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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-04-2005, 11:20 AM   #11
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Quote:
Originally Posted by RareGMFan
Definitely sounds like it'* missing. If you have an AutoZone, or anything to that nature near you, they should be able to test it for you for free.
Don't count on this. I've seen bad units test good and good units test bad. Usually it'* bad units testing good, though. These testers only run BASIC routines. They don't test the entire module.
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Old 05-04-2005, 12:35 PM   #12
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Talk about hard decisions - son'* GA module tested good but gut said it was bad. $100 module and integrated cover makes it very difficult to check for spark. Went with the new module and fixed the problem (3800s I have spares for).
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Old 05-04-2005, 01:27 PM   #13
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Good news today, I had a month left on the coil. I got the new one and I'll put in tonoght and keep ya updated.

Pag - I was talking about printing from BC. I found your stuff later and it printed fine.
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Old 05-04-2005, 11:45 PM   #14
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Not the Coil.

Gonna start troubleshooting per the Service Manual.

Possible suspects:

Ign module, Spark plugs, Wires, Injector, Crank sensor
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Old 05-06-2005, 04:19 PM   #15
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Not the Ignition Module.

Injectors next.
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Old 05-06-2005, 08:18 PM   #16
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If its missing under loak its more than likely a bad plug or wire. Could also be a valve sticking.
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Old 05-06-2005, 08:31 PM   #17
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Aw please not a valve!

I'm at 279000 miles I need to hit 300K for bragging rights.

I'm gonna buy a long wire and one good plug and swap them out one at a time to see if one is bad. They're not that old maybe 6 months.
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Old 05-06-2005, 10:48 PM   #18
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Quote:
Originally Posted by KEOTOK
Aw please not a valve!

I'm at 279000 miles I need to hit 300K for bragging rights.

I'm gonna buy a long wire and one good plug and swap them out one at a time to see if one is bad. They're not that old maybe 6 months.
If it'* never had a timing chain replacement, I would bet that is the problem. Even with a tensioner, the valve timing can get seriously retarded if the chain is loose enough to hit the cover, even worse if it jumps a tooth.
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Old 05-06-2005, 11:16 PM   #19
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If going to pull plugs, run a compression test while you are at it.
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Old 05-07-2005, 01:03 AM   #20
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Not sure how to do that.
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