I have a major issue...my Jeep larado 4.0 shuts off while driving for about 30-45 minuets. It hesitates a bit then the engine shuts off. The lights stay on and the radio will stay playing, just the engine cuts off. It takes about 30minuets - and hour to actualy be able to turn the engine back on. It will crank but unless it gets some rest it won't turn over. I have replaced the ignition coil, distrubitor(whole thing-including casing), did a full tune-up, and replaced the radiator...! I am practically rebuilding this truck with nothing solving the actual problem...lol.
The gauge for the gas level (on the dash) goes crazy at random - when I have a full tank it can still drop to empty then go back to where it's supposed to be. This problem started when my truck first started hesitating (begining of the year) while in motion....now it cuts off.
It has been suggested to replace the fuel pump. I was told by a mechanic how to test it - when my truck shuts off spray some start up fluid into where the air filter hose attaches to the engine (opening the throttle manually) if it starts up right away it's the fuel pump. Is this test accurate? I did this test and it started right back up and made it all the way home. I have not driven the car for more than 10 minuets from home at a time.
I need to know if anyone else has had this issue or knows what the real issue is. By the way now that the weather is getting cold the time it can last before cutting of has increased (it shut of allot easier over the summer).