squeaking belt or pulley
1994 Dakota 5.2 with A/C.
For about the last two weeks (became very bad in the last week) either my serp. belt or a pulley has been squeaking. It started as an occasional squeak, now to quote someone else, it sounds like "someone is slaughtering hogs" under my hood.
Here's what I've done so far...
1. New belt. Still squeaks.
2. Took off and cleaned my tensioner pulley. It was well matted with about five years of road grime. Still squeaks, but only after the RPMs are brought past idle.
3. Replace the idler pulley. When spun on my finger, I could feel the grit inside the bearings. (Couldn't feel the grit on the tensioner pulley). Still squeaks, but only after RPMs are brought past idle.
4. Replaced the water pump. Bearing failed the "push and pull" test for slop. Replaced with a new waterpump. Still squeaks at RPMs more than idle. Took off the fan and fan clutch "just to see". Didn't help with the squeaks.
My fear was something on the crank pulley (bushing or bearing going), but I ran the engine for about 15 seconds without the serp. belt. I ran it above idle, so I know I should have heard something if it was the block. But, she purred away, as quiet as I hoped for.
Now, this brings me to my point... If this is a case of "misalignment", how do I measure for alignment and then adjust the needed pullies. I'm guessing I should replace the tensioner pulley (not the entire tensioner, the belt has good tension) because if the idler failed, not much longer until the tensioner fails. I'm also going to go and return the serp. belt today to get another one. Maybe the problem is as simple as it was a poor quality belt.
Any help or ideas would be greatly appreciated. I'm about at wits end, and the cold snap that we are going through is not helping. My garage kerosene heater can barely keep up.