Left the truck without using it for 4 years because it wouldn't maintain idle. When it would idle, it would work but wouldn't go faster than 55mph and backfire every once in a while. I recently tried to get it going again and was able to start it but it wasn't running smoothly again. When I floor it revs and sometimes backfires again. It will not idle. I've changed the fuel filter, fuel injector module, spark plugs and cables, rotor, oil change, distributor cap. If you can, help I'd appreciate it. Thanks
Feb 23, 2012 at 11:01 PM