, January 11th, 2010 AT 6:37 PM
Tiny
ADAMANTADAM
  • MEMBER
  • 3 POSTS
Thank you very much for the insite. I will research the fuel pressure leakdown, I don't smell gas, so maybe that's a good thing, :-). I'll let you know how it goes, thanks again.
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Tuesday, January 12th, 2010 AT 6:59 PM

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