RoadVitals

1991 International Harvester School Bus Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
6
Latest Sep 15, 2003
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
5
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 1991 International Harvester School Bus, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Transmission233.3%
  • Body & structure116.7%
  • Electrical116.7%
  • Engine116.7%
  • Suspension116.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Transmission

Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.

2
reports

From owner reports, verbatim

FRONT TURBINE SHAFT FAILED.(QCAW)

NHTSA ID 529253 · filed Jan 28, 1998

ALLISON TRANSMISSION TORQUE CONVERTER FAILED, CAUSING LOSS OF POWER TO DRIVE AXLE. (1ST VEHICLE ON 502756 & 502757) *SD

NHTSA ID 502755 · filed Mar 28, 1996

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

1
report

From owner reports, verbatim

DRAWSTRING CAUGHT IN BUS HANDRAIL. *DH

NHTSA ID 501628 · filed Feb 15, 1996

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

1
report

From owner reports, verbatim

WIRES TO FUEL SHUT-OFF SWITCH CAUGHT FIRE. *SKD

NHTSA ID 480646 · filed Jan 13, 1995

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

1
report

From owner reports, verbatim

FRONT TURBINE SHAFT FAILED.

NHTSA ID 605840 · filed Jan 22, 1997

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

1
report

From owner reports, verbatim

BUS DEVELOPED A CRACK ON THE RIGHT SIDE BEHIND THE FRONT SHOCK ABSORBERS. CAUSE OF THE CRACK WAS UNDETERMINED. *AK

NHTSA ID 10039973 · filed Sep 15, 2003

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .