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1989 Chevy Van uses lost of gas

Tiny
SHORELINE11
  • MEMBER
  • 1989 CHEVROLET VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I have a G20 Van and recently it just started to use lost of feul. I mean really heavy. 5 gallons for every 24 miles. No check engine light nothing. I did a tune up 8500 miles ago along with the o2 sensor and the TPS since the engine light was on back then.

HELP!
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Friday, February 22nd, 2008 AT 9:09 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the pressure regulator and the return line to the tank, pull the vacuum hose off the regulator, any fuel in there? If so replace it, pinch the return line does pressure increase? Get a test guage, autozone rents them out, when your done they refund all your rental fees.
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Friday, February 22nd, 2008 AT 9:22 AM

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