Hi Scotty, I own a 1991 Toyota Pickup and I a few questions about it. 1st of all the AC has been redone a few years back, but for some reason the AC only gets cold when the engine is revving or when the car is moving. Then when I come to a complete stop the AC starts to blow out warm air. It has been 100+ degrees ever since summer started where I live in Orange County. Basically, the AC only blows cold air when I'm pressing on the gas. Should I have my entire AC system replaced??

2nd question: Is are there any type of bolt ons or modifications to the that I can do to the pickup to gain a little more horsepower or performance? The truck does almost have 270,000 miles on it. Although I'm not sure if boltons or modifications would even be a good idea for how much miles the truck has on it. If I have to I was thinking of rebuilding the entire engine, or getting the same engine that is made from Billet Aluminum.

3rd question: There has been a squeaking sound when I drive that seems to be coming from the wheels and when the car is moving. I'm not sure what it is, could it be the wheel bearings or the suspension? and should I use WD-40 to try to pinpoint the problem??

Please let me know what I can do and thank you Scotty!