Started with a chirping/squealing noise. I changed the belt. Noise continued so I changed the belt tensioner. Noise continued so I changed the pulley. This time noise was chirping with a high pitched hum (think dog whistle).
Took it to two mechanics and they reported pulleys in-line and could not find problem. I then changed the alternator. I was advised by a non mechanic that he had same issue with high pitched noise and alternator swap fixed it. Noise continues.
Currently the noise is present at start and at acceleration and then noise goes away after 15 minutes when the engines hits it's normal temperature. Took it to another mechanic and confirmed that the pulley, belt tensioner, belt , alternator and water pump are all new and could not find the source of the noise.
At this point the only other two pulleys are the harmonic balancer and the power steering pump pulley. However, I have no issues steering, although the fluid was very low but the dipstick was not completely dry. I refilled reservoir.
Should I change the harmonic balancer given the miles this van has? Should I change the power steering pump pulley? I am at a loss. Three mechanics and still no fix.
Took it to two mechanics and they reported pulleys in-line and could not find problem. I then changed the alternator. I was advised by a non mechanic that he had same issue with high pitched noise and alternator swap fixed it. Noise continues.
Currently the noise is present at start and at acceleration and then noise goes away after 15 minutes when the engines hits it's normal temperature. Took it to another mechanic and confirmed that the pulley, belt tensioner, belt , alternator and water pump are all new and could not find the source of the noise.
At this point the only other two pulleys are the harmonic balancer and the power steering pump pulley. However, I have no issues steering, although the fluid was very low but the dipstick was not completely dry. I refilled reservoir.
Should I change the harmonic balancer given the miles this van has? Should I change the power steering pump pulley? I am at a loss. Three mechanics and still no fix.
Nov 10, 2020 at 7:36 AM





