I wrote an entire post that ain't there?????????????????? What happened?????????????? Here is what I tried to say:
We have one of those vehicles at our shop right now. He owner had a friend parts changer throw parts at it to fix a running problem. What we did was replace a cheap Autozone distributor cap with an AC Delco cap. It seems to have fixed the problem but we are going to hang on to the vehicle until it rains to be certain because that is the only time that it acts up. That is another weakness of parts changers. If they get a bad new part they do not have the expertise to diagnose the vehicle and they will keep throwing parts at them. They have a high potential for bad electrical parts if they are buying the cheaper lines at Auto Zone or Advance.
Sometime back we had a guy with a Ford truck who had finally given up. When he tolded us everything he had changed I totalled up about $450 worth of parts, not counting all of the gas he burned running to the parts store, and that is putting no value on his time. He was running to Auto Zone and they were scanning codes and selling him parts. He finally gave up and came to us. Within 5 minutes we knew what was wrong and fixed his truckl for $50.00. I never saw a man more stunned in my life.
If these parts changers would figure the cost of parts installed that they didn't need, the gasoline they burn, and the hours spent they would find out that they don't save a thing over professional repairs.