Fuel Locking the cylinder - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 03-12-2010, 06:14 PM Thread Starter
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Fuel Locking the cylinder

I have an 03 early build 6.0. It lost one injector at all times and was skipping on two when cold. I replaced all three injectors, 3-2 and 8. Started good. Ran about 4 miles and felt like it ran out of fuel. Stopped and restarted. Ran quarter of a mile and did the same thing. This time motor was locked solid. Pulled codes found 1 and 7 contrib codes. Assumed new injector on that side was at fault. Pulled injector, still solid pulled 1 and then 5, boom cloud of fuel.

Replaced #5

Ran for about two mins and same happened again. Pulled 1,3 and 5 no fuel. Pulled 7 no fuel obvious but lock gone. Got supplier to swap out new injectors. Refit same again !

Help what is going on. Going to replace 7 tommorow as a long shot. I changed all seals each refit. No fuel in oil or coolant. Does not lock till truck has ran for a couple of mins.

Found out the problem is an injector cup. I hope !

DRIVEN TO DISTRACTION BY FIX OR REPAIR DAILY

Love my truck, but hate the reliability. Love the look of the 2011 if its RELIABLE


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Last edited by sweetdeeillusion; 03-13-2010 at 06:37 PM. Reason: update
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post #2 of 8 Old 03-13-2010, 08:07 PM
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I would recheck all the injectors you replaced orignally, sounds like you cut an o-ring on one of them.
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post #3 of 8 Old 03-14-2010, 04:42 AM Thread Starter
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I pulled all the glow plugs and found # 8 was the culprit. Pulled the injector and found the bottom o ring blowing by. Replaced the o ring and with just fuel pump running it refilled the combustion chamber with fuel. Checked the injector,could not see any faults so changed the injector. Same thing, I am thinking the cup is some how damaged. I am not sure but think I can change the cup without pulling the head. Tried researching on line and found a guy selling a tool.

Makes sence of the way it failed. I torqued down the injector, but either I already had a faulty cup or I did not seat the injector somehow correctly. I can only assume that pulling the injectors on the RH side released enough compression to allow the starter to compress and blow out the fuel in #8. The fuel disposed by #5 was drop compared to the amount that came from #8.

DRIVEN TO DISTRACTION BY FIX OR REPAIR DAILY

Love my truck, but hate the reliability. Love the look of the 2011 if its RELIABLE


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03 Ford F250 7.3 Lariat Crew Cab 4X4
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Last edited by sweetdeeillusion; 03-14-2010 at 04:48 AM. Reason: UPDATE
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post #4 of 8 Old 03-14-2010, 04:59 PM
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does the truck start fine after it has set for a while & after a few minutes of idle starts smoking like crazy i helped mechanics change injectors on an 03 twice where i work same symptoms ended up being busted injector sleeve on the #5 cylinder
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post #5 of 8 Old 03-14-2010, 06:20 PM Thread Starter
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Exactly what it did. #8 for me tho.

DRIVEN TO DISTRACTION BY FIX OR REPAIR DAILY

Love my truck, but hate the reliability. Love the look of the 2011 if its RELIABLE


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post #6 of 8 Old 03-15-2010, 04:47 PM
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the injector sleeve can be changed without pulling head the truck i was telling you about, we put two full sets of injectors in it before we found the busted sleeve
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post #7 of 8 Old 03-16-2010, 02:13 PM Thread Starter
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Made the extractor and installer today. Got the sleeves, as Ford calls them, today also, $2.16 for 4 ! Going to fit it tonite.

DRIVEN TO DISTRACTION BY FIX OR REPAIR DAILY

Love my truck, but hate the reliability. Love the look of the 2011 if its RELIABLE


Certified Detroit-MBE, Cummins and CAT Diagnostic/Drivabilty and Electonics Tech.

05 Ford F350 6.0 King Ranch Crew Cab Dually FX4
03 Ford F250 7.3 Lariat Crew Cab 4X4
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post #8 of 8 Old 03-16-2010, 02:33 PM
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Quote:
Originally Posted by sweetdeeillusion View Post
Made the extractor and installer today. Got the sleeves, as Ford calls them, today also, $2.16 for 4 ! Going to fit it tonite.
subscribing, good luck I hope this fixes the problem!!

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