GMC Suburban won't start problems

Filed May 26, 2020 · Electrical · 97,000 miles · FL

Gm passlock system faulty leaving me stranded far from home.thankfully, I was not in the road. My vehicle wouldn't start. This is a huge problem and many people have experienced it.

Filed Apr 15, 2009 · Fuel system · OK

Spring of 2008 we replaced the fuel pump. Then in november 2008 the fuel pump failed again. The mechanic said they were both brand new fuel pumps but he was unsure of why they both failed to work properly when we took it back in march 2009. 3 new fuel pumps all within one year sounds like a problem to us. The mechanic also had to replace the harness. Each time when the fuel pump went out the car just wouldn't start. It would drive fine and then just not restart once turned off.

Filed Mar 31, 2005 · Electrical, Fuel system · 95,600 miles · NV

Fuel gage was acting erratic went full then empty with full tank . A few days later the truck would not start. Found fuse in engine compartment blown for fuel pump. Fuel pump wiring was melted in fuel tank causing short. Had to replace pump and harness which was part of the pump housing. Also replaced fuel filter due to lack of fuel flow (no power) a week later.

Filed Jan 15, 2004 · Brakes, Fuel system · TN

Diesel k2500 suburban. Injection pump suffered a problem with intermittent fuel cutout. Solution was replacement of injection pump. Repeated dealer attempts to diagnose exact problem was not successful. Seat mount failed. This caused seat to tilt on base & torque remaining mounts. The wiper motor cut out at random. Gm acknowledges this problem for other models, but not for mine. This would cause failure of motor functions (in my case, the wiper would not start if parked, but would start if pulled out of park position). Brakes are the most interesting problem. While there may indeed be a problem with pedal suddenly going to the floor I think the actual situation in most of those cases may actually be as follows. I had to brake fairly hard in unexpected traffic, and the antilock brake system fired. I was moving not faster than about 50 MPH at the time, but it took (measured) 642 feet to stop the vehicle. At no time did I release the antilock system before the vehicle stopped. During this time, I was able to steer quite successfully around two stopped vehicles, and to run up on a grassy shoulder and back onto the pavement. I had the front brakes relined and trued, and the fluid flushed and replaced, at a local shop shortly after purchasing the vehicle used (with about 56,000 miles). Apparently, gm knows that it is necessary to cycle the antilock motor so that all the pistons are at the right position before bleeding the brakes. If the brakes are bled with the motor not centered, the effect is that full modulation of the brakes does not occur, for some or all wheels, when the antilock system fires. However, the dump-valve function relieves all brake pressure while the motor is running. The result is that only partial brake application is effectively being made -- this might be almost any arbitrary percentage of a 'normal' full brake application -- and this may greatly reduce the amount of deceleration seen in critical situations.

Filed Oct 17, 2002 · Fuel system · FL

Vehicle would stall about once a week at any given time. Then one day it would not start. When fuel pump was removed from the tank the power wire was shorted and melted inside the tank, had to replace the complete tank assmy. Consisting of the pump, sending unit and wiring harness, the repair shop said we were very lucky that it did not explode, after researching this site I see that this has been a problem that dates back to new models released in 1996, and still nothing has been done about it ....why????? Dt

Filed Mar 12, 2002 · Electrical · WI · 1 injury

Consumer raised hood; attempted to start vehicle, after vehicle would not start, douglas battery suddenly blew up, consumer was injured. *ak

Filed Feb 8, 2001 · Brakes, Electrical · CA

Consumer's car was pulling to right and braking to left. Took to dealer, and and they aligned front end, and did repairs on brakes and knuckles. *ak the steering wheel wobbles when the vehicle comes to a stop. There was wind noise from right side of the vehicle. The engine idles rough due to dirty injectors. The vehicle vibrates at speeds of 80-90 MPH due to bent wheel. The vehicle would not start due to a weak battery. The steering moans when turning due to failure of evo sensor on steering column.

Filed Nov 30, 2000 · Brakes, Electrical · FL

During summer of 1999, I noticed battery acid residue below battery on lines and wires. Cleaned off with oil. Brakes were mushy. In october, 2000 brakes slowed vehicle but required additional pressure to stop. Noticed additional battery acid build up on lines and wiring. Brakes failed nov. 22, 2000. Added brake fluid. Vehicle would not start on nov. 28, 2000. Positive battery post separated from battery. Spent two hours removing broken-off battery from battery bolt,cables and installing battery. Poured baking soda water on affected area of lines and wires.

Filed May 30, 2000 · Electrical · OH

We have owned the vehicle for just over a month and it has left us stranded 5 times (unsafe/unreliable) and we have had it towed 3 times. The vehicle did not start all those times. The dealer has given us a big run around trying to fix the problem. Even though we did buy it used it is still under warranty. Our main concern is that we know are afraid that it has been imported from canada and we are having trouble finding the past history on the vehicle. We went to carfax and they only have records fromt the dealer to us and not the original owner. It really is disturbing to not know if they previous owner was having the same problem. Is this a lemon? Will it stop running as we are driving? Will it leave us stranded in a bad section of town? Please direct me as to where to find information in canada. Thank you valerie.

Filed Mar 29, 2000 · Engine, Fuel system · AZ

While driving daughter to school, pulled into the parking lot and vehicle stalled, and would not start again. Had vehicle towed to the dealer, and they broke the fuel sending unit. Which they replaced. But, still having problem with vehicle stalling. Engine check light came on and stayed on. They pressurized the tank. Now the gas gauge does read properly.