1989 Chevrolet Astro 4.3L TBI 167,000

Tiny
TOWMAN
  • MEMBER
  • 1989 CHEVROLET TRUCK
I'm having a problem where sometimes the van runs great and at other times it misfires, backfires a little, loses all power and sometimes dies. I changed the distributor cap & rotor button. I had one place say fuel pump & another say throttle position sensor. I am at a loss and don't want to pay for a wild goose chase on what it is. The check engine light never comes on.
Monday, January 29th, 2007 AT 7:48 PM

1 Reply

Tiny
JEFTFIELDS
  • MEMBER
  • 74 POSTS
On the dist, iv run into were the dist, shaft bearings go bad and cause something like your having, to check this remove dist, cap and move roter back and forth for movment there should not be any.
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Monday, January 29th, 2007 AT 8:34 PM

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