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really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
20,245 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 Chevrolet Silverado engine problems

engine problem

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2004 Chevrolet Silverado Owner Comments

problem #7

Apr 012014

Silverado 4WD 8-cyl Diesel

  • miles


2004 Chevrolet Silverado. Consumer writes in regards to fuel transfer pump recall notice.

- Galion, OH, USA

problem #6

Aug 012009

Silverado 4WD 8-cyl Diesel

  • Automatic transmission
  • 100,000 miles
The contact owns a 2004 Chevrolet Silverado diesel. The contact stated that while driving approximately 40 mph, the vehicle would overheat. The failure would only occur when traveling on flat road surfaces, uphill or when pulling a trailer. The contact would shut off the engine until the engine was cooled in order to drive the vehicle any further. In addition, the contact stated if he would drive while the vehicle was running hot, it would stall. The dealer advised the vehicle was not under recall and repairs would be at the expense of the owner. The approximate current mileage is 143,000. Updated 06/29/10 the consumer stated the vehicle overheated when towing a trailer on a long grade hill. Updated 07/06/10.

- Sugar Run, PA, USA

problem #5

Sep 102004

Silverado 4WD Diesel

  • Automatic transmission
  • 4,000 miles
I own a 2004 Chevy 2500hd with a lly duramax and the trucks overheats evrytime I pull a trailer that weighs 2000lbs or 12000lbs it does not matter. I think you need to help us out that own this model and year of truck and make GM fix it.

- Bakersfield, CA, USA

problem #4

Jul 292005

Silverado 4WD 8-cyl Diesel

  • Automatic transmission
  • 1,539 miles


2004.5 Chevy Silverado 2500 duramax overheats on several occasions to 258 deg while towing 9000lb trailer 2 times transmissions has gone to 270 deg and has gone into a protective mode while climbing a hill causing us to nearly get rear ended due to no place to pull over and extremely slow speeds took to dealer 6 times with no fix. Dealer refuses to go on road test and says vehicle is operating normally this presents and immediate danger due to slow speeds, possibility of a fire and the damage to my truck from over heating.

- Clovis, CA, USA

problem #3

Jun 092005

Silverado 4WD 8-cyl Diesel

  • Automatic transmission
  • 22,000 miles
2004.5 lly 2500hd Silverado duramax towing 1700 lund prosport in ~85 degree ambient. I was required to turn of the A/C and limit the power as the engine temp continued to climb beyond 210 and into the 235-240 degree range. This is a constant probelm with this engine under minimal load. Dealer has no fix for this truck which is still under warranty and GM keeps saying they are working on the problem. If I continued operating my truck as normal the engine would sustain overheating damage thus causing great damage to components further down the road.

- Belle Plaine, MN, USA

problem #2

Jan 032005

Silverado 8-cyl Diesel

  • Manual transmission
  • 12,250 miles
On three separate occasions while applying the brake pedal it went to the floor. The vehicle failed to stop. The driver was able to maintain control of the vehicle, and drove it to the dealer for inspection. However, the mechanic could not duplicate the problem at this time. The ABS/brake light stayed on, there was an intermittent rattle in the flywheel, the consumer stated that the clutch has no "throw."

- Bonners Ferry, ID, USA

problem #1

Oct 242004

Silverado 4WD 8-cyl Diesel

  • Automatic transmission
  • 1,928 miles
After the vehicle is warm, one of the injector sleeves begins to leak diesel and oil into the crankcase, causing plumes of white and black smoke to come out of the tail pipe and causes the truck to sputter. A loud sound of a valve flapping violently also is heard. The truck has been to the dealership 4 times. Each time, they say that nothing is wrong. One dealer in monterey said that the injectors are from a 2003 model truck and are smaller than the 2004 sleeves, therefore allowing diesel and oil to leak into the crankcase. The dealership has been unwilling to correct the problem in sacramento.

- Citrus Heights, CA, USA

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