PNP Preventive Maintenance?
[Rafael Riverol] To avoid such headaches and AT replacements at a cost of several thousand dollars, perhaps maintenance should include PNP overhaul (cleaning the inside electrical parts and regreasing, and perhaps replacing the wire loom or patching it with electrical tape if frayed) when we flush ATF every two or three years. I found I did not have to touch exhaust pipe or ATF line to get to the PNP switch. So it can be overhauled with little trouble, particularly if the car is on a lift, and expense. This would be a good time to clean and repack with dielectric grease AT electrical connectors on the driver side of AT by ATF filler tube.
