code on #8 cylinder, blowing oil ,clattering - Ford Powerstroke Diesel Forum
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Old 12-21-2007, 06:11 PM
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code on #8 cylinder, blowing oil ,clattering

I've got a 2000 f-250 7.3, 225,000 miles. it started knocking so I stopped and checked the oil and it was fine but it was leaking oil on the passengers side on top somewhere and looks like its blowing out of the dipstick tube also it started blowing white smoke heavily and started missing and loosing power. I got it home and parked it.It sat for 2 weeks and I started it a few times to run some diognostics tests which said there was a problem with the # * cylinder.But now the knocking has stopped but it still won't run right.My question is would injectors cause this type of problem
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Old 12-21-2007, 06:19 PM
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it sounds to me like you have lost compression on that cylinder , possibly injector ,if you are blowing oil out of dipstick its probably from all the compression getting into the crankcase
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Old 12-23-2007, 03:37 PM
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Scuffy is probably right, you need to check the cylinders for proper compression, My '00 had buggered rings on #7, and no compression. The no/low compression may set of a lot of other issues like hard starting, misfiring, and trouble codes regarding the High pressure oil system not able to maintain/control pressure
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Old 12-26-2007, 09:44 AM
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See details of this part listing for #8 cylinder...



Powerstrokeshop.com
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Old 12-26-2007, 09:57 AM
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Could be a head gasket. White smoke is a combination of antifreeze and oil leaking into cylinder and causing bad crankcase pressure as well as being burned and you seeing white smoke. My first test would be for compression on that head before I would buy anything.
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Old 12-26-2007, 11:09 AM
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doubt very seriously its a headgasket on a 7.3
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Old 12-26-2007, 11:42 AM
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Quote:
Originally Posted by SCUFFY828 View Post
doubt very seriously its a headgasket on a 7.3

+1 on that. Every tech I've talked to on headgaskets for the 7.3 has said it's damn near impossible. It IS quite common for other vehicles with these symptoms but not the 7.3. Before it's a head gasket it's usually injector cups, UVC harness connectors, CPS, and the worst would be the head itself could be cracked.

Check some of my other threads for the diagonsis on your #8 injector cup. You just pull the injector and do a cooling system pressure test to see if it's the cup...also known as the injector sleeve. Part # F4TZ9F538A About $12 through PSSD.com
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