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teamfast
Dodge Dakota
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12/23/2002
22:36:16
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 Subject: Cold start "buzz"
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Message:
When the temps really get low and the truck sits overnight, a buzz can be heard for about half a second at startup. To the best of my ability, i have searched for a clearance issue with the fan blades and the shroud but have come up empty handed.
Especially for those of you who have done fan work. what may be some areas that pose clearance concerns.
Its possible its ice building up on something?
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Todd W
GenIII
12/24/2002
01:05:54
|  RE: Cold start
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Message:
Is it really loud? I know the Fuel Pump can sometimes buzz on startup... but I suppose since you are looking at the fan it seems to be coming from the front of the truck?
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2THEXTRM
GenIII
12/24/2002
11:48:52
|  RE: Cold start
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Message:
Got the same noise on my 01 Dak your describing when it is below 20 degrees and truck sits all night, doesn't do it after it is warmed up and restarted. My 02 Dak doesn't do it at all. To me it almost sounds to come from near the firewall, possibly the vaccuum system for ventilation system? if there is one.
Flowmaster cat back w/15 inch chrome tip, Volant Intake, Poweraid TB Spacer, Splitfire Plugs, full synthetic fluids
3 inch body/1.5 inch Block Lift, 305 70-16 X-Terrains on AR Terons, Pro Comp ES9000's
Grizzly double/single rollbar with (6) Hella's, Manik Nerfs, Line-X, Hard Work & $$$$$$$$$$
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teamfast
Dodge Dakota
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12/24/2002
14:39:43
| RE: Cold start
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Message:
its definatley coming from the engine bay. Yes its an 01. Im reluctant to get to the dealer because they give me such runaround.
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teamfast
Dodge Dakota
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1/22/2003
19:13:06
| RE: Cold start
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Finally went to dealer. Told all trucks do this, couldnt beleive the lack of interest from the lady behind the counter.
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chris
Dodge Dakota
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1/22/2003
20:02:05
| RE: Cold start
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Message:
i have it twice. my 2000, and my 93 do it when the temp drops. it comes from the power steering pump just a little bit of cavitation before the fluid moves
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Canadakota
Dodge Dakota
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1/22/2003
20:08:37
| RE: Cold start
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I have a 99 and that happens to me in the winter all the time. I have just come to accept the fact that it does it. Hey, when it gets to -45 degrees (YES, it is that RIGHT NOW!!!) you hear all sorts of weird stuff!!!
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ken
Dodge Dakota
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1/22/2003
20:30:53
| RE: Cold start
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Gotta remember that all machines are engineered for a common range of operating conditions, then accepted even when they don't quite make the grade....
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daniel
Dodge Dakota
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1/22/2003
22:04:01
| RE: Cold start
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The steering pump theory jives with my experience.
When I first turn the wheel it feels like it slips. Similar sound on really cold (its 8F now) starts, only in morning. Aside from sound and initial turn of the wheel, no real problem.
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teamfast
Dodge Dakota
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1/22/2003
22:59:28
| RE: Cold start
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Message:
A friend agrees that it is the power steering pump. If you look at TSBs at alldata.com, in Aug 01 there is one for power steering fluid change - new type. The dealer said there was nothing they could do. Are there any additives available? synthetic maybe?
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01RCMotorspt
Dodge Dakota
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1/23/2003
11:39:20
| RE: Cold start
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Message:
I also have the same quick "buzz" noise at startup in the extreme cold mornings. I almost want to believe it's the fan clutch.. The only reason I think that is because my 99 Chevy 3500 work van does the exact same thing... That van has done it every cold winter for the past 4 years with no affect on anything...
FWIW, I recently had the fan clutch replaced due to vibration (they found out)at the dealer - although I went in for getting vibration from the A/C compressor checked. The "buzz" is still the same /w/ the old/new fan clutch...
...Jon
01 Motorsport Edition
4.7/RC/3.92/5sp
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Canadakota
Dodge Dakota
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1/23/2003
14:25:09
| RE: Cold start
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Message:
Actually I've heard too that it was the fan clutch. Another guy I know replaced his and it was fine after that. I don't think it's a really serious problem though....I hope!
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