starting problem, kinda

Lately, whenever i start my jeep it cranks for about 10 seconds before it finally starts. It gets a little worse every time. Until the last time it happened it cranked and cranked but wouldnt start at all. I let off the key and tried again and it started right up. The strange thing is it only does this like once every two or three weeks, and just when i think the problem is gone it happens again. If anyone has any input i would appreciate it.

The crankshaft position sensor maybe going bad. It's mounted on the bellhousing on drivers side Do a search for CPS lot of info. on it badge714
Year and engine

Mine had an erratic starting problem,about once a month, it would crank and not go, a few minutes latter it would start right up. Two weeks ago, it did it, but never came back. I was thinking CPS. But it turned out to be a bad relay in the box under the hood.

Mine's a 91, I take it that yours is an 01. Is it a 4.0?

I'm not sure how simular the two would be. I traded relays for awhile to get it home.

Good Luck.

Daryl

PS. Welcome to

hmmm freaky... must be a bad moon phase or somethin'!

my otherwise-running-fine 60th anniversary XJ decided to act up on my today too...

http://www.naxja.org/forum/showthread.php?p=475905

had this problem and it was the tps. was showing full voltage with the throtttle closed so the computer thought i was flooring it while i tryied to start it. swapped it out and no more problems.

If it helps; yes it is a '01 and has the 4.0L engine in it.

Hey, JEONLYEP which relay was it?