Snake the belt on and over the bottom pully and the tensioner pulley. Tighten the tensioner bolt until its just a little snug. Just enough not to come off. Tighten the pulley bolt as that "stakes" the tensioner assy. Put the car in INSPECTION mode and let the engine run for about 10 minutes.
Insert your belt through the left-side loops first. Take the end of your belt, and begin inserting it into your belt loops with the loop on the front left side of your pants. Thread the belt end through each loop, pulling the belt through as you go. Once you reach the last loop, buckle your belt.
When should you replace the serpentine belt tensioner. Let’s get this straight from the get-go, a serpentine belt tensioner doesn’t last the life of the vehicle. In fact, most start to show serious wear right around the 100K mile mark. You may think a worn tensioner just means your belt loses tension; you’d be wrong. It’s just the opposite.
Although it isn’t the same as a check engine light, a noisy serpentine belt does indicate something’s wrong with the drive belt system. But the belt may not be the culprit. A serpentine drive belt can make all kinds of odd noises. It can squeak, squeal, chirp and clunk, imitating a bad engine-driven accessory or engine bearing.
First I would try to re-align the belt. Release the tension on the belt and line it up correctly on the power steering pulley. Make sure it looks right everywhere. Then release it, start the car, and see if it stays correct or moves. If it again becomes off-centered, I'd say there's a problem.
Jan 21, 2017. #1. I purchased a new serpentine belt for my Cruze (1.4T engine) since it's about time to change it based on mileage. The new one is 3/4"/25mm too short at 1395mm vs. the original's 1410 mm (that translates to 55" vs. 55 3/4"). The belt maker's Web site says that the 1395mm belt is what they have for the application.
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how to tension a serpentine belt
