help please
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help please
i have an other problem im getting code po 269,272,281 cylinder contribution balance fault. i did a buzz test all passed. the problem i having is if you even plug truck in when u frist start it up it idles rough loping after u let it warm up for half hour it idles good. i been looking at forms plug might be bad or injectors being bad or orings or bad oil dirty? i put a new gpr changed fuel filter new fuel pump i havent changed the oil. when i frist got truck was sitting in a flield for couple years i dont know age on oil the owner told me three injectior been replaced couple glow plugs but thats all i know please help also i asked u about code po1728 can that be with my other codes ? thanks for all info u have helped me with 
Post Fiend
Joined: Dec 2009
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From: Livoina,La
Do what was said above but I don't think it's gonna fix the issue it sounds like worn poppet valves in the injector. Pull the solenoids on the injectors and see if you can get a .002 feeler gauge under the armature plate (square plate under the solenoid)
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Post Fiend
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From: Livoina,La
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qustion
what is the ipr stand for? can i poss run tranny fliuld in the gas to maybe clean out injectors?
Hotshot
Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
If you run crap oil in the truck thats old, the truck will run just like the oil.
The IPR Controls the pressure to the injectors. Old oil will cause it to stick and not operate properly.
when your truck warms up, the IPR can move easier and thus why its smoothing out idle.
Post Fiend
Joined: Dec 2009
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From: Livoina,La
Run a buzz test when cold and I bet you have some injectors that sound muffled
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Run a buzz test when cold and I bet you have some injectors that sound muffled
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?
The idea of a buzz test is for you to use your ears and listen to how the injector operates.
If you have a really bad solenoid issue, it gives you a code to identify the solenoid so you dont have to check them all.
They rarely go bad, but the buzz test will give you an idea of a weak injector or if your having major poppet issues.
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yes
Run a buzz test when cold and I bet you have some injectors that sound muffled
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?
When you start it in the morning it misses and lopes like it's running on 5-6 cylinders and vibrates bad when in drive trying to accelerate till the temps start to come up and then it's fine until it sits 6-8 hours ?