It has been sitting untouched for seven years. Replaced seven glow plugs but 1 the other one would not come out. When I try to start it, the truck sounds as if it will start, but it never turns over. What should I do?
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Re: Ford F250 diesel will not start
If you are sure that it is getting fuel,,,try taking a hair dryer, turn it onto high heat setting and just prior to cranking the motor and during(will take two people) force the hot air into your Air cleaner intake. Usually getting the motor good and warm with any means you can think of will solve the starting problem. But since it has been sitting for several years,this may be just the beginning of your adventures.
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Hard starts, can be a number of different things...
But most common is some or most of your glow plugs are bad, or your glow plug relay.
if you have not changed to glow plugs, in a few years, you should just replace them. They're not that expensive.
when glow plugs, and the relay are working properly, vehicle starts right up.
On some Models the glow plug Relay does not have an integrated Power Relay. This means there is a second Relay before the glow plug Relay that feeds it power.
You should check the wires running to the glow plug Relay for power with the key ON. Check some other wires off of the Ignition switch to make sure your 20 year old Ignition switch is good.
There are some sites which show vehicle wiring. Autozone has a free section after Registering your vehicle but it takes a little sorting through the Help section. There should be a fuse to protect the above Relays.
Make sure you find the Diesel-equipped wiring circuit. Diesel ignitions are different from gas units.
It probably is your glow plugs which are controlled by the cold start relay. They burn out over time. This is normal. Haynes Diesel Engine Repair Manual, part 10330, will walk you through the diagnosis and replacement easily. It's about $20. Hope this helps.
it seems that because it sit's for a while that perhaps it's losing it's prime. if ythis happens generally you will have to reprime the fuel system. in a diesel system you also have glow plugs to help ignite the fuel. check to make sure your glow plugs work, but i would start with whether you have proper prime in the fuel system.. please rate this