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Gabriel
Dodge Dakota
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8/15/2002
16:41:04
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 Subject: Weird motor growl?
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Message:
I have noticed on my '02 4.7 4x2 that sometimes the motor gets a weird tone to it from time to time. The noise generally occurs when the motor is really hot... I think. It has only happened a couple of times in the 3-4 months that I have owned the truck. It is very intermitent. This last time I was running pretty hard up the mountains from Phoenix to Flagstaff in 100+ degree heat. Generally when I would get to the top of a hill the noise start up. After a little bit it would settle back down again. The noise is really hard to explain, other than saying the motor starts to growl. My first thought was a problem with the transmision/torque converter. But, it might just be the fan kicking in. Do these '02s have an overdrive pulley system for the cooling fan? I know some trucks with tow packages have been known to have a dual speed mechanical fan. Or, is there something else I should be considering... like a catastrophic motor or tranny failure?
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Bob W
GenIII
8/15/2002
17:03:30
|  RE: Weird motor growl?
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Message:
There is some kind of thermostat built into the mechanical fan you can see the coil on the front of it.
Gibson headers, Gibson Cat-back, Edelbrock IAS shocks, K & N drop in, 180 stat, Jet stage II chip, ARE Lid
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darcy
Dodge Dakota
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8/15/2002
18:11:26
|  RE: Weird motor growl?
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Message:
Hey, mine has done the same in the little over 2 months that I've had it it's happend twice. I think it's just the fan, mine is an '02 4.7 CC Sport and it has the tow package so we're probably hearing the same sound
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kota318
Dodge Dakota
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8/15/2002
18:27:38
| RE: Weird motor growl?
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Message:
i have the same sound on my 97 5.2l. it happens when i running around 210 degres or over
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Gabriel
Dodge Dakota
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8/22/2002
14:40:36
| RE: Weird motor growl?
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Message:
If the truck has an "over-drive" fan clutch in it I am 99% shure that is the issue. I wasn't aware that my truck had that type of setup. I will need to check the fan clutch... but it definitely sounds like the fan is going into overdrive until it cools the motor off.
Thaks for the input!
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hot rod
Dodge Dakota
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8/22/2002
18:41:50
| RE: Weird motor growl?
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Message:
my motor growls.
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Jason Gilbert
Dodge Dakota
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8/24/2002
00:04:21
| RE: Weird motor growl?
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Message:
I travel the same Rt17 from Phx to Flag in the summer but my 97 5.2 never gets over 200 degrees. I never hear the sound. Hope you figure it out.
Jay
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