The worst 1999 Navistar 4800 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 2
Service brakes, air
- What is wrong
- Vehicle description: heavy duty trucks. There is interference between the air brake s-cam and the end of one of the knuckle studs. As the brake shoe lining wears, the s-cam rotation may be limited by the interfering knuckle stud. If the s-cam can not rotate through its full range of motion, the braking force can not be fully transmitted from the brake shoe linings to the brake drums.
- Risk
- This could result in a longer stopping distance or a dragging brake condition.
- Remedy
- Dealers will shorten the interfering knuckle stud to eliminate the clearance problem.
Recall number 99V351000 · Recall details
Service brakes, air
- What is wrong
- Vehicle description: heavy duty trucks, transit and school buses, equipped with meritor air brake automatic slack adjusters. Some of the automatic slack adjusters had insufficient torque applied to the guide pawl cap screw.
- Risk
- Without sufficient torque on the guide pawl cap screw, the brakes could gradually lose adjustment, increasing the vehicle stopping distance.
- Remedy
- Dealers will check the torque on the automatic slack adjuster guide pawl. If there is no torque, the brakes will be adjusted and the guide pawl will be tightened to 15-20 ft. Lbs.
Recall number 99V055001 · Recall details
Technical service bulletins for the 1999 Navistar 4800 2
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
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Questions about the 1999 Navistar 4800
Is the 1999 Navistar 4800 reliable?
Owners have filed 0 complaints about the 1999 Navistar 4800.
What is the most common problem with the 1999 Navistar 4800?
There are not enough complaints to tell.
How many recalls does the 1999 Navistar 4800 have?
2 recalls, covering service brakes, air.
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