Used 1999 GMC Sierra 2500 Consumer Reviews | Edmunds
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1999 Gmc Sierra-2500 - Consumer Reviews

1999 GMC Sierra 2500

Average Consumer Rating

2 Total Reviews

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Great Power with 6.0 liter
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By roy
on

Vehicle

1999 GMC Sierra 2500 HD SL 3dr Extended Cab 4WD SB


Review

ABS electronic module - replaced by dealer in Virgina only problem. Drove 300 miles to pick up - has one of first 6.0 liter engines. Great power. Engine does not show up as option in parts stores until 2001.


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Service 4WD Light
Performance
Comfort
Fuel Economy
Fun To Drive
Interior Design
Exterior Design
Build Quality
Reliability
By cw4915e
on

Vehicle

1999 GMC Sierra 2500 SLT 3dr Extended Cab SB


Review

4WD light comes on intermittently lately. Poor troubleshooting procedures from a Chilton manual led me to replace the front diff actuator motor. Seems the real culprit is a sticky selector switch. Humidity may be affecting this switch, apparently the resistors are shot for each position and loses ability to keep voltage signal to transfer case module. Original battery lasted 6 years so that was awesome to get over 6 years from a battery. Also developed a leak at the front differential. First thought it was the output seal but ended up being the plastic vent cap that screws into the diff.


Favorite Features

4 wheel disc brakes, 6.0L engine, tow/haul feature, large console, overhead console, more room in extended cab with new body style 3rd door


Suggested Improvements

More durable 4WD switch, better vent design for front diff,


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