Mike Romain

I would check the fan clutch first. If you heat up the engine, the fan
clutch gets very stiff and will stop the fan almost instantly when the
engine shuts down. If it continues to spin when hot, it is worn out.

Once off, you should not be able to make it spin with a hard finger push
when hot.

You also might want to clean the sender's connection. It is on the top
back corner of the head with a single purple wire going to it.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

help-slip-franklin wrote:
>
> Within the past few days I've noticed the temp gauge has gone up to about
> 250 and fluxuates between there and 235. The engine overheating light has
> not come on and there seems to be no other problems. There is abundant
> coolant and everything else seems fine. Is this a thermostat or possible
> water pump problem?
> Thanks
> H-S-F

Mike Romain

I would check the fan clutch first. If you heat up the engine, the fan
clutch gets very stiff and will stop the fan almost instantly when the
engine shuts down. If it continues to spin when hot, it is worn out.

Once off, you should not be able to make it spin with a hard finger push
when hot.

You also might want to clean the sender's connection. It is on the top
back corner of the head with a single purple wire going to it.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

help-slip-franklin wrote:
>
> Within the past few days I've noticed the temp gauge has gone up to about
> 250 and fluxuates between there and 235. The engine overheating light has
> not come on and there seems to be no other problems. There is abundant
> coolant and everything else seems fine. Is this a thermostat or possible
> water pump problem?
> Thanks
> H-S-F

Mike Romain

I would check the fan clutch first. If you heat up the engine, the fan
clutch gets very stiff and will stop the fan almost instantly when the
engine shuts down. If it continues to spin when hot, it is worn out.

Once off, you should not be able to make it spin with a hard finger push
when hot.

You also might want to clean the sender's connection. It is on the top
back corner of the head with a single purple wire going to it.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

help-slip-franklin wrote:
>
> Within the past few days I've noticed the temp gauge has gone up to about
> 250 and fluxuates between there and 235. The engine overheating light has
> not come on and there seems to be no other problems. There is abundant
> coolant and everything else seems fine. Is this a thermostat or possible
> water pump problem?
> Thanks
> H-S-F