Rusty brake lines lost brakes, think that a vehical should go 10 years without brake lines rusting away I was lucky when they broke I was home but just got back from another state and was at highway speeds.
The worst 2007 GMC Sierra Classic problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes12
- Fuel system4
- Electrical3
- Engine2
- Transmission2
- Steering1
- Visibility1
Specific symptoms reported on the 2007 GMC Sierra Classic
Recalls
No recalls on record for this model year.
Defect investigations
Non-crash engine compartment fires
In a letter dated august 27, 2008, general motors corp. (gm) notified the federal safety agency that it will conduct a safety recall (the federal safety agency recall number 08v‑441) to address a safety relateddefect that can result in engine compartment fire in approximately 850,000 vehicles equipped with a heated windshield washer fluid option.the subject vehicles of this investigation comprise over three-quarters of the recall population. According to gm, a short circuit on the printed circuit board for the windshield washer fluid heater module may overheat the control-circuit ground wire. This may cause other electrical features to malfunction, create an odor or cause smoke and in rare cases it may cause a fire.as a remedy, gm dealers will install a wire harness with an in-line fuse. In addition to the subject vehicles, several other gm models with the heated windshield washer fluid option are included in recall 08v‑441: my 2006-2008 buick lucerne (manufactured august 2005 through november 2007); my 2008 buick enclave (manufactured february 2007 through april 2007); my 2006-2008 cadillac dts (manufactured may 2007 through november 2007); my 2007-2008 saturn outlook (manufactured august 2006 through april 2007); and my 2007-2008 gmc acadia (manufactured august 2006 through april 2007) vehicles.gm is instructing owners to take their vehicle to a dealer for service if they experience symptoms of windshield washer heater module short circuits. Gm's recall resolves the safety defect concerns pursued by this investigation.this engineering analysis is closed.
EA08010
Non-crash engine compartment fires
In response to an information request letter sent by the office of defects investigation(odi) during preliminary evaluation pe08-010, gm provided odi with 41 allegations of non-crash engine compartment fires including 16 allegations of fires originating with the ignition in the off position.one of the fires was determined to be caused by an arson event.odi has also received 5 reports, 4 of which are of duplicative of reports provided by gm, alleging non-crash engine compartment fires in the subject vehicles.in total, odi is aware of 41 non-crashengine compartment fires in the subject vehicles that are unrelated to arson.eight of the 41 fire allegations also allege property damage as a result of the fires.this preliminary evaluation has been upgraded to an engineering analysis (ea08-010) to further assess the scope, frequency, origin and cause of the alleged non-crash related engine compartment fires in the subject vehicles.
PE08010
Technical service bulletins for the 2007 GMC Sierra Classic 70
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Engine
- Equipment: electrical
- This informational bulletin provides information on the proper mounting paste to apply to tires when...
- This preliminary information communication provides information to the technician about finding needle...
- This informational bulletin provides information on the proper use of GM floor mats.
- This informational bulletin provides information to technicians regarding intake manifold...
- This warranty administration bulletin provides policy information on courtesy transportation and roadside...
- This informational bulletin provides information for dealers/technicians on when and how to submit a Field...
- This informational bulletin provides dealership personnel with Global Warranty Management (GWM), Warranty...
- This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
What 2007 GMC Sierra Classic owners say
Most recent owner complaints, unedited.
The primer pump housing develops a small leak around a electrical connection. This could lead to a fire as fuel drops on the engine. Gm is aware of problem it has been on going for several years. It only occurs when vehicle is running. Note-no fire has happen to my vehicle, nor do I know of a fire occurring. I just believe this is unsafe. The only way to correct the problem is to replace primer pump housing.
Why is gm recall 14121 limited to new vehicles? It has been a recurrent, common problem since long before 2000. Long before I bought my 2007 gmc sierra classic 2500hd which is on the third repair. I just replaced a transmission cooler line in my driveway. Today. Which is steadily eroding by way of continuous transmission cooler leaks. It continuously coats the underside of vehicle, reducing life of belts and hoses. Gm dealers feel its not covered by 5/100k powertrain warranty, or 36k bumper-bumper warranty because it's a long time gm problem as well as warranties in general.
