[Rick Norwood]

Originally Posted by old_master

AZ by far is the worst offender though Sometimes they work for a day or two, sometimes they last a few months, and sometimes they fail right out of the box.

I thought so too until I replaced the entire Distributor on My 2001 S10 Blazer. I found out after the fact that is was an Airtex Distributor that came with a Cap. Within 6 months, the Airtex Cap burned through on the inside and shorted out between the two neighboring wires. So add Airtex to the list of garbage Caps. AC-Delco is the only way to go.