Serpentine Belt Tensioner Pulley May Wear Out on Chevrolet Impala

The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.


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Average mileage: 128,761 (164–250,152)
Engines affected: 3.4L V6, 3.5L V6, 3.8L V6
8 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006, 2010
37 people reported this problem
21 people shared problem details
2000 Chevrolet Impala- 3.4L V6148,000
Makes a loud squealing noise, hard to turn, battery light comes on, and slight burning smell.
2001 Chevrolet Impala- 3.8L V6150,000
pulley bad,shredded my serpentine belt.
2005 Chevrolet Impala- 3.8L V6172,426
Strange noise under hood with smoking.tried to reverse car back a little and then the belt the runs alternator, ac, etc breaks and then the car locks up meaning steering wheel get hard high temp sign comes on. Etc
its has happened to my car 4 or 5 times in the pasted 2years.. same part keeps breaking... and fan belt falls off... my mechanic cant figure it out... should I bring to chevy dealer is it warrenty
Tensioner Pulley locked up and shredded the serpentine belt. Easy fix
2003 Chevrolet Impala- 3.4L V622,450
Just bought my 2003 chevy impala from a private dealer, it only has 22,000 miles on it but was a salvaged title. Three days after purchasing the vehicle I noticed a loud screechy/grinding noise coming from under the hood. I've only noticed it do it a few times since yesterday, not at all times but it's really loud and annoying so we checked under the hood and it seems to be coming from the belt. I'm going to get it looked at on Monday to see what for sure needs to be replaced.
2002 Chevrolet Impala- 3.4L V6125,000
2002 Chevrolet Impala- 3.8L V6135,496
Tensioner pulley froze up and belt broke. Replaced TENSIONER PULLEY and serpentine cost was $156.12. Thought it was a little high but the weather was cold (15 degrees) and I didn't want to be outside working on it. You should be able to buy a replacement pulley for $35/45 and time to change requires about 1/2 to 3/4 hour. If weather was warmer I could have saved $100 plus by doing it my self.
2005 Chevrolet Impala- 3.4L V6178,000
same thing happened to me, the pulley assembly became loose and as I was driving the engine would shut off from loss of power at stop lights. had it replaced today and it runs new.. the spring wore out in the old assembly.
2010 Chevrolet Impala- 3.4L V6111,343
Making a noise
2003 Chevrolet Impala- 3.8L V6153,000
Squeeling belt tensioner pulley
2010 Chevrolet Impala- 3.4L V670,000
Fan belt squeezing Holiday Oldsmobile said I needed a fanbelt and tensor
2000 Chevrolet Impala- 3.8L V6200,000
Belt has broken twice and come off 3 times. Mechanic told us it was popwer steering pump had it replaced and still happens
2006 Chevrolet Impala- 3.4L V6165,000
I've never had to many problems with my impala beside this pulley problem.
2000 Chevrolet Impala- 3.8L V6166,666
Dumb pulley came off. Smelt burning and power gave out while driving.
2004 Chevrolet Impala- 3.4L V6220,000
The car just dies. When started up it screeches and there is alot of smoke. The battery is new but is dead have to jump start it.
2001 Chevrolet Impala- 3.8L V6179,052
Serpentine belt snapped, after about 2 months of an on-again/off-again squeal. Shop said it was because the tensioner pulley had seized, and had to replace the pulley and the belt.
pulley actually jumped out of socket too far and off belt so I had no power steering at all
I have changed my serpentine belt 2 times the first at 35000 miles and again at 70M + miles but never the pulley
2001 Chevrolet Impala- 3.4L V640,000
Belt is squeeking and the pulleys are loose.
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