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Old 01-19-2009, 06:54 PM   #1
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Did a little searching and found all the routes to explore just wondering if someone had the same problem or knows the exact answer>>

have a 98 sport, used to get heat as soon as the temp needle hit the white line between 100 and 210 (155??) and the engine temp would continue to climb to 210.

Recently lost hot heat (have luke warm heat) and noticed the temp only reaches about 200 maybe a little less.

Any one know the exact problem or am I looking forward to exploring the water pump, hoses, thermostat, radiator in the least expensive order?

I put a new water pump in 40K ago, and ran some radiator leak stuff through it at the same time to stop the leak.

Thank you. Aaron
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Old 01-19-2009, 07:03 PM   #2
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well leak stop also plugs core in heater core slowing down coolant flow.if you have a 195 degree thermostat which should have been factory it starts to open around 185 and is fully open around 205. Make sure your coolant level is full and if that does not help change thermostat and flush heater core while you have the coolant drained. oh ya welcome to the WF...

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Old 01-19-2009, 10:35 PM   #3
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Check your coolant level as autogyver suggested, then flush as needed. Could be a double flusher that's the problem I always have, ohh sorry we are talking about your JEEP
"Waking up early pulling double shifts is going make an old man of me long before I ever get rich"
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Old 01-20-2009, 03:00 PM   #4
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Check your radiator fluid level as well as the fluid in your over flow bottle.

Also check to see if you have a vacuum heater hose line that might be hanging free in the engine compartment, mine is on driver side towards rear of engine, looks like this.

98TJ / Hi-Lined / Zip Lockers / 35s

Family Rig / Tow Rig: 08 Tundra & 16ft Trailer
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Old 01-28-2009, 10:56 AM   #5
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Thanks for the responses! hoping to find time before the supergame ....but then again it took me this long just to get back on the forum will post up anything I find.

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