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They are under the valve covers better check the wiring and relays frist i have seen more wire problem the wire are in the v-cover gasket i would reccomend ford parts
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have you ever replaced the glow plugs on your truck.this would be the first place to start with a cold start problem.the next thing would be a fuel pump problem to check.
You need to start with your glow plug circuit. There is a glow plug module that is the most likely culprit. You need to get a circuit tester and when the another person turns the key, you verify whether or not you have voltage to glow plug on the engine itself. If not the control module will have to be replaced. The glow plug control module is on the right hand side and front of the engine. Let me know what else you may need.
remove the inner wheel wells or cut it back to get some access its tight that way though i would just remove the two of them its 10& 11 mm on the top sidde just let everthing hang , it is either 5.5 mm or a 7 mm . the speed sensor is in the transfer case for the 4x4 or on theh rear on the trans for 2wd
Hello, here is the proceedure. Any questions please ask. Good luck.
CAUTION
The red-striped wires on the 1994-96 DI Turbo engine carry 115 volts DC. A severe electrical shock may be given. Do not pierce the wires.
Make sure the ignition switch is OFF.
For 1994-96 engines, remove the valve cover.
Disconnect the wire connector from the glow plug.
Using a 10mm deep socket, with enough clearance as to not break or bend the wiring connector, unscrew the glow plug from the manifold.
I have a 2000 F250 with Powerstroke and my buddy has a 02 with same engine. Both of us have had the same problem. There are two coils (look like starter coils) on top of the engine that can be seen from the passenger side of the truck. The shorter of the two, has to do with supplying voltage to the glow plugs. When this coil gets older, it breaks down causing a higher resistance in the circuit. Which reduces the volts that the glow plugs see. In turn resembles a problem with the plugs. My buddy and I changed the coils and both trucks start like new. The part cost $80-$90. and can be changed in less than 5 minutes. Glow plugs are a lot bigger job and more expensive.
If you are sure the glow plug relay and timer, which looks like a starter relay sitting on the intake manifold, are good. The glow plugs are located under the rocker arm covers between each injector. I would recommend purchasing new rocker cover gaskets, which incorporate the wiring harnesses for both glow plugs and injectors. They can be reused, but they will generally start to leak oil before long. The injectors are pretty easy to identify, they're the big square things with the electrical plug. the glow plugs have a single wire running to them. if I can recall they require a 10mm hex. hope this helps.
Fig. 4: Disconnect the wire, then remove the glow plugs as shown
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