Last post on May 19, 2013 at 7:23 AM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Truck
#355 of 375 Re: Vibration [crusin57]
Aug 23, 2010 (1:51 pm)
Thanks Crusin, GMC installed two new tires, Goodyear, and it made the vibration less but not good. I have a 6 speed tans. and when in gear I just let up on the brakes I can feel a similar shake, its not the brakes. I suspected the engine could be running rough in cruise but taking the truck out of gear still has vibration so it must be in the trans, wheels, drive train.
I had similar balance issues also but of the six times the dealer found it was out of balance each time!!!!! so I had them go to a tire dealer that has done excellent balance on my two Lexus and again he found them way out but his balance didn't really make it much better. One of the delaer reps said they corrected a similar condition with Michelan tires but they refuse to put them on my new truck,
#356 of 375 Re: Vibration [propellers]
Aug 23, 2010 (3:49 pm)
Wow i'm sure your frustrated, just like alot of other member's on here for different reason's. I think honestly it's the tires. I say that because you run 20's on it from the factory. That's alot of rotating mass, you did say it smooths itself out at about 90 mph, can you imagine how fast that tire is rotating. This is why i think it's crap tire's. I don't know how fast a tire machine will rotate for a balance but it might only be 60 or 70 relating to a highway speed.Have you swapped from front to back to see if the vibration follow's the tire's. I mean it might help with eliminating or at least maybe realizing that it is the tire's.
#357 of 375 Re: Vibration [crusin57]
Aug 27, 2010 (6:04 am)
Thanks Crusin, The truck is a 4WD and so there is additonal rotating mass such as all the junk from the trans to the front wheels. The vibs may also be from the drive shafts out of balance. The only way I know to check this is to put the truck on a lift, put in gear and put a piece of chalk up to the drive shaft and see if it runs true..anyone else have any ideas to check runout or imbalance of the shaft without removal?
#358 of 375 Re: Vibration [propellers]
Nov 17, 2010 (3:35 pm)
Hello, don't know if you solved your vibration problem, I have an 09 crew cab sierra 2 wheel drive, beent dealing with the balance issue since I bought the truck 2 months ago. Had the tires balanced 4 times in a month, worked excellent for about 2 days and then the bounce back. So I decided to test myself, marked the rim and tire with a line, took off out of my street with a little more than a standard take off and drove approx. 10 miles and check the line. MOVED 3 INCHES!! Marked again, took off normal and from around 35mph. went into passing gear and back down to normal, pulled into gas station and checked, WOW 3 MORE INCHES!!! So I found the problem with the continuous balance issue, now the dealer has the luxury of solving the $&#! problem. My dealer is approx 45 min. from home so I'm tired of traveling back and forth, not to mention my family getting a kick out of talking like their face is glued to a box fan, just makes you feel great about the new car experience!
#359 of 375 Re: Vibration [nbcokeman]
Nov 24, 2010 (1:40 pm)
Have you had your vehicle back to the dealer since you did your own test? I would definitely recommend speaking with them. Please keep me update on your situation.
GM Customer Service
#360 of 375 Tranny problems....
Nov 27, 2010 (3:40 pm)
I have a 2004 chevy silverado crew cab z71. I was driving down the road and all of a sudden the truck came out of gear. I coasted to the side of the road, put in park, then put back in drive and the truck had the gears again until i let off the gas. I made it home and tried to put the truck in park and a loud rudder type sound came from the transfer case and or transmission and then the truck didnt have any gears at all and wouldnt go in park. Any possible solutions??
#361 of 375 Re: Tranny problems.... [chevy8729]
Nov 27, 2010 (5:55 pm)
It may be too late but have you checked the level of trans fluid and/or the color?
#362 of 375 heater not blowing
Nov 28, 2010 (5:11 am)
bought truck alittle over month ago heat on but not blowing out..any answer to help a cold female out there brrrrr
#363 of 375 Re: heater not blowing [shandalynn]
Jan 02, 2011 (7:51 pm)
If you can tell that the blower is on, and there is no air flow out of any vents, regardless of mode switch position, maybe the cabin air filter is plugged up. That was the problem when I bought my GMC Sierra. The filter is accessed from the floor area, behind the glove box. You need to drop the plastic shield from below the blower, remove the plastic strip/cover securing the filters (there are two) and pull them down, one at a time. They're available at PepBoys, Napa, etc.
#364 of 375 AC conversion on 01 Sierra
Jan 02, 2011 (8:11 pm)
I just converted the manual AC to auto AC on my 01 Sierra. It was suprisingly straight forward, and something that anyone could do who had patience and some tools, (and the factory service manual.) I got most of the parts at the wrecking yard, but they are all still available from the dealer. I've also added the steering wheel audio switches. The switches are only about $50.00 new, though the SIR clockspring was about $180.00. Very straight forward conversion, too.