Water Pump Replacement

dbag97 · 10-23-2006, 12:45 PM

I am about to change out the water pump because I think its causing some other problems. I did a squeeze test on the upper radiator hose and I dont feel a surge of water going thru as I release it. Actually I dont feel much if any difference in the pressure of the hose whether the veh is running or off. I changed the thermostat and it keeps the temp below 1/2 way on the gauge so I know that coolant is running thru the engine atleast some. I hope I am diagnosing this properly so i dont change the pump out when I dont have to. I think this is the cause of my no heat situation too. How much of a pain in the rear is changing this pump out and are there any suggestions to avoid any problems or short cuts to make my day easier???

dan
97 2.5L

rudyyj · 10-23-2006, 01:24 PM

i would be suspect of your diagnosis...

if it ain't overheating, i would have no reason to suspect the pump.

is the upper hose getting hot and pressurized when it is at operating temp?
are the heaterhoses getting hot?

i don't know all the ins and outs but i seem to recall there being some problems with the blend doors in the heater housing...that is where i would be lookin

dbag97 · 10-23-2006, 02:33 PM

all the heater stuff has been checked and ok. i just have to flush the heater core and then the water pump is the only thing left to replace or check.

dbag97 · 10-23-2006, 02:35 PM

oh yeah, no the upper radiator hose is not pressuring at normal op temp....

**TheBoogieman** · 10-23-2006, 02:39 PM

If the water pump is bad you would be overheating very quickly.Maybe your new thermostat is bad like the one's I buy at Autozone.

dbag97 · 10-24-2006, 02:42 PM

today I am flushing the system and the heater core. If that doesnt work and the upper radiator hose still doesnt have pressure in it.....its gotta be the pump. right???

10-23-2006, 02:33 PM	#3
dbag97 Registered User Join Date: Jul 2006 Location: nc Posts: 24 Profile Gallery Classifieds My Jeeps	all the heater stuff has been checked and ok. i just have to flush the heater core and then the water pump is the only thing left to replace or check.

10-23-2006, 02:35 PM	#4
dbag97 Registered User Join Date: Jul 2006 Location: nc Posts: 24 Profile Gallery Classifieds My Jeeps	oh yeah, no the upper radiator hose is not pressuring at normal op temp....

10-24-2006, 02:42 PM	#6
dbag97 Registered User Join Date: Jul 2006 Location: nc Posts: 24 Profile Gallery Classifieds My Jeeps	today I am flushing the system and the heater core. If that doesnt work and the upper radiator hose still doesnt have pressure in it.....its gotta be the pump. right???