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6 Posts
Hey guys,
New boot here. Just found out about your site and i like it. Everybody trys to help each other out. Now maybe someone can help me. The other day i was on my way home to south Louisiana from Texas and i went to pass 2 18 wheelers in a row. I got up to about 90MPH when all of a sudden I heard a loud noise and my truck stopped pullin. It coasted down to about 50MPH when it kicked back in to 4th gear and stayed there.
Then the service engine soon light came on. So i pulled over and checked my fluid and it was fine,looked underneath and no fluid leaks. So i went to take back off and the truck was stuck in 4th gear. So I pulled back over killed the truck and did a good once over. I could not find anything wrong so i started the truck back up and this time it went through all the gears just fine. I went to Autozone and got them to read the codes for me. They r P0700(Trans control System) This code was in their twice!!! And P1720(Trans Control Speed Sensor).I took the truck in to my local gmc dealer and he reset the system and said i drove it to hard??????
I think he is full of crap. Has anyone else ran into this problem? And if it helps i have 145,000 Miles on it and this is the 1st real problem ive had with it.If anyone could help a new boot out i would appreciate it.:help
New boot here. Just found out about your site and i like it. Everybody trys to help each other out. Now maybe someone can help me. The other day i was on my way home to south Louisiana from Texas and i went to pass 2 18 wheelers in a row. I got up to about 90MPH when all of a sudden I heard a loud noise and my truck stopped pullin. It coasted down to about 50MPH when it kicked back in to 4th gear and stayed there.