Just bought a very clean 1994 base shortbed 22RE, power steering, automatic, no AC. 200K on odometer, truck looks well maintained, but previous owner (for the last 30k) did not replace timing chain. Truck runs fine, but I'm having the timing chain done immediately anyway, it's at the shop now. What else should I ask my mechanic to check? Tires are good, fluid levels good, truck seems tight, no rust anywhere. Brake light comes on and goes out, is that the parking brake light? Regular brakes feel fine, truck stops straight. Thanks!