No Four Wheel Drive

The complaint was no four wheel drive, no heater control functionality, and poor braking. This F350 had automatic locking hubs which used a vacuum pulse to engage the hubs. However, the right inner hub bearing had failed causing a vacuum leak so the four wheel drive stopped functioning and the heater controls did not work. I replaced the wheel hub, axle, installed manual locking hubs,  re-routed the vacuum hoses, brakes and rotors. Four wheel drive was restored, heaters worked and proper brake function was restored.



Bucking Buick

buickNorman called me complaining that his Buick was cutting out when he accelerated going up hill. A road test confirmed this. After testing the fuel pressure and finding it to be normal I hooked up my scanner which indicated multiple misfires. New spark plugs and wires corrected the problem.