As I was traveling about 35mph approaching a red stoplight I proceeded to press the brake pedal all the way to the floor, with no braking of the vehicle. Luckily I was able to quickly shift the vehicle into neutral and engage the emergency brake and avoid collision. After further inspection I found the hard brake line running to the front left wheel had ruptured causing the loss of brake fluid. The line ruptured in an area where it was severely corroded and upon inspection, the other hard brake lines of the system looked severely corroded also. All will have to be replaced! This failure could have had a very bad consequences at a higher speed, closer proximity to other vehicles, or with a less experienced driver!
Rusted rear brake line tubing - loss of fluid - no braking power on any wheels - emergency brake was the only way of stopping the truck.
2007 gmc sierra classic with approximately 54,000 miles was being driven into a garage to have wheels balanced. As the technician applied the brakes entering the garage, the brake lines on the front drivers side of the vehicle ruptured and the brake peddle went to the floor. Brake fluid poured out onto the floor and the brakes became completely unusable. If this had happened a few hours earlier in the day as I was traveling on steep mountain highways in west virginia I have no doubt an accident and probable fatality would have occurred. All recommended maintenance had been performed at the gm dealer where the truck was purchased and no warnings from gm were given that the brake lines were showing any signs of wear or that a complete brake failure like this could happen.
Tl* the contact owns a 2007 gmc sierra classic. The contact stated that the brake lines were severely corroded. The vehicle had not been repaired. The manufacturer was made aware of the problem. The approximate failure mileage was 31,000.
I was driving my 2007 gmc siearra classic 2500hd wt and my brake line failed. I went threw the stop sign out onto a main road and just missed getting t-boned by a tractor trailer. I had no brakes at all. My brakes are all up to date. Brand new brake pads and rotors. I read tons of complaints online of people with the same problem with gm vehicles brake lines rusting out prematurely. My truck only has 32,164 miles on it and is well taken care of. I get compliments on my truck everywhere I go. I got nowhere with gm corporate or marty's gmc in kingston,ma where I bought this truck brand new. They all pretended they do not know anything about these brake lines failing. They now use a different coated brake line to replace the cheaply made brake lines at the customers expense. Please make gm do a safety recall on these failing rusting brake lines before someone gets killed. I was almost not here to tell my story.
While driving the truck on a residential street, the brakes completely failed when I depressed the brake pedal (it went to the floor) and attempted to stop. I lost all normal braking ability and had to stop by down shifting and applying the emergency brakes. When I got the truck stopped and got out, I found that the brake fluid was pouring out onto the ground. A qualified mechanic inspected the truck and found that the brake lines were rusted through and had ruptured. He went on to tell me that this problem is a frequently occurring know problem with gmc pickup trucks and that gmc refuses to acknowledge the issue.
Hvac system became operational with the ignition turned off for an unknown period of time while the truck was parked in the garage. Relay resistor module overheated causing melting of the resistor and circuit board. Truck cabin and vicinity around the truck had a strong smell of burning plastic. Truck cabin filled with smoke. Was only able to turn off the HVAC system and stop the burning by disconnecting the wiring harness. Dealer had to replace the blower motor, resistor, module connector and relay. Burning could have caused the entire vehicle to catch fire causing significant damage to other vehicles parked nearby and the house in which the garage was attached. Issue was identical to scenario described in transport canada recall #2011074.
Compare the 2007 GMC Sierra Classic
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Questions about the 2007 GMC Sierra Classic
Is the 2007 GMC Sierra Classic reliable?
Owners have filed 18 complaints about the 2007 GMC Sierra Classic, 18.0 times a typical Sierra Classic model year.
What is the most common problem with the 2007 GMC Sierra Classic?
Brakes, with 12 complaints, typically around 39,252 miles. Next is fuel system (4).
How many recalls does the 2007 GMC Sierra Classic have?
No recalls on record.
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