In my search for a good automotive oscilloscope, I decided to test out what I already have on my bench. The Tektronix THS720A has been a great bench scope. In this video I look at the IAC waveform to see if it’s ok. This 1988 XJ has high idle problems.
Jeep XJ Air Conditioning R12 Recharge !!!
The rebuilt suction hose was installed today. The AC system was then evacuated and recharged with R12 freon. Runs nice and cold now !!
Jeep XJ Air Conditioning Updates
Lots of tools and AC components from Ebay!! The latest is the AC compressor for the ’88 XJ. Checking it for freon leaks. with another very useful tool. The ’86 XJ is getting a new hose soon. Was able to use the freon pump, also from Ebay !! Good deals on good tools make this project work !!!
1986 Jeep XJ Fuel pump Rebuild/Repair
The cheapest option for rebuilding the fuel pump in the XJ was to pick one up from the junkyard. I show a lot of detail in this video since the repair process is intricate. Don’t forget to buy a new pump to tank o-ring seal like I did !!!! The sending unit for both fuel pump modules matched the fuel gauge perfectly.
1988 XJ 4.0 AC Compressor is Junk !!!
The sealing surface for the body to front face plate o-ring, has 2 major scratches across it. This was done by a real rookie. Those scratches are where the freon sniffer found a major leak. The square cut o-ring cant’t seal across the Grand Canyon!! Now I need to find a used compressor from the junkyard.