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07-19-2011, 11:09 PM
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#1 | |
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AF Newbie
Join Date: Jul 2011
Location: denver, Colorado
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
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97 Sierra Backfiring
First post...Blew intake manifold gasket and took it to a shop for a repair.
Mechanic called and said the two screws in the distributor rotor were just bouncing around inside so I said replace it. got the truck back and it is backfiring through the intake and running crappy at about 2500 rpm . I took the distributor cap off and the rotor turns maybe an 1/8'' each way could it be the distributor ? |
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08-01-2011, 05:34 PM
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#2 | |
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AF Regular
Join Date: Aug 2005
Location: Sidney, Ohio
Posts: 288
Thanks: 4
Thanked 6 Times in 6 Posts
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Re: 97 Sierra Backfiring
Replace the distributor. Your worm gear is worn.
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08-08-2011, 10:27 AM
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#3 | |
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AF Regular
Join Date: Nov 2004
Location: Bowie, Texas
Posts: 218
Thanks: 9
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Re: 97 Sierra Backfiring
You can also replace just the gear. It's not that expensive, and the dealer has it on hand more than likely. I did this a year ago on a 98 (5.7L), and cleared up the problem. The gear was so bad you could cut paper with it. The teeth were just on the edge of breaking.
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