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brentsdak
Dodge Dakota
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6/25/2005
13:03:59
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 Subject: Running Hot after work done
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I have a '96 Dakota 3.9 and I just had the waterpump replaced, new T-Stat (180) and the whole system flushed. I even checked the t-stat to see if it was plugged. It's running warmer now than before everything was replaced. Does anyone have some suggestions?
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Dan M
Dodge Dakota
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6/25/2005
13:17:16
| RE: Running Hot after work done
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how much warmer are we talking?
Have you checked the coolant level? is it mixed properly? I recently replaced my a/c evaporator and replaced it with the 50/50 mix of antifreeze. I noticed my truck runs slightly hotter now than it did before replacing the evaporator. It's just the coolant mixture. I'm a little to lazy to drain some and fix it.
- Dan M
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brentsdak
Dodge Dakota
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6/25/2005
13:24:12
| RE: Running Hot after work done
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It's running between the middle to the max. before the work done it was between the low side to the middle. I checked the mix and it's 50/50.
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daddio
Dodge Dakota
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6/25/2005
13:30:35
| RE: Running Hot after work done
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you could pull the tstat and check it with a thermometer and a pot of water to make sure it is opening at 180 and not higher. i have seen some cheaper onesdo that kind of thing.
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93dak4x4
Dodge Dakota
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6/25/2005
23:51:49
| RE: Running Hot after work done
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are you sure that you dont have an airlock in the block? i've seen it before where they develop a bubble of air in the water pump and the impeller pushes nothing. havent seen it on a dakota but i have seen it on other vehicles.
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Armin
Dodge Dakota
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6/27/2005
10:55:52
| RE: Running Hot after work done
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It's also possible that the replacement water pump has a reverse impeller. Some water pumps direct the flow backward instead of forward. The reverse pumps have an "R" stamped on the impeller. Whichever the case, always match the new one to the old one. If it's pumping the wrong direction, it can cause overheating.
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fireman5411
Dodge Dakota
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7/20/2005
21:14:48
|  RE: Running Hot after work done
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my 98 3.9 was doing the same thing, i changed the water pump and thrmostat and flushed it myself. Make sure that u have the right temperature thermostat that ur chilton says, but then u maybe clogged up like i was so i went and had mine rotted out for 50$ and i havent had a problem since
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