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#1
07-10-2006, 10:30 PM
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87 GMC Sierra question
I'm doing a tuneup for my dad's friends 1987 GMC Sierra 3/4ton truck. It has the 5.7L engine. The only problem I have is the distributor cap. I replaced it with a new one and marked the old one for each cylinder. Well I marked them with paper and the wind blew the paper away lol. Can anyone please tell me the numbering for the distributor cap? I think I have the cylinders right. When looking at the front of the truck, 1,3,5,7 are on the driver side, 2,4,6,8 on the passenger side. Is that right?
Thanks for any help. 
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#2
07-11-2006, 09:44 PM
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Re: 87 GMC Sierra question
Yes, and the firing order is 1-8-4-3-6-5-7-2. Those '87 TBI trucks are getting hard to come by these days too....
__________________
GMC. The Strength of Experience.
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