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1997 Chevrolet Blazer Vibration

Tiny
LIONSFAN112000
  • MEMBER
  • 1997 CHEVROLET BLAZER
I have a 97 Chevy Blazer 4wd w/4.3litre and the mileage is at 169000. I have had the truck for a short while and don't really know any history of this truck. The problem I am having is a vibration when I am accelerating. You can feel it more when speed is around 55mph or more. When driving at higher speeds the vibration goes away when I take my foot of the accelerator. There is probably a list of things that it could be, but where should I start?
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Wednesday, June 13th, 2007 AT 9:51 AM

5 Replies

Tiny
TOYPAR
  • MEMBER
  • 12 POSTS
That could be ALOT of things. I would start at the drivetrain, Bent rim, wheel balance, tire pressure, tire coindition, differential, now the motor, Diagnose the igntion system could be a bad plug, plug wire, cap, rotor, coil or timing. Fuel pressure, harmonic balancer, crank pulley, tensioner pulley and idler pulley. Good luck.
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Tuesday, June 26th, 2007 AT 9:16 AM
Tiny
MAPLELEAF_NUT
  • MEMBER
  • 1 POST
Lionsfan112000. Have you had any luck troubleshooting this problem.I have the same vechicle. With approx the same milage. And also the same problem. It vibrates at around 80-90 km/h for a little while. When I cruise up at 100-110km/h. All the vibration goes away. Also. When it vibrates. If I let off on the gas. It goes away. It only vibrates under power. Sounds very similar to your problem. I am suspecting the transmission. But I would really like to know how you have made out at your end.
Thanks
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Monday, July 16th, 2007 AT 8:48 PM
Tiny
CHEVY22
  • MECHANIC
  • 1,375 POSTS
CHECK THE U JOINTS AND THE CARRIER BRG BEFORE ANY MAJOR REPAIR THE CARRIER BRG IS AT THE SLPIT OF THE FRT AND REAR DRIVESHAFT

JIM
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Sunday, July 22nd, 2007 AT 8:27 AM
Tiny
WHATEVER987987
  • MEMBER
  • 1 POST
Check out the u joints first. I've heard that to actually work from what sounds to be the same problem. I have the same problem now and will let u know how it goes soon as I get money to try.
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Wednesday, April 3rd, 2013 AT 2:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
U joints are the first stop here. I bet one is either locked up or very loose

Roy
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Saturday, April 20th, 2013 AT 7:53 AM

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