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1991 Chevy Caprice Fluid

Tiny
CAROLG
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  • 1991 CHEVROLET CAPRICE
Transmission problem
1991 Chevy Caprice V8 Automatic 98872 miles

I have 2 questions, one is what is the best transmission fluid to use? The second is what are the best spark plugs to use and the correct setting on the guage?
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Thursday, April 9th, 2009 AT 8:26 PM

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Tiny
SERVICE WRITER
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DextronIII. Any brand.

Spark plugs-Autolite or a/c Delco.

What's the 8th digit of the vin?

Then I can giove the part # and gap.
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Thursday, April 9th, 2009 AT 8:56 PM
Tiny
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I think I've got the hang of this now, the eight digit from left to right is "E", but from right to left it would be "M".

I will make a contribution when I get paid and will book mark this site to make sure that I do.

Thanks
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Thursday, April 9th, 2009 AT 10:46 PM
Tiny
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E is the one. You have a 5.0 (307) engine. Non-police package. If you need to know.

The Auto lite spark plug number is "26". This is a standard resistor plug that I would change every 30-35,000 miles. The gap that needs to be set is.035".

Use some anti-seize on the threads but away from the electrode. Use silicone dielectric grease on the plug wire ends before you reattach them.
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Friday, April 10th, 2009 AT 6:09 AM

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