06 Durango 5.7 whining noise
#1
06 Durango 5.7 whining noise
My D has 107,000 km on it and there is a whining noise that increases with RPM. I did some preliminary checks and the belt looks okay but I can't pinpoint where the noise is coming from. I did find that the idler/tension pulley has some play in it when you twist it. Should there be any play there? Suggestions please.
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The alternator doesn't have any play and the steering fluid is good. The tension pulley has some play but I checked a new one out yesterday and it also has the same amount of play. Unfortunately you have to buy the whole tension assembly here and not just the pulley. I may have to take the belt off and check for play with it off. Another post I found was a guy put a long screwdriver on a javex bottle with the bottom off and that really amplifies the noise to determine the faulty/failing part.
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My boss who is an ex mechanic seemed to think it is a hydraulic noise. I put a bottle off power steering fluid with additives in but made no difference. I'm not sure what to do next. The noise only happens when the RMP goes up. I checked with a Stethoscope and it sounds like the pulley on the water pump is making the most noise, not sure if it is actually just the regular noise but it is a lot louder than the rest. I'm assuming that is the lower idler pulley, correct?
Last edited by dctaz37; 07-03-2017 at 09:06 AM.
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