I dumped 4000 into my Chevy Tahoe trying to figure out why it was making a clunking noise. I change the engine, thermostat, radiator and timing. The car still ticked. I was driving by Mr. Transmission and I just stopped, poured my frustration out to the mechanic and without hesitation he got inside my vehicle, drove it, performed different checks and diagnosed the vehicle. I really appreciated his help.. Thank you Mr. Transmission