Can serpentine belt cause knocking?
Symptoms of a broken serpentine belt include loud slapping, squealing or knocking noises coming from under the hood. The battery-shaped charging system warning light might also come on because the alternator will stop charging the battery. If a car has a hydraulic power steering pump, the steering will become stiff.
Why is the knocking more noticeable after a belt change?
Before the timing belt change there was a slight knocking from one of the cylinders. After the belt change the knocking is more pronounced. Q. How concerned should I be that the knocking is more noticeable?
What to do if your timing belt is not working?
If you have not changed the belt, idler pulley, as well as the tensioner, I highly recommend you do so. A certified professional from YourMechanic can come to your car’s location to perform a timing belt replacement service and any other recommended repairs at your home or office.
Is there a problem with the tensioner belt?
I gained access by only removing the passenger side tire and the two screws that hold the tensioner. There were no apparent leaks but it has an indentention at the end of the piston instead of a rounded end. I took it the a local auto parts store and compared it to a new one. There was a difference in length; about 5 millimeters.
Why does my car make tapping noise when I change the timing belt?
When you changed the timing belt, you replaced the tensioner too, and did what the manual says to set the tension, right? Knocking sounds, usually described as “tapping” sounds, can be caused by valve adjustment problems or lifter problems, if your car uses hydraulic lifters (which I doubt it does).
When do you need to replace a car belt?
Belts installed on vehicles with manual tension drives should be properly tensioned during installation, and re-tensioned after 5 minutes of run-in (30 lbs. per rib). A belt installed incorrectly will make noise and if not remedied quickly, will need to be replaced
When to replace a belt due to misalignment?
Inspect and replace all accessories / pulleys that are difficult to rotate (i.e. rough/seized bearings), or show excessive wobble / free rock Warning: Any existing misalignment condition probably caused pre-mature wear of the belt ribs on the old belt. A new belt is recommended once the accessory drive has been realigned.
What kind of noise does a belt make?
If the noise goes away, it’s a chirp. “Chirp” is a sharp, high-pitched, repetitive noise of short duration, usually worse at low engine speeds (idle). As belt speed increases, the belt noise may blend into one audible noise, but most likely diminish in intensity such that it won’t be detected.