Saving Wiper Blades

My car bucks and looses power when at full operatoing temperature. It also sometimes dies but will restart okay. Usually occurs at over 50 mph. I have replaced plugs, dist cap and rotor, also the fuel filter. Plug wires are ony about 1 year old or so. It has 174 k miles. Some articles suggest an ignition control module. Does anybody know how to replace an ignition module on a 1991 Ford Tempo? Any references to pictures of it location or tools needed? Thanks, Kip

Hey all, Working on a 91 Ford Ranger with a 4.0 in it. We have replaced the clutch, pressure plate, throw out bearings, a cylinder pump? the clutch master cylinder and the neutral safety switch. But, it's still doing what it did to start with. It doesn't want to go into gear when the motor is running. When the motor is off it switches fine. Also when you switch it while it's off and put it in first or reverse, then start it, it tries to roll forward, like the clutch isn't releasing. We've replaced everything we can think of. Is there some kind of sensor or vacuum that would cause it to not change once the motor is on and it's loosing pressure that way? After replacing everything, the clutch has built up good pressure. Thanks for any help.