c94 injectors
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Freshman User
Joined: May 2004
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c94 injectors
Ive got an 01/o1/03 truck ,I see alot of posts about the c94 injectors, are the problems mechanical or electrical,by the time I smell fuel in the oil, Ive allready washed the bearings. What was the symptom,before the dealer sighted the injectors as the problem.
Logistics Pro
Joined: Nov 2002
Posts: 4,788
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From: Mansfield, TX USA
The C94s are prone to side loading on the plungers, which causes the plungers to scuff up and leak.
A rising oil level is the best way to check for fuel in oil. If you catch it early, you should be OK.
A rising oil level is the best way to check for fuel in oil. If you catch it early, you should be OK.
Post Fiend
Joined: Oct 2002
Posts: 11,314
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I have 29K on my 6.0 and am pretty sure I have the c94's, but have not had any issues with them....
I have a 100K extended warranty and you have at least a 100k engine warranty, so the way I look at it, if it fails I get me another engine !
I have a 100K extended warranty and you have at least a 100k engine warranty, so the way I look at it, if it fails I get me another engine !
FTE Leadership Emeritus
Joined: Jan 2003
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From: 3rd Rock
Originally Posted by catrepair
ok tim,now you got me scratching my head, sump oil level, relates to injectors in what way?
Foam is tuff to pump and maintain PSI
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Elder User
Joined: Oct 2003
Posts: 653
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From: Florida
And when the injectors leak, the excess fuel runs past the piston rings, dilutes the oil, and bad things happen. I check the oil leel at least every fill-up, and often in between. If it rises, or I smell diesel fuel on the dipstick, I know there's a probelm. 01/03 engine, 32,000 miles so far no injector failures, but I'm still testing every oil change.
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Joined: Jan 2003
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From: 3rd Rock
Originally Posted by dpoelstra
25,000 on my C-94s with no problems. It seems that the guys who have problems with them have the problem very early. Has anyone had problems after 20,000 or so?
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Elder User
Joined: Nov 2003
Posts: 695
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From: Southern California
Fm Tim
Quote:
Originally Posted by dpoelstra
25,000 on my C-94s with no problems. It seems that the guys who have problems with them have the problem very early. Has anyone had problems after 20,000 or so?
I think that is a very importatn point
Quote:
Originally Posted by dpoelstra
25,000 on my C-94s with no problems. It seems that the guys who have problems with them have the problem very early. Has anyone had problems after 20,000 or so?
I think that is a very importatn point
Not withstanding anything to the contrary contained herein,
I do not authorize any flashing/reflashing of any of this
Truck's computers; This prohibition is of the essence.
Just A Thought...............on...............My Perceptions................
Senior User
Joined: May 2002
Posts: 484
Likes: 1
From: Garden Grove USA
I was not aware that the reflash had anything to do with the C-94 injectors going bad.
I bought my truck in 5/03, with a 3/03 engine build date. The dealer immediately replaced the PCM and reflashed under a recall, and the tech said that they thought this was part of the injector problem fix.
Any feedback on this?
I bought my truck in 5/03, with a 3/03 engine build date. The dealer immediately replaced the PCM and reflashed under a recall, and the tech said that they thought this was part of the injector problem fix.
Any feedback on this?
Elder User
Joined: Oct 2003
Posts: 653
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From: Florida
I had that same flash, It was before I knew better. That one takes away the Pilot Injection, but I don't think it does squat for curing the problem with the c94's. Their problem is mechanical, the design of the shoulder of the injector makes it succeptible to wear and binding. If you look at a cutaway of the c94 and c95 side to side you can see the difference. I hope the theory that they fail early is right and that I'm past the danger......but I'm still checking the oil.