Can the Batteries on the Dmax be tested while connected or does one of the positve cables need to be disconnected so you don't read the voltage from the other battery?
In the summer my trans naturally runs warmer, but yestereday at 102F it was close to the 200F mark. I wasn't towing, wasn't alarmed, but don't remember seeing it that high before. Could be we don't normally see over 100F here that often. Have changed out the fluid this spring for the 3rd time...
Have many of you switched out the Dex-cool and put back the regular green anti-freeze? So far mine looks good, but at a local shop the owner gave me a trade magazine that shows the problems GM has been having. I would like to swap it out myself, but it is a large volume of coolant to deal with...