engine misses reel bad - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 10-03-2005, 01:13 AM   #1
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Default engine misses reel bad

i got a problem with my bonneville ya start it up abd it sputters and misses evern if u let it sit it does it but if you let it miss and drive it it comes out of it in bout 2 minutes and i have no throttel response at all ya hit the gas and it wants to die its a 1990 bonneville nothing speical bone stock 3800 i replaced the ingition modugal and coil pack and the computer but it still does it if anyone can help me id be thankful
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Old 10-03-2005, 11:00 AM   #2
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have you also done the cheaper and easier things like check and/or replace your spark plugs and spark plug wires?
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Old 10-03-2005, 11:07 AM   #3
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Two things could also be possibilities:

Vacuum leak
Weak MAF sensor
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Old 10-03-2005, 12:36 PM   #4
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Quote:
Originally Posted by jwikoff99
Two things could also be possibilities:

Vacuum leak
Weak MAF sensor
I agree, these will be 2 very important things to check on the Vin C 3800 as the Idle and everything inbetween is very dependant on the MAF functioning as it should with no vacume leaks

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Old 10-03-2005, 04:53 PM   #5
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Default idle

Spark plugs, clean IAC, wires, fuel injector cleaner in tank and see where you are.
start with the basics.
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Old 10-03-2005, 05:28 PM   #6
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i have gave it a complete tune up and replaced the iac maf and crank sensor and it still does it
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