How do I know when IP is bad
Thread Starter
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Freshman User
Joined: Jun 2005
Posts: 41
Likes: 0
From: Fort Irwin, CA
How do I know when IP is bad
What are the symptoms of a bad injector pump?
My issues are somewhere in the fuel system but I'm really bad at problem diagnosis.
If my truck was a gas user, I would say it feels and sounds like the timing was off.
Also, what manual is a good buy. I have an old Clymer truck but it isn't very Diesel friendly. I've looked at the Haynes and Chiltons but they don't look much better.
Jaysen
1984 F250 6.9L
My issues are somewhere in the fuel system but I'm really bad at problem diagnosis.
If my truck was a gas user, I would say it feels and sounds like the timing was off.
Also, what manual is a good buy. I have an old Clymer truck but it isn't very Diesel friendly. I've looked at the Haynes and Chiltons but they don't look much better.
Jaysen
1984 F250 6.9L
Thread Starter
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Freshman User
Joined: Jun 2005
Posts: 41
Likes: 0
From: Fort Irwin, CA
Several things as I stated in another post in this room.
It starts okay, but not great, and blows white/blue exhaust. It won't idle at all when the engine warms up. I can drive it when the engine is cold (5 minutes) but with very low power. Once the engine warms up the power goes to near zero.
I've changed the fuel filter and will check the fuel pressure tomorrow. I'm trying to know what I should be looking for when troubleshooting. It looks like the IP would be the most expensive replacement in the fuel system but that is a rookie assumption. If it is a problem in the IP, would it be cheaper to repair the existing unit or buy a rebuilt.
I assume it is not individual injectors because the entire engine is effected, not just a couple of cylinders.
Thanks, Jaysen
It starts okay, but not great, and blows white/blue exhaust. It won't idle at all when the engine warms up. I can drive it when the engine is cold (5 minutes) but with very low power. Once the engine warms up the power goes to near zero.
I've changed the fuel filter and will check the fuel pressure tomorrow. I'm trying to know what I should be looking for when troubleshooting. It looks like the IP would be the most expensive replacement in the fuel system but that is a rookie assumption. If it is a problem in the IP, would it be cheaper to repair the existing unit or buy a rebuilt.
I assume it is not individual injectors because the entire engine is effected, not just a couple of cylinders.
Thanks, Jaysen
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
Get a rebuilt....many locations on the internet are fairly priced and have quality rebuilds.
Do the tests for the fuel pressure, also for power to the IP at the FSS, listen for the click.
6.9 Ford Diesel parts Fuel Injection Turbocharger
7.3 L Ford Diesel Fuel Injectors Fuel Pumps Accessories
Older trucks are susceptable to water intrusion due to the water separator being bypassed. Check the firewall by the booster for the water separator (canister with a pull ring). These can also remain open and leak air into the fuel system when the ring is pulled to drain water. Try placing a 3/8 bolt up the drain tube see if that stops the problem. If the problem goes away then think to put a shutoff spigot on the drain line. That way you can still use the water separator and easily stop air leakage with the spigot.
Do the tests for the fuel pressure, also for power to the IP at the FSS, listen for the click.
6.9 Ford Diesel parts Fuel Injection Turbocharger
7.3 L Ford Diesel Fuel Injectors Fuel Pumps Accessories
Older trucks are susceptable to water intrusion due to the water separator being bypassed. Check the firewall by the booster for the water separator (canister with a pull ring). These can also remain open and leak air into the fuel system when the ring is pulled to drain water. Try placing a 3/8 bolt up the drain tube see if that stops the problem. If the problem goes away then think to put a shutoff spigot on the drain line. That way you can still use the water separator and easily stop air leakage with the spigot.
Tuned
Joined: Nov 2002
Posts: 348
Likes: 0
From: Benson, AZ
It could be a pump or timing. I would start it when it is cold and unplug the advance on the IP. If it starts to die then i would check the timing gears. White smoke I believe means the timing is retarded but i'm not totaly sure.
