03 6.0 Diesel problems

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Sep 16, 2013 | 01:41 PM

rockenr

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03 6.0 Diesel problems

My 03 starts fine when cold but runs like crap untill it warms up. After it warms up it starts like crap. When it's cold I can barely get the rpms to 2500 in 1-3 gear. Gets up to 3000 rpm in 4-6 then when it warms up things work better but starts hard. Took it to ford and got the egr error code. Replaced it, no help. Heard it could be a high pressure oil leak. Would this cause all the symptoms I've mentioned. thx

Last edited by rockenr; Sep 16, 2013 at 01:43 PM. Reason: wrong question

Sep 16, 2013 | 04:39 PM

BigOl04

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From: Derby, ks

sounds almost like a oil or inj problem. oil press controlls the inj.. do you have a oil press gauge?

Sep 16, 2013 | 04:44 PM

Magnus E

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From: Danbury, CT

Just have to ask...aftermarket oilfilter cap?

Sep 16, 2013 | 05:35 PM

Tom

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From: Isanti, MN

Hi rockenr,

I'm going to move this down to the 6.0L forum, you should get some more help down there.

Sep 16, 2013 | 05:58 PM

npccpartsman

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From: Stuttgart, Ar

Rockenr: Please post the specific code you got. It will help with diagnostics. If you can't remember it then most auto parts stores can and will scan it for free. Yours doesn't sound like a high pressure oil leak to me. Usually an HPO leak won't let it start or be very difficult to start.

Sep 17, 2013 | 10:47 AM

rockenr

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Threw code P0404

P0404 code came up. Pointed to egr valve. Replaced with rebuilt. No change.

Sep 17, 2013 | 10:49 AM

rockenr

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No just the idiot oil gauge that shows a little less than 3/4 the way up.

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Sep 17, 2013 | 10:53 AM

rockenr

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It starts hard when hot but when it's cold it fires right up usually. When hot about 10 seconds and sometimes I have to try it twice to go.

Sep 17, 2013 | 01:06 PM

#10

POORBOY1964

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From: Riverton UT.

It really does sound like a HPO leak do you have a way to monitor the motor?

Sep 18, 2013 | 02:33 PM

#11

rockenr

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No Guess it's back to the ford garage.

Sep 18, 2013 | 02:42 PM

#12

BPofMD

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From: Millersville, MD

Cheaper to go to Auto Zone and buy a Scan Gauge!!!!!

Sep 18, 2013 | 03:00 PM

#13

npccpartsman

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From: Stuttgart, Ar

Quote:

Originally Posted by rockenr

Just had the oil cap replaced when I took into a local garage. I'm sure they got the cap out of car quest.

It's possible that the oil is leaking out of the filter housing because of an ill fitting filter (non-OEM fiter). They've been known to cause starting issues.