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1.4

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
119,191 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 Avalanche engine problems

engine problem

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2004 Chevrolet Avalanche Owner Comments

problem #5

Sep 302016

Avalanche

  • 113,000 miles

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

The contact owns a 2004 Chevrolet Avalanche 1500. While driving approximately 50 mph, the check engine warning indicator illuminated and the reduce engine speed message appeared on the instrument panel. The vehicle lost speed and the contact coasted the vehicle to the shoulder. The engine was idle and would not accelerate. The contact engaged in gear and started driving, but the failure recurred. The vehicle was towed to the house. The vehicle was diagnosed by an independent mechanic. The throttle actuator control module failed and needed replacement. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 113,000.

- Minnetrista, MN, USA

problem #4

Jul 032014

Avalanche

  • 117,957 miles
The exhaust manifolds bolts are snapping off which is causing leaking and noises (ticking sounds near drivers side) which can be smelled in the cabin and heard in the cabin of vehicle. I been told by other mechanics that this is a severe problem with 5.3 liter and 6.0 liter engines made by GM.. this repair will be in the thousands to fix.

- Fresno, CA, USA

problem #3

Dec 152014

Avalanche

  • 116,000 miles
The contact owns a 2004 Chevrolet Avalanche 1500. While driving at unknown speeds, the low coolant and check engine warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 116,000.

- Ogden, UT, USA

problem #2

Oct 112014

Avalanche 4WD 8-cyl

  • 136,000 miles
Vehicle started experiencing a gradual coolant loss, found out vehicle has a manufactured faulty cylinder head(s) from castech. Will cost $$$$ to repair. GM will not address the problem except with GM #06-06-01-019B information on gradual coolant loss over time with no evidence of leak found, (June 12, 2007).

- Whitelaw, WI, USA

problem #1

Feb 172014

Avalanche

  • 113,000 miles
The exhaust manifolds fastners are snapping off which is causing carbon monoxide to fill the cabin area of the vehicle. This hazard jepordizes the health of every person driving or riding as a passenger in the V8 powered vehicles. This is happening to newer models as well. GM is wanting to charge the consumer $1,500-$3,000 to due repairs for defective parts.

- Patrick Afb, FL, USA

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