I have a 2006 Dodge Dakota with only 17,000 miles. But I've only had it for the last 4,000 miles. It seems to have a humming/whining at 37 mph, 42 mph, and 52 mph, etc. It is only upon acceleration. The dealer has replaced the radiator fan clutch assembly and completely overhauled the rear differential assembly, but apparently that's not it, as the noise is still there.
Any ideas?
Although this is an old thread, i just got finished installing an oil cooler, and then started the humming sound, i think the fan pulling in the air causes this humming sound because of the addtional mounted radiator in the front of the main radiator
Could be power steering pump low on fluid
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I'll check it when I get home. The truck has had other recent issues, and I'm getting concerned that maybe it was a "flood vehicle" from FL - although I have the Carmax report and the dealer assured me it wasn't (but like they'd tell me). Bad battery, bad temperature overhead module, bad rear differential, A/C freezing up, windows popping, and I even think the turn signals are starting to skip a beat. We looked under the dash at lunch today and could see rust on the metal parts inside the truck under the dash...The truck came from Tampa, FL. Am I just being paranoid? I asked the dealer who has been trying to repair my truck (not the same dealer who sold me the truck), and they said they they did not believe it had been in water. But then again, I'm not convinced that they know much about flood vehicles, or are experts on anything.
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