03 6.0 injector issues
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From: Mojave Desert
03 6.0 injector issues
Had my mechanic run the rotunda diagnostic Engine was misfiring on 6 and 7 also had bad egr valve #8 glow plug and cam shaft sensor all items have been replaced also checked for a hp oil leak in system to correct an occasional no start when hot after all was reassembled 6 and 7 are still not working right after running self test engine runs ok not perfect turn on the AC 6 and 7 drop almost out put trans in gear they drop even more take trans out of gear turn ac off they still are out wont come back up unless self test is run again I am hoping somebody might have run into this before or might have some ideas Also Noticed this only occurs when engine is at operating temperature on cold start (70 degrees) runs smooth
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From: Mojave Desert
Texans ICM was Replaced in August 09 we did run an Injector Electric test showed all injectors are working we do have code p0278 po281 on cylinder balance which are for 6 and 7 will check the ICP Truck has 214,000 Miles with lots of repair issues to get that far
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From: Mojave Desert
The ICP Pressurer is within the range on the Diagnostic program sorry I do not have exact numbers to give you
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From: Mojave Desert
215,00 miles Steve Should also mention it is in a f550 Chasis with a Refer Box on it
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Have some other current issues also Ac cuts out like it would do if the fan is not working or pulling a hard grade with a load Just replaced fan clutch assembly 1000 miles back diagnostic indicates all is good i hear than fan kicking in and out so I know it is Working
Have a No start/Hard Start condition after driving ie stop at a convienece store come back wont start except with a small shot of Ether I know its a bad thing try to keep it to a short spray We figure this is a Hpo system issue Hpop was replace in 12/09 along with the J tube have also replace the upright tubes and the braided hoses I believe the y branch tube is the only one not yet replaced
on the Injector Issue we arre leaning towards Wire harness' ssems that is the only thing that would keep just those two injectors out/ dont understand why they would pickup at a higher RPM if it was an oil pressure or fuel issue wouldnt that affect all the injectors across the board?
Have a No start/Hard Start condition after driving ie stop at a convienece store come back wont start except with a small shot of Ether I know its a bad thing try to keep it to a short spray We figure this is a Hpo system issue Hpop was replace in 12/09 along with the J tube have also replace the upright tubes and the braided hoses I believe the y branch tube is the only one not yet replaced
on the Injector Issue we arre leaning towards Wire harness' ssems that is the only thing that would keep just those two injectors out/ dont understand why they would pickup at a higher RPM if it was an oil pressure or fuel issue wouldnt that affect all the injectors across the board?
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Have some other current issues also Ac cuts out like it would do if the fan is not working or pulling a hard grade with a load When you say it "cuts out", do you mean it stops working entirely, or does the air only blow out the defroster?
Have a No start/Hard Start condition after driving ie stop at a convienece store come back wont start except with a small shot of Ether I know its a bad thing try to keep it to a short spray We figure this is a Hpo system issue Hpop was replace in 12/09 along with the J tube have also replace the upright tubes and the braided hoses I believe the y branch tube is the only one not yet replaced It does sound like an HPO problem...here's a great checklist for a no-start condition. It's from the tech folder thread at the top of this forum: https://www.ford-trucks.com/forums/8...condition.html
on the Injector Issue we arre leaning towards Wire harness' ssems that is the only thing that would keep just those two injectors out/ dont understand why they would pickup at a higher RPM if it was an oil pressure or fuel issue wouldnt that affect all the injectors across the board?
Have a No start/Hard Start condition after driving ie stop at a convienece store come back wont start except with a small shot of Ether I know its a bad thing try to keep it to a short spray We figure this is a Hpo system issue Hpop was replace in 12/09 along with the J tube have also replace the upright tubes and the braided hoses I believe the y branch tube is the only one not yet replaced It does sound like an HPO problem...here's a great checklist for a no-start condition. It's from the tech folder thread at the top of this forum: https://www.ford-trucks.com/forums/8...condition.html
on the Injector Issue we arre leaning towards Wire harness' ssems that is the only thing that would keep just those two injectors out/ dont understand why they would pickup at a higher RPM if it was an oil pressure or fuel issue wouldnt that affect all the injectors across the board?
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From: Mojave Desert
Thanks for the reply Steve These are new / Reman ijectors from Dealer I guess anything is possible
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From: Mojave Desert
When you say it "cuts out", do you mean it stops working entirely, or does the air only blow out the defroster?
The Fan continues to blow but the Cold air stops
update on this ran 30 miles pulling moderate grades with a Heavy cross wind yesterday heavy acceleration at freeway speeds Cooling fan runnin hard 100 degrees outside Ac never quite blowing cold till pulled of the freeway then would not blow cold until i turned off control switch for 5-10 minute then only worked for a few minutes before started blowing humid warm air again
The Fan continues to blow but the Cold air stops
update on this ran 30 miles pulling moderate grades with a Heavy cross wind yesterday heavy acceleration at freeway speeds Cooling fan runnin hard 100 degrees outside Ac never quite blowing cold till pulled of the freeway then would not blow cold until i turned off control switch for 5-10 minute then only worked for a few minutes before started blowing humid warm air again
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From: Mojave Desert
does it sound possible all these issues are related or they might be 3 different problems