1997 F150 Ford How should I flush my cooling system? Should I use a Catch Can on a Ecoboost engine? Why are Cab and Chassis trucks derated with lower horsepower? Should I replace my five year old battery? My locks don't work when radio is off. Why do oil coolers leak on Chrysler engines? Cam Failure. The ZZ632 1000 Chevys biggest bad boy engine! Should I buy an old Sprinter Van? Probably not.