Bad water pump?
#16
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 19
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
CF can base it's fees for adds on the number of clicks that happen on the forum. By taking away the year, more clicks are necessary to just know what the poster has. I'm sure they are working very hard to remedy this problem that came up a while back.
OK, so you want to use the pic in post #8, (for 91). Be sure to get that lower bolt below the belt. If the adjuster doesn't work fairly easily you missed something, and it's not hard to strip that if you did. Having the air cleaner out gives you great access to all sorts of stuff. (check your engine mount, lower wires, snug your manifold bolts, (all evenly)).
OK, so you want to use the pic in post #8, (for 91). Be sure to get that lower bolt below the belt. If the adjuster doesn't work fairly easily you missed something, and it's not hard to strip that if you did. Having the air cleaner out gives you great access to all sorts of stuff. (check your engine mount, lower wires, snug your manifold bolts, (all evenly)).
Last edited by DFlintstone; 02-16-2017 at 02:39 AM.
#17
Junior Member
Joined: Apr 2015
Posts: 46
Likes: 0
From: Ocala, FL
Year: 2000
Model: Cherokee
Engine: 4.0
Another option ....with a cold engine pull the thermostat housing and thermostat(2 bolts I think), start you engine and see if it blows water/coolant out . A good water pump will blow water out like a fire hose. A bad water pump will not move any fluid.
This is how I troubleshot mine, took the water pump out and it looked like this....bottom pic is a new pump....can you see the difference...lol
This is how I troubleshot mine, took the water pump out and it looked like this....bottom pic is a new pump....can you see the difference...lol
#18
CF Veteran
Joined: Jun 2016
Posts: 2,929
Likes: 5
From: York PA
Year: 2001
Model: Cherokee
Engine: 4.0 Litre I6
Another option ....with a cold engine pull the thermostat housing and thermostat(2 bolts I think), start you engine and see if it blows water/coolant out . A good water pump will blow water out like a fire hose. A bad water pump will not move any fluid.
This is how I troubleshot mine, took the water pump out and it looked like this....bottom pic is a new pump....can you see the difference...lol
This is how I troubleshot mine, took the water pump out and it looked like this....bottom pic is a new pump....can you see the difference...lol
#22
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 19
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
A very cool tip. I'm putting it in my sig. Killbox!