Hard start

[Jkelley]

I have a 94 7.3idi just installed facet electric fuel pump and it is still hard to start any suggestions

 

[Sidewinded_idi]

Both hot and cold?

 

[Jkelley]

No when it is cold or sitting for about 45 min

 

[sjwelds]

Electric fuel pump won't fix air intrusion or weak batteries or starter.

 

[Jkelley]

New batteries it appears to turn over very well just put new seals on fuel injectors it Wil fire quick when I put a little gas into air tube

 

[chillman88]

How old are the glow plugs? You just said hard start, you didn't specify what it's doing.

 

[Jkelley]

Just cranks a lot before it starts New glow plugs when it does start runs great

 

[Thewespaul]

You’re getting air somewhere. Check everything for a leak. Common places are fuel filter housing, soft line at the frame rail and any hardline connection where there is an olive.

 

[Jkelley]

Ok thanks

 

[Sidewinded_idi]

When it’s cold in the morning it cranks a lot aswell? Same as if it’s hot and you try to start?

 

[Jkelley]

In the morning it's very hard but after it runs and warms up it ok until you leave it set for about 45 min to hour then it's hard to start it run great when it starts

 

[chillman88]

Might not be a bad idea to try some fuel rated clear tubing to find your air bubbles.

 

[Sidewinded_idi]

In the morning it's very hard but after it runs and warms up it ok until you leave it set for about 45 min to hour then it's hard to start it run great when it starts

Could almost be a injection pump failing as well as bad glow plugs. When cold with the bad plugs it takes extended cranking to light off. Test it by plugging your block heater in the morning for an hour or so and see what it does. The ip once the truck is warmed up it heat soaks the wore out ip

 

[Jkelley]

I'll try that. I didn't think about that thanks let you know what happens

 

[red41neck]

Interesting, fellow at swap meet last week said he could only get his early 94 7.3 started by putting air pressure in the fuel tank.
How ?? Why ??