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1993 Ford F250 Questions & Answers
I have a 97 F250
As you can see the handle is spring loaded. Is the handle frozen? # 7 appears to be control cable, is the cable frozen?
1993 F250 Cruise control does not work how to troubleshoot
The cruise control system is controlled by engine vacuum, like many other engine components. A split in one vacuum line can cause an array of devices to stop functioning properly. A visual inspection is usually the best way to start, but vacuum gauge is the best way to determine if all the lines are receiving proper vacuum. They branch out from the vacuum tree, adjacent to the throttle body. The tree feeds various vacuum controlled devices, boosters, and solenoids. Older vacuum style cruise control systems have a large control actuator which can be tucked away between the engine block and the inner wheel well. Here is an illustration which may help.
It also doesn't hurt to check the fuse or relay for the cruise control system
5.8l. Why is timing erratic?
You may have a bent crank. start the engine and watch your harmonic balancer pulley, See if it is smooth or kind of wonky . Don't know if wonky is a word, but a bent drive shaft would create a lot of new words! It actually may look like it is bent or very shaky.
1993 ford f250 7.3 liter diesel starting problems
It is worth ensuring the glow plugs are actually receiving current by attaching a test lamp during the starting process. Heater plug timer relays can cause problems.
A good cranking speed is necessary for good cold starting and also good injector spray patterns and break-off pressures. Bad spray patterns and low pressures, slow cranking and fuel drain-back are common problems.
Low compression pressures can also be a problem. If the other stuff has been checked and found to be ok it is worth having them tested.
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