Our tahoe has been in the shop since last thursday. The truck started going crazy all the lights going on and off when driving... next morning truck would no turn over ... by night time the battery was dead and was not able to jump start. Tested the bat. Alt. And starter .... everything good...

Now we replaced the computer and the truck starts but when u put it in drive it goes very slow like the timing or something is off ....

Dad said it might be the tps but we are not sure


Any ideas