1995 GMC Sierra V8 Four Wheel Drive Automatic 213000 miles
I have a GMC 2500 that I just purchased 3 months ago. Motor is 454 with heavy duty trans. After about a month, my truck starts to die when I take it out of park. Sometimes it also happens when I go into park. Turning the key on and off 3 or 4 times let's it start again every single time, but that's the only way to do it. I assumed there was a problem with my ignition and put it on the back burner. Recently, my truck has been stuck in 2nd gear. I can move the shifter into all gears, but I only have 2nd, Neutral, Reverse, and Park. Tranny takes off in 2nd, will not shift up or down. Randomly though, it works perfectly. Has never slipped or stuttered. I took my truck to a transmission shop, they pulled the pan and did a service. Said solenoids A and B were bad, replaced them but didn't fix the problem. Aslo, the mechanic said my tranny is " cherry" and there is absolutely nothing else wrong with it. He advised I look into the ignition problem. I took it to a dealership for diagnostic, they said the ignition works fine, but I'm pretty sure they got lazy on me and didn't run a computer scan. A well respected mechanic in town says he's 100% sure I need to replace the ECM. Looking for another opinion and reassurance before I buy the part. Thanks.
Friday, December 26th, 2008 AT 10:44 AM