It is charging! Thanks for your input. I don't think it was the Check engine light. Here is my best guess as to how this happened.
A belt was squealing for weeks and weeks. I was to preoccupied with other things to deal with it. The belt went at some point.
Then the transmission wouldn't shift out of second until I was over 43 MPH. I did not put two and two together.
I took it to a big truck mechanic who wanted $2600 for a new transmisssion. (Even after I told them that the belt was off).
Thank god for good friends. I took the truck out to a buddy and he said the belt's off man, your not getting enough juice to the electronic transmission.
One new belt was $12 and the truck started shifting correctly again.
Then the battery got weaker and weaker. Still I didn't connect the problem to the broken alternator belt.
My guess is that the battery got severely depleted. I know it did because I had it tested at a battery store.
The guy there told me an alternator doesn't really charge a battery but maintains the voltage of the battery and provides electricity to the vehicle.
I think that after the alternator lost it's power because of the belt. The battery went dead and as a result the alternator wasn't getting its intiial kick from the battery it needs to start making its own electricity.
Saturday, December 15th, 2007 AT 4:15 PM