I'm reluctant to post a new thread since several others report similar issues.
I am the original owner of a 2005 Liberty KJ 3.7L.
For several years, it has sporadically failed to start when warm after being off for 5-30 minutes, but not when immediately restarting it.
Sometimes, it's months between occurrences and sometimes it's several times a day. Last week it was several times, almost every time the engine was warm. The engine cranks but the idle is low and goes up and down for a second or two, then it dies, and does that again and again. If I feather the gas pedal when starting, I can sometimes get it to start. If I wait an hour or more it will start.
I replaced the Idle Air Control Valve but that didn't fix it. I checked the fuel pressure and it was in spec starting running and after turned off (but the issue did not occur during the test). Once when the issue was happening, I took off the fuel line pressure test cap, and there was pressure there. This issue persisted even after getting a new Jasper engine. I just replaced the camshaft and crankshaft position sensors.
I guess I'll see whether the issue recurs.
I am the original owner of a 2005 Liberty KJ 3.7L.
For several years, it has sporadically failed to start when warm after being off for 5-30 minutes, but not when immediately restarting it.
Sometimes, it's months between occurrences and sometimes it's several times a day. Last week it was several times, almost every time the engine was warm. The engine cranks but the idle is low and goes up and down for a second or two, then it dies, and does that again and again. If I feather the gas pedal when starting, I can sometimes get it to start. If I wait an hour or more it will start.
I replaced the Idle Air Control Valve but that didn't fix it. I checked the fuel pressure and it was in spec starting running and after turned off (but the issue did not occur during the test). Once when the issue was happening, I took off the fuel line pressure test cap, and there was pressure there. This issue persisted even after getting a new Jasper engine. I just replaced the camshaft and crankshaft position sensors.
I guess I'll see whether the issue recurs.
