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1995 Pontiac Grand Am cylinders

Tiny
MDTESTER
  • MEMBER
  • 1995 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 94,000 MILES
I changed the fuel pump and filter in my car about 2 weeks ago put it back together and drove it for about a week and it was fine. Then about a week ago I was driving down the road and it just lost power and got loud, so I pulled over and looked under it and the exhaust was red hot from front to back so I took it in and they changed the catilac converter and it still got red hot. So they pulled the plugs and changed them. It quieted it down some but it was still missing and only got red right by the catilac converter. So they checked the coil pack and that was good but cylinders 2 and 3 are not getting any spark. So they checked he ignition module and that is fine. We are stumped( thinking it could be wiring some where but nt sure. Do you have any suggestions? The coil housing and the timing also checked out fine.
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Monday, August 30th, 2010 AT 11:27 AM

8 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
I'm assuming this is a Quad4 engine and if it is what you need to do is replace the white coil housing. On that engine it acts as a distributor cap and cracks internally. I have seen it many times.
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Monday, August 30th, 2010 AT 12:19 PM
Tiny
MDTESTER
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  • 11 POSTS
I called the shop and they said the coil pack and housing was good, any more ideas?
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Tuesday, August 31st, 2010 AT 11:51 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
If they are so good why haven't they been able to fix it? I say change the housing.
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Tuesday, August 31st, 2010 AT 11:58 AM
Tiny
MDTESTER
  • MEMBER
  • 11 POSTS
I will give them a call again. Thanks for the info. I am at a loss and the thing is it just happened all of a sudden.
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Tuesday, August 31st, 2010 AT 1:00 PM
Tiny
MDTESTER
  • MEMBER
  • 11 POSTS
Just got off the phone with them again an they said they would give it a try. I told them that you were pretty sure that is what it is.
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Tuesday, August 31st, 2010 AT 1:05 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
Let us know how it works out.
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Tuesday, August 31st, 2010 AT 1:18 PM
Tiny
MDTESTER
  • MEMBER
  • 11 POSTS
Thanks for all your help. This morning I received a call telling me my car was fixed. When I picked it up, the guy just shook his head and says, yeah we were just saying. How often does are customer come and tell us whats wrong with there car. For all your help to me. They only charged me an hour labor. I guess what really made them shake there heads is I usually do all my own repairs on my vehicles and I am a Woman! Thanks again.
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Wednesday, September 1st, 2010 AT 10:07 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
I'm glad it worked out for you. This is not the first time I've seen this problem and I knew it wasn't going to be obvious. Feedback is appreciated.
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Thursday, September 2nd, 2010 AT 4:20 AM

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