1989 gmc sierra sle 1500 350 what would cuase all the contacts in my fairly new distributer cap (300 to 500 miles) to be co verde in a thick layer of bright green corrosion ?


Asked by Feb 16, 2014 at 04:52 AM about the 1989 GMC Sierra 1500 C1500 Standard Cab SB

Question type: Maintenance & Repair

recent tune up wires cap plugs tbi rebuild

4 Answers


Moisture probably. Has it sit for a while?

1 of 1 people found this helpful.

no it has not sat


This is an old truck- you may need a new distributor- either moisture or oil, or oil vapor, or bad juju could be entering the cap from down under, engine side- or the cap itself is not sealing for some reason-

Best Answer Mark helpful

inside distributer lots of rust around pick up coil area could not figure out the cause

Your Answer

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