Why does my 1999 suburban shudder at high speed?

timparker
0

Asked by timparker Nov 02, 2012 at 10:51 PM about the 1999 Chevrolet Suburban C1500 LT

Question type: Maintenance & Repair

My Suburban started to shudder slightly last year.  I replaced all four tires but it still shuddered between
65-75.  Recently the left front wheel bearing failed and I had them replaced as well as the front brakes
and re-packed the other wheel bearings.  I also had all four tires re-balanced by two different tire dealers
and had the car aligned.  Same problem.  Tearing out what little hair I have.

11 Answers

John Saffrahn
19,125

Sounds like someone may have installed the rotors improperly. Its a delicate procedure and lots of people don't realise it. It could be something else also.

gustang
725

Other things to check are your shocks & motor mounts.

John Saffrahn
19,125

Explain

John Saffrahn
19,125

Drive shaft counter weights may have busted off as well.

gustang
725

Worn shock(s) can cause tires to vibrate at certain speeds. A broken motor mount will cause the engine to vibrate.

John Saffrahn
19,125

On a small car i can see the shocks possibly causing the vehicle to shake but the suburban is probably close to 6000 lbs and that alone will prevent the tires from vibrating on a smooth road. The vibration is relative to vehicle speeds not engine so that would rule out motor mounts.

gustang
725

These were just suggestions. Go Luck.

timparker
0

Thank you all. I'll have the motor mounts checked anyway and then change out the shocks. If that doesn't work it's going in the lake.

Keegan Martin
315

It could be the u-joint or joints in the drive shaft. Does the vibration go away when you take your foot off the gas and coast?

Bryan Walsh
0

I have same problem between 65 and 75 mph, U joints were checked, vibration happens with pedal on or coasting, buddy thinks its the drive shaft

Dkvg
0

check the rims my parents 1979 chevy sub had 2 bent wheels that never showed up during a wheel balance they replaced all 4 rims and it worked fine

Your Answer

Add photo

Related Questions

Suburban
Looking for a Used Suburban in your area?
CarGurus has 13,743 nationwide Suburban listings starting at $2,488.
ZIP:

Search Chevrolet Suburban Questions

Chevrolet Suburban Experts

#1 Eric Fritz
Eric Fritz
Reputation 590
#2 John Saffrahn
John Saffrahn
Reputation 410
#3 Tom Demyan
Tom Demyan
Reputation 350
View All

Related Models For Sale

Used GMC Yukon XL"
199 Great Deals out of 8,221 listings starting at $3,988
Used Toyota Land Cruiser"
22 Great Deals out of 917 listings starting at $7,918

Used Cars For Sale

2015 Chevrolet Suburban For Sale
48 Great Deals out of 5,084 listings starting at $42,000
2014 Chevrolet Suburban For Sale
41 Great Deals out of 1,150 listings starting at $28,609
2013 Chevrolet Suburban For Sale
15 Great Deals out of 644 listings starting at $25,500
2012 Chevrolet Suburban For Sale
18 Great Deals out of 458 listings starting at $20,990
2011 Chevrolet Suburban For Sale
38 Great Deals out of 781 listings starting at $17,900