hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
55,840 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.

2004 GMC Sierra 1500 engine problems

engine problem

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2004 GMC Sierra 1500 Owner Comments

problem #3

Jul 012011

Sierra 1500 8-cyl

  • Automatic transmission
  • 28,000 miles


The contact owns a 2004 GMC Sierra 1500. The contact stated that the radiator did not have a peacock to drain its coolant from. An authorized dealer was notified and the contact was informed that the manufacturer stopped using peacocks to save money. The contact expressed concern over the situation because it could lead to a failure of the radiator. The failure and current mileages were 28,000. The VIN was unavailable. I was informed that the lower radiator hose must be removed to change coolant. In doing so the hose can be destroyed and coolant could be spilt on the ground. Updated 10/11/2011

- Suffolk, VA, USA

problem #2

May 202011

Sierra 1500

  • 79,520 miles
The contact owns a 2004 GMC Sierra 1500. The contact stated that while driving 20 mph, he heard a noise coming from the engine. The vehicle was taken to the local mechanic, who stated that the failure was due to the cylinder heads being cracked, causing the engine to lose oil and coolant. The local mechanic replaced the cylinder heads, the gasket kit, bolts and nuts. The manufacturer denied assistance with the repairs. The failure mileage was 78,000 and the current mileage was 79,520.

- Raymond , ME, USA

problem #1

Nov 012010

Sierra 1500

  • 60,000 miles
I hear a tapping of the valves when the car is on. Also the speedometer will stop registering how fast I am going.

- Vicksburg, MS, USA

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