Originally Posted by ramvan2500
Timing will certainly have an effect on the engine temperature, this is why most people who put a hotter cam in their vehicle usually have a performance radiator and a lower temperatured thermostat. It's good to have an engine that heats up quick and runs warm, you get out of open loop and you burn the fuel more fully (hopefully without ping).
At a higher RPM you're going to notice the temperature gauge go up, mostly on older vehicles because the timing chain stretches a little and it has a small effect on timing which can possibly have a direct effect on the temperature, especially when the computer begins to do spark retarding at higher RPM's to bring up the torque a little.
So does this mean that my truck should be running bad, like misfiring or not starting at all?? I honestly don't have any idea about timing, but I always thought if your timing was bad, your car wouldn't start!
And in referencing to the thermostat, you stay people go with a lower thermostat, most auto part stores have only one thermostat for your vehicle, just depending on preference of brand?!?!