MOPAR87

Kay so I have a 1999 Cherokee 4.0...it has a leak that only seems to leak after driving but I cannot locate...it's not a hose or radiator, I'm thinking gasket for the water pump or thermostat housing or both.
When my jeep got hot tonight I noticed all the hoses were piping hot, but the radiator cap was completely cool, what would cause that?

jomps

would replace waterpump and thermostat to start

MOPAR87

That's what I'm gonna try, those are the only reasons I'd guess it would be cool on one side but not the other...just figured I'd get some inputs is all!

jomps

yeah they are cheap and easy, can inspect hoses and flush your core while your at it

MOPAR87

Thanks jomps!

jomps

yeah man no probs

fishtaconc

I would say replace the hoses while your at it,especially if you don't know if they have been replaced. Would suck to replace/clean everything else, just to have a hose collapse. If your budget allows go new with the waterpump not reman, and either stant superstat, or MOPAR for the tstat.

Firestorm500

Is there a drip on the ground or on engine/undercarriage parts?

Or is it losing coolant with no external leak?

freegdr

have system pressure checked do the cap also b4 throwing money away .fix problem first .....

MOPAR87

It usually has a pretty big puddle under the jeep, but I can never find a coolant trail...from where the drip usually is I'd guess it's running down the block from somewhere, but I can't trace it

MOPAR87

Sorry it's been so long, I just had my daughter this past week! Well I decided to just buy a new water pump, thermostat housing and thermostat. So my water pump was leaking, and on top of a rusted thermostat housing the guy before me took out the thermostat!

jomps

wow about tstat, glad you got it figured out

ZINGGG

Welcome to the club of past owners just taking out the thermostat... Freakin idiots. But congrats on the newborn!

jomps

oh I didnt realize you had a baby, I just took it you were taking care of your daughter for the week...congrats