Source reference 2001-01-02

Manufacturer communication — 1998 GMC YUKON

Reporter type: Manufacturer

Vehicles as recorded

1998 GMC YUKON
1999 GMC YUKON
2000 GMC YUKON This vehicle's overview →
2001 GMC YUKON This vehicle's overview →
1998 GMC YUKON XL
1999 GMC YUKON XL
2000 GMC YUKON XL This vehicle's overview →
2001 GMC YUKON XL This vehicle's overview →

What the manufacturer’s document says

fault and correction ・ names this vehicle

Applies to

On 1998-2001 Silverado, Sierra, Tahoe, Suburban, Yukon and Yukon XL, the steering wheel may shake violently or vibrate at road speed after driving 10 or more miles.
the passage
On 1998-2001 Silverado, Sierra, Tahoe, Suburban, Yukon, and Yukon XL, the steering wheel may shake violently or vibrate at road speed after driving 10 or more miles.

Fault

The condition may get worse the longer the vehicle is driven and may be aggravated by applying the brake.
the passage
The condition may get worse the longer the vehicle is driven, and may be aggravated by applying the brake.
The customer may say the shake or vibration started in the steering wheel and then spread throughout the truck as they continued to drive.
the passage
The customer may advise that the shake or vibration started in the steering wheel and then spread throughout the truck, as they contin- ued to drive the vehicle.

Finding the cause

Steps to confirm (in the document’s order)

When the concern is duplicated, place your left foot under the brake pedal and lift up on the pedal.
the passage
When the concern is duplicated, place your left foot under the brake pedal and lift up on the pedal.
If the concern remains, continue with vibration diagnosis as noted in the service manual.
the passage
If the concern remains, continue with vibration diagnosis as noted in the service manual.

Correction

Repair

If the shake or vibration goes away, replace the brake booster assembly.
the passage
If the shake or vibration goes away, replace the brake booster assembly.

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

Communication summary
Japanese translation not processed yet.
Intermittent Violent Steering Wheel Shake, or Vibration at Road Speed On 1998-2001 Silverado, Sierra, Tahoe, Suburban, Yukon, and Yukon XL, the steering wheel may shake violently or vibrate at road speed after driving 10 or more miles. The condition may get worse the longer the vehicle is driven, and may be aggravated by applying the brake. The customer may advise that the shake or vibration started in the steering wheel and then spread throughout the truck, as they contin- ued to drive the vehicle. When the concern is duplicated, place your left foot under the brake pedal and lift up on the pedal. If the shake or vibration goes away, replace the brake booster assembly. If the concern remains, continue with vibration diagnosis as noted in the service manual.
Go to this passage in the original

Source

Source: GM TechLink
Source reference: 2001-01-02
Received by source: 2001-01-01
Incident date: Unknown

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