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Keith
Dodge Dakota
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7/30/2007
13:00:29
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 Subject: Overheating with new thermostat
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Message:
I recently changed my thermostat from a 195 to a 160. The engine is running hotter know than it did before. It usually ran around 200. now it runs around 240 after 15-20 minutes. Yesterday i had to pull off when it jumped to 260 in traffic. Any suggestions?
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daddio
Dodge Dakota
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7/30/2007
15:04:44
|  RE: Overheating with new thermostat
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Message:
i don't want to come off as a smart @ but
#1) did you get all the air out of the system?
#2) did you install the thermostat with the pellet/spring going into the manifold?
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Keith
Dodge Dakota
JOIN HERE
7/30/2007
15:43:45
| RE: Overheating with new thermostat
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Message:
There may be air in the system. I just changed the timing chain and water pump last weekend. I believe the thermostat was installed with the pellet/spring giong into the manifold.
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daddio
Dodge Dakota
JOIN HERE
7/30/2007
15:50:25
| RE: Overheating with new thermostat
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Message:
if anything pull that tsat out and see what happens. what year is you truck? jsut wondering if you got the right waterpump. i believe they made 2 different ones. and one is a reverse rotation for the serpentine belt drive.
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Keith
Dodge Dakota
JOIN HERE
7/30/2007
15:55:35
| RE: Overheating with new thermostat
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1997 3.9. ASC Water Pump, new. I'm sure it was the same one i took out, that is the impeller was mounted in the same direction.
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GB2000
GenIII
7/30/2007
18:46:21
| RE: Overheating with new thermostat
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Message:
Why so cold of a thermostat? Unless your engine's pretty built up to require it, I've heard 160's will throw codes a lot for engine running too cool for too long (although that wouldn't be the cause of your problems regardless). It's possible that you got a junk thermostat. It happens sometimes.
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Shoe
GenIII
7/31/2007
03:16:51
| RE: Overheating with new thermostat
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Message:
I ran a 160 degree in my 3.9 for awhile. It never through any codes. I liked the cooler running, it is easier on things.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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GB2000
GenIII
7/31/2007
03:34:08
| RE: Overheating with new thermostat
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Message:
Did it never throw codes or never trip the check engine light? I heard it wouldn't trip the light, but would store a code. I could be wrong though...never tried it.
I do, however, know that the 180 absolutely KILLED my gas mileage...and really didn't make a noticeable difference in anything other than running cooler. I was lucky to average 16-17 mpg city with the 180 thermo. After putting my 195 back in, I'm averaging right around 20 city.
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Shoe
GenIII
7/31/2007
03:54:09
| RE: Overheating with new thermostat
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Message:
No, I checked it before I wrecked it and I was not storing any codes. I got 24 mpg out of mine.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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GB2000
GenIII
7/31/2007
04:39:06
| RE: Overheating with new thermostat
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Message:
Jesus...maybe my truck's just a lemon or something...lol
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Shoe
GenIII
7/31/2007
11:44:11
| RE: Overheating with new thermostat
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Mine did have a 5-speed. How hard do you drive yours? Hell, I know that even if I drove mine pretty hard, I still got 18-20 mpg.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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daddio
Dodge Dakota
JOIN HERE
7/31/2007
11:57:56
| RE: Overheating with new thermostat
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Message:
i tried a 160 in mine and got a code P1492 i think. too cold for too long and mileage went down 1-2 mpg. '00 QC 3.9 5spd.
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Shoe
GenIII
7/31/2007
13:30:37
| RE: Overheating with new thermostat
IP: Logged
Message:
I guess that I just got lucky.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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