Ford E-350 6.9 diesel starting issues

[My87Landmark]

After sitting overtime it won't start without juice, then its good for 4-5hrs. Replaced leaky water seperator still the same. Put in a check valve worse. Can hear intake fuel pump ,pulled fuse & checked mechanical fuel pump WORKING. Won't start unless juiced. Help me. Thank you all

 

[IDIBRONCO]

Can hear intake fuel pump

I'm assuming that this means an electric inline fuel pump. That was probably used as a band aid to try to fix the same problem that you're having right now.

Won't start unless juiced.

And, just to be clear, this is also after 4-5 hours?

Do you still have two fuel tanks? Sometimes the tank selector valve can cause fuel drain back. It's also possible that you have a leak in the fuel lines going from the tank(s) to the engine. You may have to lay underneath and visually inspect every inch of the feed fuel lines to see if you can see any moisture on them. If so, that's a good place to start.

 

[ihc1470]

What is the glow plug system doing? No worky no starty. Lets start with the question what do you have for test equipment.

 

[My87Landmark]

I'm assuming that this means an electric inline fuel pump. That was probably used as a band aid to try to fix the same problem that you're having right now.

And, just to be clear, this is also after 4-5 hours?

Do you still have two fuel tanks? Sometimes the tank selector valve can cause fuel drain back. It's also possible that you have a leak in the fuel lines going from the tank(s) to the engine. You may have to lay underneath and visually inspect every inch of the feed fuel lines to see if you can see any moisture on them. If so, that's a good

I'm assuming that this means an electric inline fuel pump. That was probably used as a band aid to try to fix the same problem that you're having right now.

And, just to be clear, this is also after 4-5 hours?

Do you still have two fuel tanks? Sometimes the tank selector valve can cause fuel drain back. It's also possible that you have a leak in the fuel lines going from the tank(s) to the engine. You may have to lay underneath and visually inspect every inch of the feed fuel lines to see if you can see any moisture on them. If so, that's a good place to start.

There is only one tank , its a Ford Landmark. There is an " in tank fuel pump " factory in don't know. It used to be once started i wouldn't have to juice it for 4-5hrs. Put in a new water seperator then it went to like 1/2hr.the Original factory 1 was leaking like a siv.

 

[My87Landmark]

What is the glow plug system doing? No worky no starty. Lets start with the question what do you have for test equipment.

It won't start unless I juice it so I assume glo plugs aren't working but shouldn't it start in 70degree weather ???

 

[IDIBRONCO]

shouldn't it start in 70degree weather ???

Quite possibly not. I don't like to start mine cold when it's less than 95*. It can be done, but I just don't care to do it myself. To check if it's the glow plugs, try plugging in the block heater for a couple of hours and see if it starts then.

 

[ihc1470]

It won't start unless I juice it so I assume glo plugs aren't working but shouldn't it start in 70degree weather ???

I doubt that it will. That system would be the first thing I would be looking at. As was suggested plug in the block heater if it has one and if it works, that should give you a pretty good idea.

 

[My87Landmark]

I doubt that it will. That system would be the first thing I would be looking at. As was suggested plug in the block heater if it has one and if it works, that should give you a pretty good idea.

Thanks guys. Took the block heater out , was leaking

 

[My87Landmark]

Quite possibly not. I don't like to start mine cold when it's less than 95*. It can be done, but I just don't care to do it myself. To check if it's the glow plugs, try plugging in the block heater for a couple of hours and see if it starts then.

My old caps on the glo plugs are so brittle they are breaking. I'm gonna need to replace them , what else should I replace

 

[IDIBRONCO]

My first suggestion is to check to see if you're getting power to the glow plugs before you replace the wire ends. Some people like to completely rebuild their entire glow plug wire set up. Some switch to the 7.3 style glow plugs. I'm not recommending that. It's your decision. I'm just trying to have you find a possible problem first. I'm different than that. I have a 7.3 in my 1985 and I still use the 6.9 style of glow plugs. I use a manual control and don't even have a controller. Those wires just hang there. To me, it was the simplest way to go.

 

[ihc1470]

How cold does it get in Wisconsin in the winter. Might be a good excuse to replace that missing block heater. You have not answered the question of what you have for test equipment. I like to test first before throwing money at things.

 

[My87Landmark]

How cold does it get in Wisconsin in the winter. Might be a good excuse to replace that missing block heater. You have not answered the question of what you have for test equipment. I like to test first before throwing money at things.probably not gonna be driving it this winter & a test lite

 

[ihc1470]

Well a test light will catch about 90 percent of the bad ones. Pull all the wires off the glow plugs. Connect the clip of the test light to battery positive post and then probe the connector tip of each glow plug. The test light should light up. If it does not that glow plug is open and needs replaced.

If everything is working correctly good batterys, good starter, good glow plugs, and a fuel system that is not wore out these engines will start at zero and below without issue. I run 30W year around and have never had an issue. If I know I need to go someplace and know it will be at zero I will plug the block heater in but sometimes things come up.