Quote:
Originally Posted by old_master
Post #4 explains it. Not exactly sure what causes it, could be a design flaw in the cap, could be inferior materials were used when manufacturing the cap, could be poor insulation of the "runners" in the cap. If you look at the cap, you'll see that the plug wires are not attached to the cap in the firing order of the engine. This was done in an effort to eliminate crossfire inside the cap, (which will cause P0300). If the insulation is inferior, crossfire will occur. If you check around the forum, (not only this one) you'll find more than just a few instances of AZ caps, and other aftermarket caps, causing problems. 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. |
Got the AC Delco Cap and Rotor from Rockauto, installed it, problem gone! Thanks a bunch to all! Evidently previous owner broke the plastic part on the distributor that you screw into, just the threaded pre-formed holes. Do they sell this part separately, instead of buying a new distributor? I may have to JB Weld a nut there on the distributor. I have 3/4 circle there, so it's tight, but I don't like this. Now, I'm going to get my money back at Autozone. Happy Happy Happy.