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1998 Chevy Blazer Lt exhaust smells like fuel runns rough

Tiny
JOHNNYSILVERWOLF
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 14,000 MILES
I just bought this 98 blazer ithard to crank runs rough lost of power and the exhaust smells of fuel when shut off you stillsee white smoke drifting from tail pipe any ideas well apprecaited
Saturday, November 26th, 2011 AT 2:30 AM

5 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Check compressions, replace plugs, if one or more are very black and sooty you will have a miss fire on the cylinder due to excessive fuel. (Leaking injector) faulty spark or low compression, is the coolant level low? If the plug looks a dirty rusty colour you may have a coolant leak into that cylinder, the white smoke is also a sign of coolant burning.
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Saturday, November 26th, 2011 AT 2:37 AM
Tiny
JOHNNYSILVERWOLF
  • MEMBER
  • 27 POSTS
No coolant lost it also uses alot of fuel will reply about plugs tomorrow could the O2 sensors be bad?
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Saturday, November 26th, 2011 AT 4:27 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Could be and also check for a faulty coolant sensor.
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Saturday, November 26th, 2011 AT 5:29 AM
Tiny
JOHNNYSILVERWOLF
  • MEMBER
  • 27 POSTS
Ok changed plugs wires cap button code says first random miss fire cleared then misfireing on cylinder 5 code cleared back to random missfire any ideas
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Wednesday, December 7th, 2011 AT 12:56 AM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
YOU NEED TO TEST FUEL PRESSURE, COMPRESSION, SPARK, ECT READING. AND INJECTOR PULSE WITH A NOID LIGHT.
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Wednesday, December 7th, 2011 AT 1:11 AM

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