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1993 S-10 Blazer - Black Smoke, Runs VERY Rough.

Tiny
JGOLF58
  • MEMBER
  • 1993 CHEVROLET TRAILBLAZER
1993 S-10 Blazer, 4x4, 126000 miles, 4.3L Vortec
I left the car running overnight (long story). The next morning I put more gas in and started it. A huge cloud of black smoke and moist residue (the residue left a mark on the ground) from the tail pipe. Engine will run but it is VERY rough and when you put it in gear it feels like it has little to no power.
I am a novice when it comes to engines!
Did I ruin this car?
P.S. - Imade a donation on Friday 4/6/2007.
jgolf58
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Monday, April 9th, 2007 AT 7:53 AM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,603 POSTS
Sorry for the late responce. Remove the egr valve and check if the vavle is closed, if not replace the valve. Next they had big problems with the fuel pressure regulator, the diafram ruptures and allows gas to enter the intake manifold. Last check the fuel pressure to see what pressure it is at. Please let me know, I will work with you untill fixed.

Ken
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Tuesday, April 17th, 2007 AT 3:35 PM
Tiny
MCFERRANCE
  • MEMBER
  • 100 POSTS
I believe that these also have an EGR controller that is knowk to go bad. It has the vacuum lines and an electrical connector to it.
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Tuesday, April 17th, 2007 AT 9:54 PM

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