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2008 GMC Sierra 1500 Problems

Find the most common issues based on 2008 GMC Sierra 1500 owner complaints.
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Most Common 2008 GMC Sierra 1500 Problems

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will ...
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...
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pum...
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1 Known 2008 GMC Sierra 1500 Brakes Problem

The anti-lock brake system (ABS) pump may stay running after the ignition is turned off causing the battery to go dead. Our technicians tell us that the ABS control module should be replaced to cor...

2 Known 2008 GMC Sierra 1500 Drive Train Problems

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will ...
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.

2 Known 2008 GMC Sierra 1500 Electrical & Lights Problems

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pum...
The keyless entry system may stop working. Our technicians tell us the key fobs and keyless entry receiver may need to be replaced to correct this fault.

2 Known 2008 GMC Sierra 1500 Engine Problems

The GMC Sierra 1500 uses a throttle position sensor (TPS) which commonly fails and causes: Check engine light illumination Reduced Power message OBD trouble code P2135 This issue is related...
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distribu...

1 Known 2008 GMC Sierra 1500 Exhaust & Emissions Problem

A Loose or worn gas cap may cause Check Engine Light to illuminate.

2 Known 2008 GMC Sierra 1500 Heating & Air Conditioning Problems

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...
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

0 Known 2008 GMC Sierra 1500 Maintenance Problems

2 Known 2008 GMC Sierra 1500 Miscellaneous Problems

The inside door handles are prone to breaking.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.

1 Known 2008 GMC Sierra 1500 Suspension & Steering Problem

The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is...

13
Known 2008 GMC Sierra 1500 Problems & Complaints

The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is...
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pum...
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...
The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will ...
The inside door handles are prone to breaking.
The keyless entry system may stop working. Our technicians tell us the key fobs and keyless entry receiver may need to be replaced to correct this fault.
The anti-lock brake system (ABS) pump may stay running after the ignition is turned off causing the battery to go dead. Our technicians tell us that the ABS control module should be replaced to cor...
The GMC Sierra 1500 uses a throttle position sensor (TPS) which commonly fails and causes: Check engine light illumination Reduced Power message OBD trouble code P2135 This issue is related...
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distribu...
A Loose or worn gas cap may cause Check Engine Light to illuminate.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
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