94 Blazer S-10 runs rough/brakes fade/stalling

Tiny
AMARTIN
  • MEMBER
  • 1994 CHEVROLET TRAILBLAZER
I have a 94 Blazer S-10 4dr/4x4 4.3ltr. It has 145+k miles. Recently I have had the ehaust, catalytic conv to tail pipe replaced. The old cat con. Had rusted out and clogged ehaust. Next replaced alternantor. Next replaced Coil. Each one had failed in turn. Now truck runs rough even at idle. Sometimes brakes fade/fail at stop signs. Sometimes stalls at stops signs with loss of power to brakes. Exhaust seems to be rich and thicker than normal. I think it might be a vacuum leak. Loping doens't change much with PCV in or out. Vacuum is prevent at pcv but it lopes also.
Tuesday, November 21st, 2006 AT 4:22 AM

1 Reply

Tiny
GMX
  • MEMBER
  • 37 POSTS
The truck most likly has a piece of carbon stuck in the EGR valve, u would need to remove valve & clean, u should replace the gasket with the new updated gasket that has a screen in it these would prevent carbon from sticking valve ( parts plus would carry gasket or ur local parts store ) good luck
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Tuesday, November 21st, 2006 AT 10:46 PM

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