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Black smoke

Tiny
JERRY ROGERS
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • RWD
  • AUTOMATIC
  • 3,150,000 MILES
My truck is putting out black smoke and I only took the spark plug wires off the distributor cap and it took me a while, but I think I have them in the right order what could the problem be?
Tuesday, September 13th, 2016 AT 6:25 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure with a gauge may be a regulator problem you will need an adapter for this so I do not know if auto parts have them or not to rent they do rent gauge. 9-11 psi.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Wednesday, September 14th, 2016 AT 7:15 AM

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