Also to the shopping list.. add a set up brake pads.... I need you to take "her" for a spin, that baffle or muffler sound reminds me of when my P150 went bad, but will let you check that out and the temp gauge is laughable!
If it rises up too high just accelerate and it drops to zero temp... then bounces 3/4s to off .... hit a bump back to high.....accelerate and it drops.
doesn't sound like air in the system does it? (radiator is not even warm to the touch)
thought you guys were closed Mondays?