SPONSORED LINKS

94 Grand Am 2.3 quad-4 SOHC vin. Code 3 180000 miles

Tiny
DARREN SCHULER
  • MEMBER
  • ALL OTHER MAKES ALL OTHER MODELS
Running on 1&2, 3&4 not. Have checked injectors and replaced one that was not completly closing(#4), all injectors spraying. Checked spark (#3) weak plug had 125000 ohms resistance, replaced all. Coils between 5000 & 6000 ohms (1-4)(2-3), no short to cover. Multi spark not as bright as I think maybe it should be but all equal. No unusual noise, power steering pump turning, exhaust manifold 1&2 heats up, 3&4 doesn't (first clue) plugs 3&4 very little soot, cylinder end of plug housing/ground staying silver, little discolorization on electrode(2nd Clue). It doesn't seem to shake quite as bad but still scratching my head. Whats next?
SPONSORED LINKS
Sunday, December 31st, 2006 AT 11:29 AM

4 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Ignition coil housing and boots are real common on this one.
Was this
answer
helpful?
Yes
No
Sunday, December 31st, 2006 AT 5:46 PM
Tiny
DARREN SCHULER
  • MEMBER
  • 2 POSTS
Just installed new coils and housing, no luck. Going to start over and recheck everything. More ideas? Is this the proper place to reply to suggestions?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 31st, 2006 AT 6:29 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Maybe check compression in the bad cylinders. Did you replace the boots for the plugs?
Was this
answer
helpful?
Yes
No
Sunday, December 31st, 2006 AT 11:45 PM
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
What is wrong with the car?
Please explain.
Was this
answer
helpful?
Yes
No
Monday, January 1st, 2007 AT 11:48 AM

Please login or register to post a reply.

Related Vin Number Content

VIEW MORE

Sponsored links