keep burning out dist. cap and rotor


Old 12-24-04, 08:26 AM
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keep burning out dist. cap and rotor

I have a 1994 GMC 2500 4x4 V-8 that every month or so(2500 mles)
the distributor cap and rotor burn out. What can be causing this
to happen?? I have new plugs and wires in.
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Old 12-24-04, 10:44 AM
Join Date: Dec 2001
Posts: 2,538
what exactly happens to the cap and rotor when you say burn out?
Old 12-24-04, 01:47 PM
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dist cap and rotor

the rotor gets black on the contact points as well as the contact
points in the cap, the center point in the cap gets really black
I start to have trouble with acceleration and engine misses so
every time this happens I change the cap and rotor and eveything goes great again for another month.
Old 12-24-04, 05:24 PM
Join Date: Nov 2001
Location: North Texas
Posts: 2,345

Are you using good quality parts?Delco parts are a good choice.Can you move the center post and move it side to side?(play)
Old 12-27-04, 05:18 AM
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cap and rotor

I'm using NAPA parts and as far as i can tell there is no play
side to side.
Old 12-27-04, 07:00 AM
Join Date: Jan 2002
Location: Chicago
Posts: 1,915
Switch to Delco parts for one run. It may solve the problem.

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