Maintenance Information (syclone & Typhoon) GMC Sonoma Syclone

MODEL IDENTIFICATION

Note. For scheduled maintenance intervals and the related fluid capacities, fluid specifications and labor times for major service intervals, see SCHEDULED SERVICES article in this section. Warranty information and specifications for fluid capacities, lubrication specifications, wheel and tire size, and battery type are covered in this article.

VIN LOCATION

The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the code characters.

SERVICE PARTS IDENTIFICATION LABEL

Label is located inside glove box door and has the vehicle's VIN, wheelbase, paint information, and a list of all production options and special equipment.

VIN CODE ID EXPLANATION

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN example below.

VIN Code ID Explanation. Scheme 5

SEVERE & NORMAL SERVICE DEFINITIONS

Note. Use the Severe Service schedule if the vehicle to be serviced is operated under ANY (one or more) of these conditions

Service is recommended at mileage intervals based on vehicle operation and time in service. Manufacturer's Schedules identify items to be serviced based on type of operation. Service schedules are based on the following primary operating conditions

Severe Service

1. Short Trips (4 Miles Or Less)
2. Most Trips Are Less Than 10 Miles When Outside Temperatures Are Below Freezing
3. Towing Or Heavily Loaded
4. Severe Dust Conditions
5. Hot Weather, Engine Is At Low Speed Most Of The Time (Stop-And-Go Driving)
6. Extensive Idling Conditions (Taxi Or Delivery Type Service)
7. Freezing Temperatures

Normal Service

1. No Severe Service Operating Conditions

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Note. For more information regarding jacking or hoisting the vehicle, refer to the JACKING & HOISTING article in the WHEEL ALIGNMENT section.

PCV SYSTEM INSPECTION INFORMATION

Check that Positive Crankcase Ventilation (PCV) system works properly. Replace the valves and any worn, plugged or collapsed hoses as necessary.

ELECTRONIC VACUUM REGULATOR VALVE INSPECTION INFORMATION

Inspect filter for excessive contamination or plugging. If required, clean element with a solution of biodegradable soap and water, let dry and reinstall element.

CHASSIS LUBRICATION INFORMATION

Chassis components requiring lubrication include the following: front suspension, steering linkage, transmission shift linkage, parking brake cable guides, rear driveshaft, front driveshaft rear joint centering ball, u-joints and brake pedal spring.

WHEEL & TIRE SPECIFICATIONS

Wheel and tire information can be found on the Certification/Tire label attached to rear of driver's door or door pillar.

TIRE CHAINS

TIRE ROTATION

Tires used on this vehicle are directional and require special rotation procedures. The front and rear wheels have different offsets, so tires must be removed from wheels for rotation. Dismount tires and reinstall on appropriate wheels ensuring tire rotation is correct. There are arrows on tire sidewall indicating rotational direction. Balance wheel and tire assembly before installing on vehicle.

WHEEL SIZE

Replacement wheels should match originals in load limit, diameter, width, offset, and mounting configuration. The wrong wheel can cause difficulty with bearing life, brake cooling, speedometer/odometer calibration, stopping ability, headlight aim, bumper height, vehicle ground clearance and tire or tire chain clearance to body and chassis.

WHEEL TIGHTENING

Tighten lug nuts on all wheels to 100 ft. lbs. (140 N.m).

BATTERY SPECIFICATIONS

ANTI-LOCK BRAKE SYSTEM

The anti-lock brake system contains electronic equipment that can be susceptible to interference caused by improperly installed or high output radio transmitting equipment. Since this interference could cause the possible loss of the anti-lock braking capability, such equipment should be installed by qualified professionals.

On models equipped with anti-lock brake systems, ALWAYS observe the following cautions

1. DO NOT attempt to bleed hydraulic system without first referring to the appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES Section.
2. DO NOT mix tire sizes. As long as tires remain close to the original diameter, increasing the width is acceptable. Rolling diameter must be identical for all 4 tires. Some manufacturers recommend tires of the same brand, style and type. Failure to follow this precaution may cause inaccurate wheel speed readings.
3. Use ONLY recommended brake fluids. DO NOT use silicone brake fluids in an ABS-equipped vehicle.

FOUR WHEEL ANTI-LOCK BRAKE SYSTEM

On models equipped with anti-lock brake systems, ALWAYS observe the following cautions

1. DO NOT attempt to bleed hydraulic system without first referring to appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES Section.
2. DO NOT mix tire sizes. As long as tires remain close to the original diameter, increasing the width is acceptable. Rolling diameter must be identical for all 4 tires. Some manufacturers recommend tires of the same brand, style and type. Failure to follow this precaution may cause inaccurate wheel speed readings.
3. Use ONLY recommended brake fluids. DO NOT use silicone brake fluids in an ABS-equipped vehicle.

BATTERY WARNING

REPLACING BLOWN FUSES

BRAKE PAD WEAR INDICATOR

CATALYTIC CONVERTER

CHARGE AIR COOLING SYSTEM

The 4.3L turbocharged engine is equipped with a charge air cooling system. It cools the hot intake air produced by the turbocharger. Vehicle is equipped with a turbo boost gauge and a LOW TURBO COOLANT warning light on the instrument panel.

The charge cooling system is separate from the engine cooling system. It uses the same type of engine coolant. The system consists of a charge cooler with tank, coolant recovery tank, hoses, electric pump and separate radiator. The charge coolant tank has its own cap and is filled though the charge coolant tank.

If LOW TURBO COOLANT warning light comes on while driving, coolant needs to be added to system. System should be checked for leaks or damage.

