- The problem
- Vehicle description: school buses, medium duty trucks and tractors built with bendix air abs with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted abs activation at low speeds caused by 1) chafed abs wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
- The risk
- This condition could cause the abs ecu to exhaust the air at the air brake modulators for one or more of the wheels. This could result in extended braking distances and a possible crash.
- The fix
- DEALERS WILL REPLACE THE ABS ECU.
Vehicle safety record
1998 GMC B7 Problems, complaints & recalls
No owner complaints about the 1998 GMC B7 have been filed with NHTSA. It is covered by 3 recalls, the latest in September 2000 for the antilock.
NHTSA data checked
CAbout as many problems as a typical B7 year, for its age
- Complaints
- 0
- Recalls
- 3
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
1998 GMC B7 recalls 3
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- Vehicle description: school buses equipped with power steering. Some of these vehicles were assembled with an incorrect intermediate steering shaft. The overlap in the slip joint is insufficient allowing the steering shaft to separate.
- The risk
- This could lead to loss of steering, increasing the risk of a vehicle crash.
- The fix
- Dealers will inspect the steering shaft and, if necessary, replace the intermediate steering shaft.
- The problem
- Vehicle description: medium duty trucks equipped with air brakes and anti-lock brake systems. Chaffing of the electric brake control harness can occur resulting in an electrical grounding condition. This will illuminate a warning light on the instrument panel and shut off the abs feature.
- The risk
- This condition can cause reduced braking capability of the front brakes, increasing the risk of a crash.
- The fix
- Dealers will inspect the harness for chaffing and proper routing and will repair if necessary.
What owners say
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No complaints about the 1998 GMC B7 yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
GMC B7: every year compared
All B7 years1998 GMC B7 vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1998 GMC B7 | 0 | 3 | C | |
| 1998 GMC C/K Pickup | 11 | 1 | F | Compare |
| 1998 GMC C Series | 2 | 0 | B | Compare |
| 1998 GMC Blazer | 2 | 0 | B | Compare |
| 1998 GMC C/K Series | 2 | 0 | B | Compare |
| 1998 GMC C10753 | 1 | 1 | - | Compare |
| 1998 GMC C/K 3500 | 1 | 0 | - | Compare |
| 1998 GMC C/K Suburban (GMC) | 1 | 0 | B | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 1998 GMC B7
Does the 1998 GMC B7 have any recalls?
Yes - NHTSA lists 3 recalls for the 1998 GMC B7: antilock (September 2000); gear box (other than rack and pinion) (September 1998); front underhood (April 1998). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 1998 GMC B7 had?
None have been filed with NHTSA so far.
Is the 1998 GMC B7 a reliable vehicle?
Its Safety Index is 43 out of 100 (grade C: about as many problems as a typical GMC B7 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
What should I do if my 1998 GMC B7 has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data