Steering: hydraulic power assist systemRecall 86V-170 · Chevrolet and GMC vehicles

GENERAL MOTORS CORP. recall 86V-170 covers 9,038 Chevrolet and GMC vehicles for a steering: hydraulic power assist system problem, reported to NHTSA on December 22, 1986.

Vehicles repairedNo manufacturer report yet

Vehicles affected9,0382 models

ReportedDec 22, 1986Owners notified Feb 20, 1987

Complaints since0Same system, after the recall

Source: NHTSA recall 86V170000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

THE POWER STEERING ASSIST CYLINDER MOUNTING BRACKET BOLTS MAY LOOSEN DUE TO PAINT ON THE BOLT THREADS AND THE MOUNTING BRACKET MATING SURFACE. CONSEQUENCE OF DEFECT: THIS MAY RESULT IN LOOSENESS AND ERRATIC STEERING DURING FULL TURNS. WITH CONTINUED OPERATION POWER CYLINDER COULD DETACH FROM THE FRAME RAIL RESULTING IN RESTRICTED STEERING, SEVERING OF FRONT BRAKE HOSE AND LOSS OF FRONT AXLE BRAKING. WITH EITHER CONDITION, A VEHICLE CRASH COULD RESULT.

What to do

The fix

REMOVE PAINT FROM MATING SURFACES OF BRACKET AND FRAME RAIL; REPLACE POWER STEERING ASSIST CYLINDER MOUNTING BOLTS.

SYSTEM: POWER STEERING. VEHICLE DESCRIPTION: MEDIUM DUTY TRUCKS EQUIPPED WITH POWER STEERING AND 12,000 LBS. FRONT AXLES.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

2 models

Vehicles in this recall

Chevrolet C701985, 1986

GMC C71985, 1986

Built from March 1, 1985 to July 1, 1986. Not every vehicle in these model years is included; check by VIN.