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1986 International Harvester S Series

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

No component reports in this snapshot.

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 0 of 0 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

What owners actually said

0 reports

No matching complaints in this snapshot.

Official recalls

4

87V005000 · Electrical System:alternator/generator/regulator

Jan 29, 1987

ENGINE AND BRAKE BACKUP SYSTEM HAVE COMMON ELECTRICAL POWER SOURCE; ENGINE COULD DIE FROM ELECTRICAL FAILURE OF THE MAIN POWER FEED FROM THE ALTERNATOR.

Consequence & remedy

Consequence: THIS COULD RESULT IN BRAKE FAILURE WHICH COULD RESULT INA CRASH WITHOUT PRIOR WARNING.

Remedy: SEPARATE ENGINE AND BRAKE BACK UP CIRCUITS.

86V085000 · Service Brakes, Air:supply:hoses, Lines/piping, And Fittings

Jul 1, 1986

TRUCK TRACTOR TO TRAILER HOSES INSTALLED ON THESE TRUCKS MAY NOT MEET ADHESION REQUIREMENTS OF FMVSS 106, HYDRAULIC BRAKE HOSES. THE HOSE OUTER COVER AND BRAID DID NOT WITH STAND TENSILE FORCE REQUIRED BY THE STANDARD. CONSEQUENCE OF DEFECT: THE HOSE MAY FAIL CAUSING PARTIAL LOSS OF BRAKING CAPABILITY WHICH COULD LEAD TO A CRASH IF ALL WARNINGS RELATED TO POSSIBLE HOSE FAILURE WERE TO GO UNHEEDED.

Consequence & remedy

Consequence: Not supplied

Remedy: REPLACE HOSE ASSEMBLY IF OF THE SUSPECT DATE CODE.

86V052000 · Seat Belts:front:anchorage

Apr 8, 1986

THE SEAT BELTS LOOSEN AS TRUCK IS DRIVEN. THE NON LOCKING RETRACTOR TAKES UP ANY BELT SLACK, GIVING FALSE IMPRESSION THAT THE BELT IS STILL TIGHT. CONSEQUENCE OF DEFECT: THE DEFECT CAN INCREASE THE POSSIBILITY OF INJURY TO THE BELT WEARER IN EVENT OF A VEHICLE CRASH.

Consequence & remedy

Consequence: Not supplied

Remedy: REPLACE INBOARD DRIVER AND PASSENGER SEAT BELT HALVES WITH LONGER BELTS THAT ASSURE PROPER LOCKING ANGLE BETWEEN BELT WEBBING AND BUCKLE.

86V046000 · Fuel System, Gasoline:fuel Injection System

Mar 21, 1986

THE FUEL INJECTION PUMP THROTTLE SHAFT BUSHING MAY BE CONTAMINATED WITH A HEAT SENSITIVE LIQUID POLYMER WHICH CAN SOLIDIFY ON THE BUSHING AT NORMAL ENGINE OPERATING TEMPERATURE AND CAUSE THE THROTTLE TO STICK. CONSEQUENCE OF DEFECT: THROTTLE LEVER MAY STICK AND NOT RETURN TO LOW IDLE POSITION AFTER ACCELERATOR PEDAL IS RELEASED. THIS COULD RESULT IN LOSS OF VEHICLE CONTROL AND LEAD TO A VEHICLE CRASH WITHOUT PRIOR WARNING.

Consequence & remedy

Consequence: Not supplied

Remedy: REPLACE FUEL INJECTION PUMP GOVERNOR HOUSING WITH A NEW HOUSING CONTAINING NEW BUSHINGS FREE OF CONTAMINATION.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

PE88082 · Sudden Acceleration

Opened Jul 18, 1988 · Closed Nov 3, 1988

Status: closed (inferred from source dates) · Vehicle Speed Control:linkages

SUMMARY: SCHOOL DISTRICT REPORTS FOUR INCIDENCES OF UNWANTED ACCELERATION HAVE OCCURRED DURING THE PAST 12 MONTHS. PREVIOUS INCIDENCES WERE THOUGHT TO HAVE BEEN DRIVER ERROR, BUT TRANSPORTATION SUPERVISOR NOW BELIEVES FURTHER EVALUATION IS NECESSARY.===