1991 Chevrolet S10 Service and Repair Manual
This factory service and repair manual for the 1991 Chevrolet S10 covers a four-engine year — the 2.5-liter overhead-valve four of 151 cubic inches, the 2.8-liter V6 of 173, a 3.1-liter overhead-valve V6 and the 4.3-liter V6 of 262, all naturally aspirated and all gasoline — in standard cab and extended cab pickups. The trims are Base, Baja, Maxi and Tahoe. That spread means the engine mechanical and fuel sections branch by displacement, while the frame, suspension and brake material stays common to both cabs.
Engines covered
- 2.8L V6 (173 cu in) — OHV, naturally aspirated, gasoline
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
- 2.5L inline-four (151 cu in) — OHV, naturally aspirated, gasoline
- 3.1L V6 — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door standard cab pickup
- 2-door extended cab pickup
Trims covered
- Base
- Baja
- Maxi
- Tahoe
Known issues on the 1991 S10. Complaint volume is high for the 1991 truck: 233 entries, and 78 of them are on the service brakes, far ahead of 26 on the engine and cooling system and 21 on seat belts. Brake work is where this manual earns its keep for this year — hydraulic system bleeding, master cylinder and valve checks, drum and rotor specifications, parking brake adjustment and the torque values for every fastener in the assembly, followed by cooling system testing and belt anchorage procedures.
K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FA
WITHOUT THE AMBER SIDE REFLEX REFLECTORS, THE LIGHTING VISIBILITY MAY BE AFFECTED, POSSIBL
K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 20
DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT
DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW
WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW
COLD ENGINE KNOCK. *TW
FRONT DOOR SIDE GLASS BINDING/TRACK DISENGAGEMENT. *TW
OIL PRESSURE GAUGE READING CONCERNS. *TW
CONSUMER WAS DRIVING AND THE FRONT PASSENGER SIDE TIRE BLEW OUT AND TRUCK ROLLOVER FOUR TIMES AT 40 MPH . TT
DRIVER SHOULDER LAP SEAT BELT FAILED AT THE SHOULDER PART, CORONER REPORT STATED THIS FACT. TT
VEHICLE WAS INVOLVED IN A COLLISION. UPON IMPACT, RESTRAINTS DID NOT RETRACT, CAUSING MAJOR INJURIES. DEALER HAS BEEN NOTIFIED.*AK THE CONSUMER AFTER BEING EXAMINED BY A PHYSIC
APPLIED THE BRAKES THE TRUCK KEPT ON GOING WHICH CAUSED AN ACCIDENT. THE TRUCK HIT ANOTHER VEHICLE. THERE IS AN OPEN INVESTIGATION FOR THE ABS EA 94038. *AK
Showing the 4 most serious of 253 complaints filed with NHTSA.
