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[Mart1471]

Hi folks :-) I've a 97 grand cherokee 2.5td and it's driving me nuts..

Basically it'll always start, but runs for a few seconds after the ignition has turned off?

When it's running it drives like a dream, however occasionally when stationary when warm it will cut out and refuse to restart.
Sometimes a squirt  of easy start and she's right as rain, other times its a tow it home jobby.

Any ideas or experiences with these? I'm desperate and have just fitted some dirty great off road tyres that are dying to be tested.

Cheers

[Dave69]

sticking or faulty shut off solenoid causing over run?

[bisleywrangler]

Crank position sensor for the stalling and not restarting maybe. Does the rev counter die before the engine stops? That was the clue on mine. As for running on, it does sound like the solenoid, as Dave said.

[Mart1471]

Cheers  for the replys chaps, how would you go about testing each one? I was under the impression the solenoid wouldn't cause stalling as it merely opens and closes when starting and stopping? Cheers

[bisleywrangler]

My cruise control was not working correctly when my crank position sensor was faulty, does yours work OK?

[LairdScooby]

Cheers  for the replys chaps, how would you go about testing each one? I was under the impression the solenoid wouldn't cause stalling as it merely opens and closes when starting and stopping? Cheers

As the car gets older the solenoid gets a bit clogged up with varnish from the diesel so doesn't always fully open. This can cause the solenoid coil to get hot and momentarily lose connection. As it's under spring pressure to close, that's what it does. As time goes by with the solenoid coil getting hot, it will eventually burn itself out which will leave you unable to start the engine at all.

Of course it could just be a bad connection on the solenoid causing all the problems.