I picked up an Actron scan tool at a Sears store closing sale. This one reads codes, clears codes, and shows live data. Coincidentally, I had to dig into the Traverse's instrument cluster to see if I could find the flaky connection that was making my driver information display go out. In doing so, I had to take the dial needles off to get to the circuit board (danger, Will Robinson!). Didn't find the flaky connection, but apparently it's no longer going blank.
Checking the gauges after I got it back together, the speedometer agrees with the GPS, and everything agrees with the scan tool except the coolant temperature. It appears though, that it's always been off since the gauge reads the same. It normally hangs around 210F, but the scan tool says it's really only about 180F. Anyone know what temperature thermostat would be in a Traverse? I'll believe 180 and the gauge is just supposed to tell you if it's stone cold, normal temperature, or overheating.
Checking the gauges after I got it back together, the speedometer agrees with the GPS, and everything agrees with the scan tool except the coolant temperature. It appears though, that it's always been off since the gauge reads the same. It normally hangs around 210F, but the scan tool says it's really only about 180F. Anyone know what temperature thermostat would be in a Traverse? I'll believe 180 and the gauge is just supposed to tell you if it's stone cold, normal temperature, or overheating.