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2001 Chevy Blazer engine ligth

Tiny
FAST_BLUE_CAR
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 91,000 MILES
My engine light is flashing when im driving at speeds of 60 + mph?
Wednesday, July 22nd, 2009 AT 9:37 PM

8 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
If thats happening then a fault code must be set, bring your vehicle to autozone for a free computer scan, bring the codes back to me for diagnosis.
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Wednesday, July 22nd, 2009 AT 10:24 PM
Tiny
FAST_BLUE_CAR
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  • 7 POSTS
The code is p0304
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Thursday, July 23rd, 2009 AT 4:07 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Ok, that is cylinder four misfire, start by checking spark plugs, specifically number four cylinder, but if your gonna change it you might as well change them all, check the wires, that cylinder wire could be arcing against the block too. You want to feel the wire, do like a little bending of the wire to see if there is actually a bad corrosion inside the center of the wire. Get back to me with your findings.
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Thursday, July 23rd, 2009 AT 9:21 PM
Tiny
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  • 7 POSTS
I had replaced all the spark plugs and wire, and cap ect.
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Thursday, July 23rd, 2009 AT 10:13 PM
Tiny
LEGITIMATE007
  • MECHANIC
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How does cylinder four spark plug look? Gas, oil on it?
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Thursday, July 23rd, 2009 AT 10:17 PM
Tiny
FAST_BLUE_CAR
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  • 7 POSTS
It's look's fine.
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Friday, July 24th, 2009 AT 12:55 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Next check./Clean the mass airflow sensor, and check/change crank position sensor
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Friday, July 24th, 2009 AT 10:24 PM
Tiny
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Everthing looks fine.
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Saturday, July 25th, 2009 AT 10:56 AM

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