I can drive the car for days & sometimes it just quits & I have to wait 5 min before it will start & it will run a few miles more and then quit. If I leave it sit overnight the problem may not happen again for weeks. What's going on with it? Changed the gas filter & won't know if problem solved or not. Car idle's fine. Also, K&N filter will not work in this motor, runs for a couple of miles a quits.
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Hi. It would be useful to get a code read and some live data from a decent diagnostic tool. There are quite a few possible causes including, pressure in tank - if the fuel tank can't vent pressure then a vacuum will eventually form stopping fuel getting to the engine, this will cause it to loose power and stall. Then after a few mins the pressure will drop and the process start again, easy test is when the car stalls remove filler cap - if that's the fault there will be an audible hiss and the car will start up again.
part blocked exhaust will have same problems but will more generally cause a lack of power and acceleration.
are there other symptoms? i.e only when conering or only when pulling off or stopping, engine light on/off. Jon
You never leave a car running, as it will overheat the Exhaust Converter When you run out of fuel, you sometimes ruin the Fuel Pump It depends on gas to lubricate it,as strange as it sounds Check fuel pressure & volume at the motor with a gauge
It sounds like the catalytic converter could possibly be almost completely plugged up not allowing the exhaust to leave the engine like it should. It just builds up in the cylinder head and when it gets too much in it built up and there's no where to go, it'll stall the engine. By letting it sit for a few minutes, it gives the exhaust time to find a way out and the car will restart.
Your car has a temperature senser and as soon as the temperature is above a certain level the engine fails as a way of safety. its a safety control switch . First start the engine when it is cool and then check the performance of the fan. Is the generating enough air to cool the engine.as it is running check the temperature gauge i the car and see the level . It could be the fan not providing enough air cool the engine.
since its a 1997 your jeep has EFI, electronic fuel injection. The most probable reason for your troubles would be the injectors or a problem with the computer controling them, not allowing enough gas to be pushed into the cylinder causing stalling or lack of power, also too much gas iin the cylinder can lead to back firing and stalling. This would also explain the reason it takes so long to start back up some times, all the excess gas in the cylinder is flooding the motor and u have to wait till the gas disipates till the engine will turn over.
I have a 1999 Saab 9-5. I had a similiar problem. The car would always run cold. It would get hot and the engine would quit. It could be anywhere. One mile from start to 50 miles from start. Once it cooled down it would re-start but the cool down time was always different. Only difference for me was my car would crank, just not run. Replaced the crank position sensor ($60), no more problems! Good luck!