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20:08:45 - 04/26/2024
Dakota Performance
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shunpike1
Dodge Dakota
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4/12/2002
02:49:55
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 Subject: thumping
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Message:
I own 2002 QC 4x4 w/awd, etc. Have minor thumping when @ 5-10mph. Feels (through frame and gas pedal) like a mount is loose. Anybody with similar problem?
Also at certain times (starting and slow crawling off-road) sounds like engine fan running overtime w/lessened throttle response. ?????????
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Halo3
GenIII
 
4/12/2002
07:54:04
|  RE: thumping
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Message:
Can you explain the "thumping" a little more. When does it happen? Under what circumstances? Steady roll or at acceleration? Is it worse during turns? Is it a constant thumping or one that you hear once in a while?
As for the second question, this is pretty normal. My 2000 QC 4x4 does the same thing. When off-roading or crawling along with thick traffic, there is less airflow through the radiator/coolers. Hence, the engine fan stays on a LOT more in an effort to keep things cool. To make matters worse, my Warn winch blocks a significant portion of the lower grill area....so both my engine fan & electric fan run double-duty trying to cool my 5.9L down on the trails & in traffic.
Maybe its just me, but I think the engine fan robs me of about 84,000 horsepower!! 8^) All right, that's an exaggeration, but it is definitely noticable!
I think one of my projects this summer will be to install a pair of (or single large) Flex-a-lite electric fan that can move more air more efficiently than the OEM electric fan.
Semper Fi,
Halo3
'00 Lt. Driftwood 4x4 SLT DQC w/5.9L
http://home.attbi.com/~quadcab
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