Starting issue
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Mountain Pass
Joined: Dec 2018
Posts: 121
Likes: 1
From: Skopje, Macedonia
Starting issue
1994 7.3 idi just change glow plug relay, but i get same issue.
P probably i need to change glow plugs too, but i don't know does will solve the problem.
The problem:
When I start for the first time it starts but imedeatly goes off. After that it crank but without success...
What can be the problem?
Br
P probably i need to change glow plugs too, but i don't know does will solve the problem.
The problem:
When I start for the first time it starts but imedeatly goes off. After that it crank but without success...
What can be the problem?
Br
Logistics Pro
Joined: Nov 2013
Posts: 3,924
Likes: 1,192
From: Mojave, Ca
-Prototypemech IDI diagnostic chart-
Cold engine is hard to start and white smoke out the tail pipe= glow plugs dead.
Cold engine is hard to start or starts and stalls out=air intrusion between the low pressure fuel pump and the injectors.
Hot engine is hard to start= injector pump worn out.
Engine stalls while driving=air intrusion problem between the fuel tank and the low pressure fuel pump.
Engine chokes and dies while under-load=fuel restriction.
Cold engine is hard to start and white smoke out the tail pipe= glow plugs dead.
Cold engine is hard to start or starts and stalls out=air intrusion between the low pressure fuel pump and the injectors.
Hot engine is hard to start= injector pump worn out.
Engine stalls while driving=air intrusion problem between the fuel tank and the low pressure fuel pump.
Engine chokes and dies while under-load=fuel restriction.
i ain't rite
Joined: Mar 2005
Posts: 65,455
Likes: 5,526
From: Marlboro Mental Hospital.
that is not a glow plug issue, it is air intrusion. you need to change the injector return line caps and o-rings.
what is happening is when the truck is parked engine off, air is getting into the return lines through the old o-rings, and this air lets the fuel in the filter drain back to the fuel tank.
than in the morning you start the engine on a partially empty fuel filter. it will run on the fuel in the injector lines and injector pump, than "run out of fuel" until you re prime it by cranking it over
what is happening is when the truck is parked engine off, air is getting into the return lines through the old o-rings, and this air lets the fuel in the filter drain back to the fuel tank.
than in the morning you start the engine on a partially empty fuel filter. it will run on the fuel in the injector lines and injector pump, than "run out of fuel" until you re prime it by cranking it over
Thread Starter
|
Mountain Pass
Joined: Dec 2018
Posts: 121
Likes: 1
From: Skopje, Macedonia
that is not a glow plug issue, it is air intrusion. you need to change the injector return line caps and o-rings.
what is happening is when the truck is parked engine off, air is getting into the return lines through the old o-rings, and this air lets the fuel in the filter drain back to the fuel tank.
than in the morning you start the engine on a partially empty fuel filter. it will run on the fuel in the injector lines and injector pump, than "run out of fuel" until you re prime it by cranking it over
what is happening is when the truck is parked engine off, air is getting into the return lines through the old o-rings, and this air lets the fuel in the filter drain back to the fuel tank.
than in the morning you start the engine on a partially empty fuel filter. it will run on the fuel in the injector lines and injector pump, than "run out of fuel" until you re prime it by cranking it over
thanks
Logistics Pro
Joined: Nov 2013
Posts: 3,924
Likes: 1,192
From: Mojave, Ca
https://www.ebay.com/itm/7-3L-IDI-Fo...3-a4f004ebae04
follow the steel injector lines from the injection pump to the injectors. They sit on top the injectors, under the fuel line b-nut.
follow the steel injector lines from the injection pump to the injectors. They sit on top the injectors, under the fuel line b-nut.
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