1996 GMC Sierra corrosion in distributer cap

118,000 MILES • V8 • 4WD • AUTOMATIC
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123CHRIS321
  • MEMBER
  • 1 POST
HI., I have had 3 distributer caps fail due to corrosion build up in the last 2 years the last 2 replacements were AC DELCO.
WHY?
Feb 3, 2009 at 11:34 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi:
It is unusuall for that to happen. Moisture will cause it. They make a product that sprays on a water tight seal. You may want to try it. Also, make sure that water isn't getting on it as a result of a bad seal on the hood.
Feb 5, 2009 at 7:09 AM
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