Injector
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
You can take the chance that one injector will solve your problem, but most likely if one failed the other 7 are not far behind.
My injector story: last fall on a fishing trip to northern Minn Truck would not maintain 55. stopped at Ford dealer in Owatonna. 1 injector and two hours later back on the road. still under warranty so only 100.00 charge.
got home a week later and it started acting up again. took it to local dealer they advised two injectors failed and HFCM (pump) failing causing low fuel psi. two new injectors and HFCM & fuel psi regulator up-date (Blue Spring) good to go again. No deductible already paid it WHEW! so I ask about the other injectors Knowing they were probably damaged they advised no codes yet so Ford would not replace, kind of worried me but I understood no codes no replace them. About six weeks later it started doing it again so back to dealer and the remaining 5 were changed. So IF you first injector that failed was caused by low fuel PSI it has most likely damaged the rest of them and now its Just a matter of time. Oh I almost forgot My local Dealer Dewey Ford Took great care of me through the whole thing it was a bit stress full waiting for the next ones to quit but at least on the third trip in they were able to get the remaining ones changed out and it did not cost me anything more than my original 100.00 deductible. Thank You FORD!!
So if you can determine it is injector failure & have the funds do them all if not its a gamble, Good Luck!!!
My injector story: last fall on a fishing trip to northern Minn Truck would not maintain 55. stopped at Ford dealer in Owatonna. 1 injector and two hours later back on the road. still under warranty so only 100.00 charge.
got home a week later and it started acting up again. took it to local dealer they advised two injectors failed and HFCM (pump) failing causing low fuel psi. two new injectors and HFCM & fuel psi regulator up-date (Blue Spring) good to go again. No deductible already paid it WHEW! so I ask about the other injectors Knowing they were probably damaged they advised no codes yet so Ford would not replace, kind of worried me but I understood no codes no replace them. About six weeks later it started doing it again so back to dealer and the remaining 5 were changed. So IF you first injector that failed was caused by low fuel PSI it has most likely damaged the rest of them and now its Just a matter of time. Oh I almost forgot My local Dealer Dewey Ford Took great care of me through the whole thing it was a bit stress full waiting for the next ones to quit but at least on the third trip in they were able to get the remaining ones changed out and it did not cost me anything more than my original 100.00 deductible. Thank You FORD!!
So if you can determine it is injector failure & have the funds do them all if not its a gamble, Good Luck!!!
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Yep time to add the blue spring. 45 is low.
Also when do you think the fuel filters were last changed.
a plugged filter will also lower the pressure.
Oh almost forgot Rusty did a very good write up on
installing the blue spring kit. There a few different ways to
buy that kit too. From Ford it comes with a new cover or if
you know the part number without a cap and from International
Harvester (Navistar) where I got mine came with out the cover
and cost a lot less. But they seem to be less on parts then Ford.
If you ask someone can post the IH part # I think the kit was about
$35 vs the Ford at over $60.
Sean
Also when do you think the fuel filters were last changed.
a plugged filter will also lower the pressure.
Oh almost forgot Rusty did a very good write up on
installing the blue spring kit. There a few different ways to
buy that kit too. From Ford it comes with a new cover or if
you know the part number without a cap and from International
Harvester (Navistar) where I got mine came with out the cover
and cost a lot less. But they seem to be less on parts then Ford.
If you ask someone can post the IH part # I think the kit was about
$35 vs the Ford at over $60.
Sean
Posting Guru
Joined: Jun 2012
Posts: 1,171
Likes: 2
45 psi is too low, even if that pressure is called out in the ford documents. It must be at least 50 psi under full load conditions, NOT at idle. My story is similar to IABILL's, lost injectors under load, found idle fuel pressure was 45 psi but full load was only 40 - 42, and all eight injectors were replaced along with the HFCM and the spring upgrade. My dealer stood tall and paid for the whole mess, since I had just purchased the truck used from them two weeks earlier.
Thread
Thread Starter
Forum
Replies
Last Post
MarkSullivan
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
1
Nov 28, 2009 02:19 PM
