1999 GMC Sierra 1500 A/C & Heater Service (ONLINE REPAIR MANUALS)

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We have info for following modifications of 1999 GMC Sierra 1500

  • 1999 GMC Sierra 1500 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:W
  • 1999 GMC Sierra 1500 4.8 V8 GAS, CID:294, Fuel Injection, Aspiration:294, Engine VIN:, Desg:V
  • 1999 GMC Sierra 1500 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:T

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

Air Bag System Precautions -> General Motors Corp. -> Disarming -> 1990 -> 1990-93 -> 1990-95 -> 1990-97 -> 1991 -> 1991-93 -> 1991-94 -> 1991-95 -> 1992-93 -> 1992-99 -> 1993-2002 -> 1993-94 -> 1993-98 -> 1994 -> 1994-2002 -> 1994-95 -> 1994-96 -> 1994-98 -> 1995-2002 -> 1995-96 -> 1995-97 -> 1995-98 -> 1995-99 -> 1996 -> 1996-2001 -> 1996-97 -> 1997 -> 1997-2002 -> 1997-98 -> 1997-99 -> 1998-2000 -> 1998-2002 -> 1998-99 -> 1999 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 2000-02 -> 2001-02 -> 2002 -> 2003 -> 2003-04 -> 2003-04 Except Malibu Maxx -> Achieva & Skylark -> Alero -> Astro & Safari -> Aurora -> Avalanche -> Aveo -> Aztek & Rendezvous -> Beretta & Corsica -> Blazer, Jimmy, Sonoma & S-10 -> Bonneville, Eighty-Eight, LeSabre, LSS, Ninety-Eight & Regency -> Bravada, Envoy, Rainier, SSR & TrailBlazer -> C/K Series -> Camaro & Firebird -> Canyon & Colorado -> Caprice, Custom Cruiser & Roadmaster -> Catera -> Cavalier & Sunfire -> Century -> Corvette -> Coupe -> CTS -> Cutlass -> Cutlass Ciera & Cruiser -> Cutlass Supreme -> DeVille -> Eldorado -> Escalade -> Express, G Series & Savana -> Fleetwood -> Grand Am -> Grand Prix & Intrigue -> Impala -> ION -> L-Series -> Light Trucks & Vans -> Lumina -> Lumina APV, Montana, Silhouette, Trans Sport & Venture -> Malibu -> Malibu Maxx -> Metro -> Monte Carlo -> Park Avenue -> Passenger Cars -> Prizm -> Reatta, Toronado & Trofeo -> Regal -> Riviera -> S-Series -> Sedan -> Seville -> Sierra & Silverado -> SRX -> Storm -> Suburban, Tahoe, Yukon & Yukon XL -> Tracker -> Vibe -> VUE -> XLR -> Zone 1 -> Zone 10 -> Zone 12 -> Zone 2 -> Zone 3 -> Zone 4 -> Zone 5 -> Zone 6 -> Zone 7 -> Zone 8 -> Zone 9 -> Zones 1 & 7 -> Zones 2 & 6 -> Zones 5 & 9 -> Zones 7 & 9
Vehicle: 1999 GMC Sierra 1500 4.3 V6 GAS

Passenger Cars

The Sensing and Diagnostic Module (SDM) can maintain enough voltage to cause air bag deployment for up to 10 minutes after the ignition is turned Off and the battery is disconnected. Servicing the Supplemental air bag (SIR) system during this period may result in accidental deployment and personal injury.

Achieva & Skylark
1994-96
  • Ensure front wheels are in straight-ahead position.
  • Turn ignition switch to LOCK position.
  • Remove AIR BAG fuse from fuse block.
  • On 1995 models, remove lefthand sound insulator panel to ac...

CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

Manual Air Conditioning & Heater System Diagnosis & Testing -> Light Duty Trucks & Vans -> A/C System Troubleshooting
Vehicle: 1999 GMC Sierra 1500 4.3 V6 GAS

Refer...

CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

General Service Domestic Vehicles -> 1998-2000 -> Refrigerant Recovery
Vehicle: 1999 GMC Sierra 1500 4.3 V6 GAS

R-134a systems require the use of special service equipment designed specifically for R-134a systems. R-12 servicing equipment cannot be used on R-134a systems.

