Codes and hard start warm
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Codes and hard start warm
Hello
I have an f350 deisel
that is giving me some grief
programmer as showed a couple of codes
# 2 and #4 cyl P0266 CYLINDER 2 INJECTOR CIRCUIT CONTRIBUTION / BALANCE FAULT
Hard start when warm, rough idle when it does start then dies
mech buddy told me to let it sit for an hour , clear the codes and start
It worked!!
Help , We dont know what it is
mech saying bad fuel maybe
Injector # 5 replaced
EGR delete done
Blew up my turbo in feb , new turbo now
I have an f350 deisel
that is giving me some grief
programmer as showed a couple of codes
# 2 and #4 cyl P0266 CYLINDER 2 INJECTOR CIRCUIT CONTRIBUTION / BALANCE FAULT
Hard start when warm, rough idle when it does start then dies
mech buddy told me to let it sit for an hour , clear the codes and start
It worked!!
Help , We dont know what it is
mech saying bad fuel maybe
Injector # 5 replaced
EGR delete done
Blew up my turbo in feb , new turbo now
Last edited by peterparker666; Mar 16, 2014 at 12:12 PM. Reason: wording
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From: Huntington Indiana
Go back to the main page for the 6.0 and then click on the search key. Type in the p0266. You will find a lot of threads on the subject. It is becoming quite common problem. Hope this helps. I did read one thread and they figured it was a bad injector.
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it is a rebuilt engine bought 3 years ago 35000km on it now
Ive been reading some of the posts on the 0266 code
My issue is that once i let it sit for an hr and clear the codes it fires up with no coming back , this time for almost a week
Bad injector?
Altenator went two weeks ago also
My truck is giving me stress
Ive been reading some of the posts on the 0266 code
My issue is that once i let it sit for an hr and clear the codes it fires up with no coming back , this time for almost a week
Bad injector?
Altenator went two weeks ago also
My truck is giving me stress
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Hard Start Warm culprits:
Dummy Plugs
STC Fitting
ICP sensor/ pigtail
Stand Pipes
Most likely are dummy plugs. I wouldn't concentrate on the injector codes until the HPO system is healthy.
Josh
Dummy Plugs
STC Fitting
ICP sensor/ pigtail
Stand Pipes
Most likely are dummy plugs. I wouldn't concentrate on the injector codes until the HPO system is healthy.
Josh
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Most replace the DPs and SPs as a set. Dummy Plugs are available seperately, but avoid the Dormans.
A mechanic can air check the HPO system for leaks if needed.
However it's easier to pull the passenger valve and look to see if the DP have already been updated.
The STC fitting is more involved but the lot is cheap and highly recommend that it be replaced regardless if it shows signs if leaking
Josh
A mechanic can air check the HPO system for leaks if needed.
However it's easier to pull the passenger valve and look to see if the DP have already been updated.
The STC fitting is more involved but the lot is cheap and highly recommend that it be replaced regardless if it shows signs if leaking
Josh
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Set of Dummy Plugs (W302908) about $40, full set of DP&SP (6E7Z-9A332-B) about $120
What happens is the cold, thicker oil seals the o-rings on the dummy plugs and allows the HPO to fully pressurize. Once the engine is shut off and then tried to restart the oil is too thin to seal, and a major leak occurs.
Navistar updated the dummy plugs with a backer for the o-ring to prevent leaking and worn o-rings.
I would assume the rebuilt engine from Ford would have the updated STC fitting, but hard to tell without pulling the turbo and HPOP cover to look. The STC fitting was updated from a 2 piece design which would fail and have a major leak to a one-piece design. Part # 4C3Z-9B246-F and about $45.00
Josh
What happens is the cold, thicker oil seals the o-rings on the dummy plugs and allows the HPO to fully pressurize. Once the engine is shut off and then tried to restart the oil is too thin to seal, and a major leak occurs.
Navistar updated the dummy plugs with a backer for the o-ring to prevent leaking and worn o-rings.
I would assume the rebuilt engine from Ford would have the updated STC fitting, but hard to tell without pulling the turbo and HPOP cover to look. The STC fitting was updated from a 2 piece design which would fail and have a major leak to a one-piece design. Part # 4C3Z-9B246-F and about $45.00
Josh