Fan belt is squealing

Asked by Camby1151 Apr 16, 2019 at 07:08 AM about the 1969 Pontiac Firebird Coupe

Question type: Maintenance & Repair

When I run through the gears, as the RPMs increase, my fan belt begins to squeal. Even on the highway in 4th gear if I get on it, it will squeal. The tension is correct (I don't think it should be any tighter) and the belts and pulleys are near new condition.
Any thoughts to correct it?

1 Answer
101,595

KenF answered 5 years ago

Does the fan have a clutch? Some of those older heavier fans would resist abrupt changes in RPM that could cause belt slippage and resultant squealing. Assuming your belt is properly aligned and tightened, you may want to consider a lighter fan. Switching to a clutch fan may also help, it allows the fan to spin up to speed without the abrupt RPM change. Bur before any of that I would triple check the alignment of the pulleys. You could also take an emery cloth to the pulleys to ensure they offer some traction to the belt.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Fan belt is squealing 1 Answer

    When I run through the gears, as the RPMs increase, my fan belt begins to squeal. Even on the highway in 4th gear if I get on it, it will squeal. The tension is correct (I don't think it should be any...

    1969 Pontiac Firebird Coupe

    -

    Maintenance & Repair

  • My belt squeals when my heater is on.. 7 Answers

    When i put the heat on the belt squeals.. its a brand new belt.. what would cause that..

    1992 Pontiac Firebird Base

    -

    Maintenance & Repair

  • electric cooling fan 2 Answers

    my elec fan does not turn on when cart reaches the temp when its supposed to turn on. I can turn on the A/C and ther fan works great. Im looking to see if the ecm is bad or wiring is bad. any iodeas?

    1989 Pontiac Firebird STD

    -

    Maintenance & Repair

  • what is the correct battery for the 1995 Firebird 4.0 3 Answers

    I am considering restoring my 1995 Firebird and need a new battery. The car has not run for about 5 years so I want to get the right battery to start with. I do hope the car is worth restoring because...

    1995 Pontiac Firebird Base

    -

    Maintenance & Repair

  • What does it mean when a fan motor has two poles? 1 Answer

    I was looking for a cooling fan for my car and I came across couple of options and one of the fans in the discretion said it had two pole and had not heared of that so I was wondering what that m...

    1992 Pontiac Firebird Base

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Firebird Questions

CarGurus Experts

  • #1
    Samuel Moore
    Reputation
    1,590
  • #2
    taver91
    Reputation
    1,320
  • #3
    Paul Martin
    Reputation
    1,270
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
16 Great Deals out of 467 listings starting at $10,995
Used Chevrolet Corvette
28 Great Deals out of 765 listings starting at $15,900
Used Ford Mustang
38 Great Deals out of 1,626 listings starting at $8,995
Used Pontiac GTO
5 listings
Used Dodge Challenger
31 Great Deals out of 781 listings starting at $11,480
Used Dodge Charger
33 Great Deals out of 901 listings starting at $5,995
Used Chevrolet Monte Carlo
5 listings starting at $9,800
Used Pontiac Grand Prix
3 listings
Used Porsche 911
18 Great Deals out of 239 listings starting at $22,980
Used Chevrolet Impala
5 Great Deals out of 131 listings starting at $3,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.