1999 GMC Suburban Fuel system Problems

“Injector pump failure causing the vehicle to just stall when going down the road. It happened to me the last hot weekend this fall. The local dealer took my vehicle & had it for over a week, finally getting a code to show up that allowed them to replace the injector pump. I don't believe that the injector pump was at fault, but instead the pmd electronic control module was failing. This replacement didn't cost me anything, but I think GM should extend the warranty for a much longer period of time because of the known problem. …”

“Door acuators faulty. Power steering pump replaced. Fuel guage faulty. Security system overrides starter which does not allow the vehicle to be started. We have had the vehicle serviced three times for door actuators as we were told this is what was causing security system to shut down vehicle. This did not solve the problem. Gmc national service center was not helpful. They did not return calls or set-up special service appointment at local dealer as they promised. There are several incident dates of when we could not start our vehicle. …”

“Fuel pump/connector failure. Initially engine would shut down intermittently. On last occasion, vehicle engine shut down resulting in loss of power steering, power brakes, etc. Would not restart. Former GM mechanic told me that he witnessed this problem numerous times and found most cases involved failure of electrical connector or ground connection at fuel pump.”

“Engine RPM increases when foot is off the accelerator while driving. This issue started approximately 4 months ago and is on going, each time the vehicle is driven. This is unintended acceleration.”

“Noisy fuel pump in gas tank, non functioning fuel guage. Spoke with several friends who own full size GM pickups, SUV's and vans from same era. Fuel guage, fuel pump problems have occured in 5 out of 6 vehicles.”