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Engine coolingPart report

2001 GMC Sierra 2500 Engine cooling Problems

Complaints
21about this part
Share
16%of 134 total for the year
Median mileage
71,648miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 21 complaints about the engine cooling of the 2001 GMC Sierra 2500, 16% of the 134 complaints for this model year. Where a mileage was given, the median is 71,648 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I have a 2001 Gmc sierra 2500hd with an 8.1 liter v8 gasoline engine. While I was doing some research on the internet trying to diagnose what could be wrong with it, I stumbled across your website stating that there had been a recall on that truck with that engine. Nhtsa campaign id number : 07v521000. This recall information describes exactly what has been happening with my vehicle and that part is one I was doing research on based upon a mechanic friends advice. …”

NHTSA complaint #10240817, filed 2008-09, 130,000 miles

“I have a truck that has the same issue as the recall in this recall number 07v521000 yet Gmc does not claim it in the recall. The issue is that the recall is for a stalled engine that I have experienced many times. Why wouldn't Gmc cover all the vehicles involved. The engine has stalled a number of times at high speeds. I am able to control the vehicle , but when it happens to my wife the best she can do is coast to a stop. This is city driving so the failure is an accident waiting to happen.”

NHTSA complaint #10248549, filed 2008-11, 81,000 miles

“While replacing the fuel injectors under a special injector warranty, the dealership broke a glowplug off and called to say I need to replace the cylinder head at my cost. Call Gmc customer support who say due to the age and mileage 2001, 124500. That the corrosion of the glowplug and the fact it seized in the cylinder head is not there problem, even though they are the one who designed the engine. They said that it's at my cost for a new cylinder head which was quoted to me over the phone at a price of $1,800.00.”

NHTSA complaint #10221961, filed 2008-03, 124,500 miles

“I have owned my 2001 Gmc sierra 2500hd truck since it was new. The vehicle currently has approximately 92000 miles on it. With the brake line problem I recently had I figured I should report the other issues that I don?t think I should be having with a vehicle that is less than 10 years old. The oil cooler lines and the transmission cooler lines have all rusted through and have had to be replaced. Along with the lines, the connectors for the lines have all had to be replaced due to catastrophic failure (they rusted so bad that were falling apart). …”

NHTSA complaint #10355178, filed 2010-09, 90,300 miles

“Complete engine stoppage at various speeds including stoplights and signs, sometimes refusing to start after being parked for some time. Shop replaced fuel pump. Cost $734.27, 4 months later shop replaced crank shaft sensor cost $296.89. I haven't had pickup returned long enough to know if problem is fixed. Most times motor would start after 15 to 60 sec. Problem started 12+ months ago with motor failure increasing from months to days to hours. Companion refused to ride with me for fear of an accident causing injury or death. …”

NHTSA complaint #10209078, filed 2007-11, 63,797 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202212%
202023%
201926%
201413%
201312%
201112%
200913%
200812%
200722%
200658%
20051311%
200496%
200353%
2002118%
20012116%
200048%
199817%

Other parts of the 2001 GMC Sierra 2500

Brakes
62 complaints
Fuel system
12 complaints
Tires
12 complaints
Steering
11 complaints
Engine
8 complaints
Body and structure
7 complaints
Transmission and drivetrain
6 complaints
Other or unknown
5 complaints
Electrical system
4 complaints
Air bags
3 complaints
Suspension
3 complaints
Equipment
2 complaints

← All problems reported for the 2001 GMC Sierra 2500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology