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Resources for the Repair and Maintenance of your 1999 GMC Sierra 2500

1999 GMC Sierra 2500

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1999 GMC Sierra 2500 Problems

Heating & Air Conditioning -- Verified

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Electrical & Lights -- Verified

A clicking noise may be noted from the turn signal flasher after the turn signals are switched off.  This is commonly cause by a faulty turn signal switch which will require replacement.

Drive Train -- Verified

The 4WD transfer case position sensor or the selector switch may fail causing the service 4WD message to be displayed.

Engine -- Verified

A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.

Exhaust & Emissions -- Verified

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

1999 GMC Sierra 2500 Recalls (Recent)

Body, Interior & Misc., April 10, 2006

Summary: CERTAIN PICKUP TRUCKS HAVE GALVANIZED-BRAIDED-STEEL TAILGATE SUPPORT CABLES USED TO SUPPORT THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION. OVER TIME THESE CABLES CAN CORRODE AND FRACTURE WHEN LOADS ARE APPLIED TO THEM.

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Brakes, July 29, 2005

Summary: ON CERTAIN PICKUP TRUCKS EQUIPPED WITH MANUAL TRANSMISSIONS AND BUILT WITH EITHER PBR PARKING BRAKE SYSTEMS OR TRW PARKING BRAKE SYSTEMS, THE PARKING BRAKE FRICTION LININGS MAY WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.

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Brakes, September 22, 2005

Summary: CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.

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Brakes

Summary: THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: 1/2 TON LIGHT DUTY PICKUP TRUCKS. ON CERTAIN TRUCKS, FAILURE TO FOLLOW THE SERVICE PROCEDURE SET FORTH IN THE SERVICE MANUAL FOR REMOVAL OF THE FRONT BRAKE CALIPER CAN RESULT IN MOVEMENT OF THE FRONT BRAKE HOSE RELATIVE TO ITS KNUCKLE MOUNTING BRACKET. IF THIS MOVEMENT RESULTS IN INCREASED LENGTH BETWEEN THE BRACKET AND THE BANJO FITTING THAT ATTACHES TO THE BRAKE CALIPER, IT IS POSSIBLE FOR THE BRAKE HOSE TO COME IN CONTACT WITH THE WHEEL RIM.

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Brakes, February 5, 2001

Summary: VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. SOME OF THESE VEHICLES HAVE A CLEARANCE CONDITION BETWEEN THE FRONT RIGHT-HAND BRAKE PIPE AND THE BODY CROSS SILL THAT COULD DECREASE TO THE POINT OF ALLOWING CONTACT DURING THE LIFE OF THE VEHICLE. IF CONTACT OCCURS AND THE BRAKE PIPE BECOMES DAMAGED, IN HALF OF THE BRAKE SYSTEM THERE CAN BE A LOSS OF BRAKE FLUID AND PRESSURE. THE BRAKE WARNING LAMP WILL BE ACTIVATED WHEN THE BRAKE FLUID LEVEL REACHES THE INDICATOR LIMIT.

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1999 GMC Sierra 2500 Questions and Answers

Visitor, 1999 GMC Sierra 2500, Mill Run, PA

I have 1990 GMC sierra 2500. i need to find out if it has abs brakes for axle replacement.

leer123, 1999 GMC Sierra 2500, Gasoline, White Salmon, WA

replaced fuel pump and fuel filter truck still no start, thanks for any advise !

genopower, 1999 GMC Sierra 2500, Pittsfield, MA

I replaced all the brake lines with Cunifer then bled them at the wheels. The one that goes from the control box (under cab) to rear wheels is leaking. It is screwed in fully and tight but when pre...

mydamntruck, 1999 GMC Sierra 2500, Tupelo, MS

how can you check to see if the transfer case for my 4x4 needs fluid

mydamntruck, 1999 GMC Sierra 2500, Tupelo, MS

my transfer case was not going into gears right with my 4x4 gm sierra 2500 1999 model. i refilled it with the transfer oil. but i am hearing a whistle noise, it is shifting now and not jumping like...

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