COOLANT (PROPYLENE-GLYCOL FORMULATIONS)

To avoid possible damage to vehicle use only ethylene-glycol based coolants with a mixture ratio from 44-68% anti-freeze. DO NOT use 100% anti-freeze as it will cause the formation of cooling system deposits. This results in coolant temperatures of over 300° F (149°C) which can melt plastics. 100% anti-freeze has a freeze point of only -8° F (-22°C).

ELECTROSTATIC DISCHARGE SENSITIVE (ESD) PARTS

ENGINE OIL

FUEL SYSTEM SERVICE

HALOGEN BULBS

OFF-ROAD DRIVING

The Syclone and Typhoon are not designed or intended for off-road driving. Driving off-road could seriously damage the underbody, chassis and fascia of the vehicle.

RADIATOR CAP

RADIATOR FAN

TURBOCHARGED MODELS

WARRANTY INFORMATION

BUMPER-TO-BUMPER PLUS COVERAGE LIMITED WARRANTY

Entire vehicle (except battery) is covered for 3 years or 50,000 miles, whichever occurs first. Covered by this warranty are any repairs to vehicle components which have proven defective in material and workmanship under normal use (tires excluded). Warranty repairs (parts and labor) will be made by the Dealer at no charge using new or remanufactured parts. This warranty is subject to a 100 deductible for each repair visit after the first year or 12,000 miles, whichever occurs first.

Note. 1992-93 Models are covered for 3 years or 36,000 miles, whichever occurs first, with no deductible.

BATTERY COVERAGE

Covers replacement cost of battery for 3 years or 50,000 miles (36,000 miles on 1992 models), whichever occurs first. A prorated charge applies after first 12 months or 12,000 miles, whichever occurs first.

CORROSION COVERAGE

Covers any body sheet metal panel that is perforated due to corrosion. Coverage is for 6 years or 100,000 miles, whichever occurs first.

EMISSIONS "DEFECT" & "PERFORMANCE" WARRANTIES (EXCEPT CALIFORNIA)

Defect Warranty ensures vehicle meets applicable EPA regulations and that emission control system is free from defects in materials and workmanship. Coverage is for a period of 5 years or 50,000 miles, whichever occurs first.

Performance Warranty covers all costs of repairing or adjusting any components or parts as needed in order for the vehicle to pass a federally-required state or local emissions test. Other emission control parts related to these components are covered by the Performance Warranty, where applicable. If another part fails due to the failure of one of these components, both parts are covered. See customer's copy of warranty information for specific items covered.

EMISSION "PERFORMANCE" WARRANTY (CALIFORNIA)

If vehicle fails a Smog Check inspection, all necessary repairs and adjustments will be made by manufacturer to ensure vehicle passes inspection. Coverage is for 3 years or 50,000 miles, whichever occurs first.

EMISSION "DEFECT" WARRANTY (CALIFORNIA)

If any emission-related part on the vehicle is defective, the part will be repaired or replaced by manufacturer. Coverage is for 3 years or 50,000 miles, whichever occurs first.

Some emission-related parts are covered for 7 years or 70,000 miles, whichever occurs first, and will be repaired or replaced by manufacturer if found to be defective in material or workmanship. See customer's copy of warranty information for specific items covered.

FUSE PANEL LOCATION

The fuse block is located under the instrument panel to the left of the steering column.

Scheme 20

Fuse & Circuit Breaker Identification

1. 1 - Inst-Lps 5 Amp - Instrument Panel Lights, Headlight Warning Buzzer, Rear Defogger Switch Light, Ashtray Light, Rear Wiper Switch Light, Foglight Switch Light
2. 2 - Pwr-Accy 30 Amp (Circuit Breaker) - Power Door Locks & Rear Defogger, Console Accy. Receptacles (Typhoon), CD Player (If Equipped), Power Seat (If Equipped)
3. 3 - Horn-Dim 20 Amp - Horn, Clock & Lighter, Dome & Glove Box Lights, Courtesy & Vanity Mirror Lights, Liftgate Release Solenoid (If Equipped), Fog Lights (1991), Outside Rearview Mirror
4. 4 - Ign-Gau 20 Amp - Indicator Lights & Gauges, Rear Defogger Relay & Timer, A/T Converter Clutch & Cruise Control, Seat Belt Timer (If Equipped), A/C Compressor Timer (If Equipped)
5. 5 - Brake 15 Amp - Four Wheel Anti-Lock Brake Module, Digital Ratio Adapter Module, Speedometer, Auto. Trans. Converter Clutch
6. 6 - Stop-Haz 15 Amp - Stoplights & Hazard Warning Lights, Chime Module
7. 7 - T/L-Ctsy 20 Amp - Light Switch, Taillights & Parking Lights, Courtesy Lights
8. 8 - Turn-B/U 15 Amp - Turn Signal & Back-Up Lights
9. 9 - Htr-A/C 25 Amp - Heating & A/C
10. 10 - Radio 15 Amp - Radio, Tachometer, Rearview Mirror Map Lights, Rear Wiper & Washer, Compass (1993)
11. 11 - ECM B 10 Amp (Exc. 1993) - 15 Amp (1993) - Electronic Control Module, Fuel Pump
12. 12 - ECM I 10 Amp - Electronic Control Module
13. 13 - Pwr Wdo 30 Amp (Circuit Breaker) - Power Windows
14. 14 - Wiper 25 Amp - Windshield Wipers & Washers
15. 15 - Crank 3 Amp - Electronic Level Control (Typhoon)
16. 16 - TCCM 5 Amp (1993) - Elec. Shift Transfer Case Module
17. 17 - Not Used