96 Century--replaced intake gaskets now it won't start!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-02-2010, 10:00 PM   #1
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Default 96 Century--replaced intake gaskets now it won't start!!

96 century 3.1. It had a bad leak thru lower intake gasket, but would still crank and run for a minute or two. Now I have replaced the valve cover gaskets and both upper and lower intake gaskets and the car won't start and is even backfiring a little. I am stumped.. it ran before but won't crank after many tries. Please help. Thanks
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Old 10-02-2010, 10:08 PM   #2
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you have toe firing order wrong
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Old 10-02-2010, 10:14 PM   #3
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Where can i see a diagram of the correct ignition coil arrangement? the coils are numbered. i'm not 100% sure they are right. its backfiring out the intake
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Old 10-02-2010, 10:17 PM   #4
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By the way...thanks for the reply STEALTH. my brother is buying a gxp too.
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Old 10-02-2010, 10:32 PM   #5
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I'm sure one of the resident gearheads will be in soon to chime in

I'm not 100% on the correct firing order
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Old 10-02-2010, 10:35 PM   #6
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I'm gonna go to the yard tomorrow and look at another one to see if it will help. thanks again.
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Old 10-03-2010, 02:46 AM   #7
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Firing order 1-6-5-4-3-2
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Old 10-03-2010, 03:01 AM   #8
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Ok. hey danthurs, how do i know which ignition coil terminal is which? haven't been able to find out which wire should go to which post. thanks. by the way, we like bonnevilles too. my brothers and i own an 88,89,and 90 all SSE'*. sweet car. I'm actually doing this job for a friend so I need to get it right.
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Old 10-03-2010, 04:08 AM   #9
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I did more searching and found this image, I'll try it again and post the results
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Old 10-03-2010, 04:11 AM   #10
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