Question about 1999 GMC Suburban
1997 4x4 Diesel Suburban driving at any speed will suddenly veer to the left, I have to hold the steering wheel the other way to compansate, after slowing right down and making a hard right turn there is a loud clunk and the steering go straight again. I have changed the steering column sensor. A friend suggest that the 4 wheel drive is trying to engage? Help please Cheers Doug
I doubt it's your 4x4. Most transfer case will start turning the front driveshaft, meaning that BOTH front wheels would try to turn.
Could be a brake pad/caliper locking up on your left wheel. That'll make that wheel turn slower resulting in the veering left.
Could also be a wheel bearing. However usually you'll hear a grinding noise to go along with that. And it'll pull rather consistently in that direction rather than suddenly.
Or, what first comes to mind is that your steering box is loose, or the gear inside the steering box is stripped in one spot. Or your front tie rods could be shifting or possibly ball joints. These would cause a sudden shifting/veering.
All of these things are front end related. And also very dangerous. Take it down to any alignment shop, have them put it on a lift, and diagnose immediately.
Worse case scenerio is that a front end part breaks and sends you out of control and into someone else. Please get it checked. A diesel Suburban could do a lot of damage.
Posted on Feb 10, 2009
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