Not good .. Help! - Page 2 - JeepForum.com

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post #16 of 18 Old 02-01-2013, 07:47 AM Thread Starter
wranglersimpson
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1994 ZJ 
 
Join Date: Mar 2012
Location: Belding
Posts: 9
Thanks all. I have ran it several times with the cap off and well past the thermostat opening. I can watch the level drop but that's about it. It seems that the only flow it is getting is due to gravity and not the pump...

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post #17 of 18 Old 02-04-2013, 12:46 PM
FlameInGa
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Join Date: Oct 2012
Location: Harlem
Posts: 22
Quote:
Originally Posted by wranglersimpson View Post
Thanks all. I have ran it several times with the cap off and well past the thermostat opening. I can watch the level drop but that's about it. It seems that the only flow it is getting is due to gravity and not the pump...
So, have you replaced the faulty water pump?
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post #18 of 18 Old 02-04-2013, 12:51 PM Thread Starter
wranglersimpson
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1994 ZJ 
 
Join Date: Mar 2012
Location: Belding
Posts: 9
Yep, replaced the water pump again yesterday and the thermostat once more. I know one thing now though. She, my Jeep, is a total liar. I used an IR heat gun aimed at at all of the hot points i.e. base of the thermostat neck, coolant, upper and lower radiator hose, and even at the base of the intake nearest the head. It NEVER reads more than 194 while the gauge tells me 240. If it were 240, this thing would be blowing steam like mad! So now, which sensor runs that gauge? The white one wire "sensor" or the balck two wire sending unit? I think I am going to hook up my Snapon scanner to it and see what the computer thinks the temp is. As for the no heat ... Still barely any heat. When I took measurements of the heater hoses, the input is about 50 degrees hotter than the output from the heater core = clogged heater core.
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