Jeep Performance Improvement Ideas
My 1991 Jeep Cherokee had the fragile plastic heater valve. Not only can this valve break and leave you stranded, it is prone to leak at the valve actuator. I have replaced mine a couple of times already so this time I decided to do away with it for good.
After replacing my engine, I had to reconnect the AC lines and replace the freon. The system was originally designed to run R12 but I swapped over to R134 a long time ago. However, I still like to use my old gauge set on the R12 style fittings. I just adapted the yellow hose to fit the R134 cans.
I installed a new dryer and reconnected the hoses using new O rings where the old ones looked bad. I then hooked up my vacuum pump and pulled al the air out. I shut off the pump and closed the valve to see if it would hold. It held vacuum so I assumed no leaks and popped in the first can of freon.
Continue reading “A/C hose replacement Jeep Cherokee XJ”My Jeep had the typical problem where the HVAC only blows out the Defroster. The defroster is the default mode when there is no vacuum supply. So I set about finding my vacuum leak.
When I put in my new engine I expected it to start up right away. I had carefully aligned the distributor, checked all the electrical connections and bled the air out of the fuel system.
Continue reading “Jeep 4.0 no start troubleshooting puzzle”
My old XJ has served me well for nearly 500,000 miles. The odometer stopped working at 444444 and I have swapped clusters a couple of times, so I really don’t know what the current mileage is.
Continue reading “Engine replacement Jeep Cherokee XJ”