10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

1999 GMC Sierra 3500 electrical problems

electrical problem

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1999 GMC Sierra 3500 Owner Comments

problem #2

Jun 192000

Sierra 3500

  • miles

A D V E R T I S E M E N T S

The check engine light came on and vehicle began to run roughly and stall, the vehicle was inspected and dealer found negative temperature signals, consumer has experienced problems on six occasions where the engine would stall and run rough, and has had various componets replaced, such as radiator coolant, coolant sensor, fuel pump, sending unit assembly, distributor, fuel injectors, spark plugs, wires, serpentine belt, throttle-positioning sensor, egr and oxygen sensor, the bracket that protects the main wire harness was never installed from the factory and consumer feels this was the problem to begin with, some of the componets were even replaced a second time and still did not resolve the problem.

- Lansing, IL, USA

problem #1

Jun 192000

Sierra 3500

  • miles
The check engine light came on and vehicle began to run roughly and stall, the vehicle was inspected and dealer found negative temperature signals, consumer has experienced problems on six occasions where the engine would stall and run rough, and has had various componets replaced, such as radiator coolant, coolant sensor, fuel pump, sending unit assembly, distributor, fuel injectors, spark plugs, wires, serpentine belt, throttle-positioning sensor, egr and oxygen sensor, the bracket that protects the main wire harness was never installed from the factory and consumer feels this was the problem to begin with, some of the componets were even replaced a second time and still did not resolve the problem.

- Lansing, IL, USA

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