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Homer .S.
Dodge Dakota
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1/06/2004
20:18:06
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 Subject: could this be water pump?
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Message:
Rev engine and hotter air starts comming out.
When idling not much heat comes out.
1999 cc 5.2 100,000 miles
Thanks
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purpledak
Dodge Dakota
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1/07/2004
09:09:54
|  RE: could this be water pump?
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Message:
I had the same problem with my 97 Club Cab. I searched this forum for the problem and found out about backflushing the heater core. After I back flushed my heater core the problem has been solved. I now have good heat at idle and durring revs. I had a bunch of crap blocking the entrance to the heater core, and when I backflushed it a bunch of yellow/brown gunk came out even though I have green fluid in the radiator.
Search the forum here for heater core backflush, or just "no heat" and you should find a simple procedure on how to do it.
97 CC 318 K&N FIPK Flowmaster 50series 3" to 2.5" cat back system high flow single cat
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Justi
Dodge Dakota
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1/07/2004
10:15:24
|  RE: could this be water pump?
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Check your radiator coolant level as well. Sounds simple and stupid but my wife complained of that exact thing, I checked her coolant and it was low as hell. Added some water and the problem cleared up instantly. She had a freeze plug working it's way out and was losing water that way..
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Homer .S.
Dodge Dakota
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1/07/2004
11:36:10
| RE: could this be water pump?
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Message:
checked coolant level, back flushed heater core. its a little better but i still think the pump could be going south. Ive looked for leaks at the weep hole but nada. I guess I'll just keep an eye on the temp gauge for now (its never overheated). Is there a way to test presure of coolant flow? Or givin the mileage 100,000 miles should i just replace the pump. Thanks
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chrytech
Dodge Dakota
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1/07/2004
16:33:42
| RE: could this be water pump?
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Message:
you got air.Heater core is the highest point
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disaster
Dodge Dakota
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1/08/2004
13:02:33
| RE: could this be water pump?
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Message:
sounds like a thermostat. if the thermostat is stuck open coolant is constantly flowing through the radiator. typical symptom is no heat when idling but heat while moving (engine under load).
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