Question about Ford Econoline Wagon
Hello, Your complete message did not come through as 1 word was bleeped out so I do not know what he pushed to get the diesel to flow. What usually happens on Diesel engines is they lose the Diesel fuel in the line due to an air leak. Most of the time the fuel just returns to the tank and fuel has to be drawn all the way back to the engine.
Because of the air leak the fuel can not be pulled up front to the engine. What is usually done is to disconnect the main fuel line at the tank and pressurize the fuel line with air from a compressor with a small amount of force, perhaps 20PSI. Then spray the fuel line working forward from the tank with a soapy water spray from a old detergent sprayer. The leaks in the line will make the soapy water bubble. Then fix the bad spot.
If having a compressor is a problem, there are small "O" rings on the connections under the bonnet. They are cheap, but you need Automotive type "O" rings to withstand the chemicals. There can also be "O" rings in the Injectors. It is also possible to have a clogged Injector which is not closing completely. This can show up in the 20PSI test, or there are machines which can test the Injectors at some Mechanic shops.
I stayed with the fuel idea as a problem based on your letter. But your son should check a part called a "TIMER" for the glowplugs as this part actually makes the new glowplugs your son installed, work. The timer can be tested with a Voltmeter or testlight. Since your son felt the old glowplugs were bad, the problem can easily be due to a bad timer.
I hope my solution is very helpful in solving the problem. You can copy this infomation with a printer in your home and give my advice directly to him.
Posted on Mar 21, 2011
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Posted on Jan 02, 2017
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