R-12 recovery stations cannot be used on R-134a systems. A separate recovery station must be used on R-134a systems. The refrigerants are not compatible and will contaminate the R-12 recovery station.

The use of refrigerant recovery and recycling stations allows the recovery and reuse of refrigerant after contaminants and moisture have been removed.

When using a recovery or recycling station...

CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

Component Replacement & Adjustment -> Light Duty Trucks & Vans -> Heater Core, Replace -> Astro & Safari -> Bravada, S & T Series -> C & K Series -> Front -> G Series -> Montana, Silhouette, Trans Sport & Venture -> P Series -> Rear -> Tracker
Vehicle: 1999 GMC Sierra 1500 4.3 V6 GAS

Astro & Safari
Front
  • Remove air cleaner assembly.
  • Drain engine coolant into suitable container.
  • Disconnect inlet and outlet hoses from heater core.
  • Remove heater assembly cover retaining screws.
  • Remove heater core to heater assembly retaining screws and straps.
  • Remove heater core from vehicle.
  • Reverse procedure to install.
Rear
  • Drain engine coolant into suitable container.
  • Remove intermediate seat.
  • Remove drivers door step lamp cover retaining screw.
  • Remove step lamp assembly from...

CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

Electric Cooling Fans -> Light Duty Trucks & Vans -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable
Vehicle: 1999 GMC Sierra 1500 5.3 V8 GAS

Air Bag System Disarming & Arming

Refer to and for air bag system disarming and arming procedures.

Battery Ground Cable
...

CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1999 GMC Sierra 1500 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1999 GMC Sierra 1500 cars and light trucks from 1990+

Manual Air Conditioning & Heater System Diagnosis & Testing -> Light Duty Trucks & Vans -> System Diagnosis & Testing -> 1998 Tracker -> 1999-2000 Sierra & Silverado -> 1999-2000 Tracker -> A/C System Performance Test -> Astro & Safari -> C & K Series Except 1999-2000 Sierra & Silverado -> Diagnostic Tests -> Functional Test -> G Series -> Montana, Silhouette & Venture -> P Series -> S & T Series
Vehicle: 1999 GMC Sierra 1500 4.8 V8 GAS

On models equipped with a Powertrain Control Module (PCM) or Vehicle Control Module (VCM) controlled A/C system, connect a suitable Scan Tool to the Diagnostic Link Connector (DLC), normally located behind the lefthand side of the instrument panel, near the steering column.

Functional Test

Refer to Figs. through for A/C system functional test.

A/C System Performance Test

  • Test must be performed with vehicle in a shaded area.
  • Open windows to ventilate interior, then connect suitable A/C service gauge set.
  • Determine relative hu...

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CLICK HERE TO GET FULL ACCESS TO 1999 GMC Sierra 1500 A/C & HEATER SERVICE PROCEDURES

Shop online for auto body parts, engines, wheels, lights...

Click here to view more details2001 GMC Sierra 1500 Bumper, Front.

Source: Auto Body Parts Store

$291.46

Click here to view more details2003 GMC Sierra 1500 Bumper Bracket, Front, Driver Side, A high quality, OE replacement bumper bracket; With 1-year limited TruckEFX warranty..

Source: Auto Body Parts Store

$64.55

Click here to view more details2015 GMC Pickup Sierra 1500 CCI Grille Overlay, CCI Grille Overlay;14-15SIERRA, , .

Source: Wheels / Rims, Mirrors & Lights Store

$118.50

Click here to view more details about 2002 GMC Sierra 1500 V6, 4.3 L, 262 CID Rebuilt Engine2002 GMC Sierra 1500 V6, 4.3 L, 262 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,451.00

Click here to view more details2008 GMC Sierra 1500 Used Parking Lamp, Passenger Side, R, Fog/Driving; (bumper mounted), new style (smooth door skin), R., Very Good.

Source: Used Auto Parts Store

$126.00

Click here to view more details2003 GMC Sierra 1500 Used A/C Compressor, 6.6, AUTO, 4X4 6.6L, Very Good.

Source: Used Auto Parts Store

$106.00
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