Problems back, Need more ideas.
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Of the next Riffraff East
Joined: Oct 2004
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From: Concord NC
Problems back, Need more ideas.
After feeling good about being able to close out my other post,
https://www.ford-trucks.com/forums/5...-my-truck.html
I get in the truck this morning and crank it up and it cuts right back off. Just like before. Hold the pedal down and it cranks, runs rough, no power. Turned off on restarted several times. Finally ran a little better. Took it for a drive, ran like crap. No Power, rough running, almost like missing or skipping. No CEL, Checked for codes, 1211 back. Cleared code, restarted better this time,(truck warm now), ran a little rough, switched off and on while on road, seemed to clear up and run better. I'm a little bummed out after thinking I had it fixed. I have replaced the ICP sensor and pulled and cleaned the IPR, cleaned all connections. I plan on changing oil, oil filter and fuel filter Monday. Other than that, I am lost.
Truck ran great for 1 1/2 days, then after a 20hr sit, the crap come back. Anyone got any ideas what to do now?
https://www.ford-trucks.com/forums/5...-my-truck.html
I get in the truck this morning and crank it up and it cuts right back off. Just like before. Hold the pedal down and it cranks, runs rough, no power. Turned off on restarted several times. Finally ran a little better. Took it for a drive, ran like crap. No Power, rough running, almost like missing or skipping. No CEL, Checked for codes, 1211 back. Cleared code, restarted better this time,(truck warm now), ran a little rough, switched off and on while on road, seemed to clear up and run better. I'm a little bummed out after thinking I had it fixed. I have replaced the ICP sensor and pulled and cleaned the IPR, cleaned all connections. I plan on changing oil, oil filter and fuel filter Monday. Other than that, I am lost.
Truck ran great for 1 1/2 days, then after a 20hr sit, the crap come back. Anyone got any ideas what to do now?
Thread Starter
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Of the next Riffraff East
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From: Concord NC
That's a thought. P1211 ICP Not Controllable - Pressure Abow/Below Desired refers to high pressure oil system, I think. I'm wondering if the need for holding the pedal down helps build oil pressure, maybe??? I just don't know. Thought for sure it was just a sensor.
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Of the next Riffraff East
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From: Concord NC
Originally Posted by amiller93
Low fuel pressure is one of the test in the 1211 pinpoints.
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Of the next Riffraff East
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From: Concord NC
Originally Posted by amiller93
PM me your email and I'll send you the complete 1211 pinpoints.
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Of the next Riffraff East
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From: Concord NC
Thanks Alan, Do you think my oil could be the culprit? I have a more miles on it than I thought. I have about 2500 miles on oil. I have always ran Mobil Devac 1300 Heavy Duty Diesel Oil. 15w-40. It hasn't been that cold here. 20's to 50's.
I plan on changing it anyway. Would you recommend a differant brand and weight of oil?
I plan on changing it anyway. Would you recommend a differant brand and weight of oil?
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Of the next Riffraff East
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From: Concord NC
I really don' know what I'm thinking. I don't think aeration is the problem. Problem occurs more after several hours of cool down. Once warm, and after a couple of start/restarts, usually runs good. I really don't want find out my HPOP is failing. I would think it would be bad or good, not both.
Cross-Country
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Originally Posted by zx250
That's a thought. P1211 ICP Not Controllable - Pressure Abow/Below Desired refers to high pressure oil system, I think. I'm wondering if the need for holding the pedal down helps build oil pressure, maybe??? I just don't know. Thought for sure it was just a sensor.
What about GPR and glow plugs? Have you checked these? Maybe I misread your symptons, but it sounds like the majority of your problems are right at start up. How about pulling your chip and see if it starts from dead cold any better? Also, plug in the block heater for a few hours and see if she behaves a little better. How cold is it where you are?
Changing oil could help a tiny bit. Delo is 15-40. You might try a round of Synthetic 5-40 Rotella T.
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Of the next Riffraff East
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From: Concord NC
I understand the fuel feed. I had to hold the pedal down while turning the switch to get it to stay running once it started, otherwise, it would just start and cut back off within a second. Haven't checked GPR or glowplugs. No problems getting it to start, just problems keeping it started.
There is no smoke of any color when starting or running. Temp this morning when I cranked it was 39 F. It got down to about 25* F overnight. WTS light cycles and I hear the fuel pump running.
There is no smoke of any color when starting or running. Temp this morning when I cranked it was 39 F. It got down to about 25* F overnight. WTS light cycles and I hear the fuel pump running.
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From: Cocoa Beach, FL
You are intimately familiar with the problems I just had. What I didn't post was the prior 2 weeks of problems I was having that is very similar to yours. I tested batteries, gpr, gp's treated my fuel and all was good. Then replaced everything anyway. look where I ended up.
I'd try the fuel filter first. I wouldn't think the fuel reset will be a common problem but it happened to me
I'd try the fuel filter first. I wouldn't think the fuel reset will be a common problem but it happened to me
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Changing your oil to a lower viscosity will probably make your truck start just fine if there is nothing wrong with it. Many, many, (do I need to say many again) "mystery" starting problems occur with 7.3s that are running 15-40 in up here in Alaska. And yes, they normally occur at about 20 degrees and of course below. Take my 2000 f-350 for example. It can have a tough time starting with 15-40 in the late fall in the morning with the temps falling in the upper teens and low twenties. When I change the oil to 10W-30 Rotella it starts really, really well without pluggin it in all the way down to -10. In fact it starts almost like it is a summer day. It will even start with a couple of key cycles at -25. A tiny, difference? HARDLY! You really will not believe what a difference changing viscosity will make all by itself. One note: the Rotella 10W-30 is not meant for temperatures above 80 degrees in a 7.3s...it is not summer oil.
Originally Posted by WuShock
Your truck is fly by wire. Meaning the PCM controls the fuel flow. You can pump that fuel pedal till the cows come home and it will do nothing. There is no (or very very little) HPOP pressure when its turning over. 100 PSI.
What about GPR and glow plugs? Have you checked these? Maybe I misread your symptons, but it sounds like the majority of your problems are right at start up. How about pulling your chip and see if it starts from dead cold any better? Also, plug in the block heater for a few hours and see if she behaves a little better. How cold is it where you are?
Changing oil could help a tiny bit. Delo is 15-40. You might try a round of Synthetic 5-40 Rotella T.
What about GPR and glow plugs? Have you checked these? Maybe I misread your symptons, but it sounds like the majority of your problems are right at start up. How about pulling your chip and see if it starts from dead cold any better? Also, plug in the block heater for a few hours and see if she behaves a little better. How cold is it where you are?
Changing oil could help a tiny bit. Delo is 15-40. You might try a round of Synthetic 5-40 Rotella T.