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Old 12-28-2011, 01:05 PM
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Another cold start question

I have an '05 with about 160k miles. Lately with the colder weather I have noticed it runs a bit rough after starting. It starts right away (maybe 2-3 seconds) after letting glow plugs warm up, but then after starting it will sputter a bit for maybe 10-15 seconds before smoothing out. Seems to start fine when plugged in. Seems to start ok down to about 30 degrees then gets worse as it gets colder out.

I have new Alliant injectors AP60901, fuel filters, oil change with Ford 10w30 conventional, and blue spring upgrade within the last 500km. FICM shows 47 to 47.5 whether starting or running according to my scanguage and no codes.

I am not sure what else to check. Could it be glowplug issue?
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Old 12-28-2011, 05:40 PM
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Originally Posted by Thetuscanyguy View Post
I have an '05 with about 160k miles. Lately with the colder weather I have noticed it runs a bit rough after starting. It starts right away (maybe 2-3 seconds) after letting glow plugs warm up, but then after starting it will sputter a bit for maybe 10-15 seconds before smoothing out. Seems to start fine when plugged in. Seems to start ok down to about 30 degrees then gets worse as it gets colder out.

I have new Alliant injectors AP60901, fuel filters, oil change with Ford 10w30 conventional, and blue spring upgrade within the last 500km. FICM shows 47 to 47.5 whether starting or running according to my scanguage and no codes.

I am not sure what else to check. Could it be glowplug issue?
The part in the bold WTH??? Get some good synthetic 5w-40. Just how new are them injectors? I know that dino oil is not good for the injectors in a 6.0 and I'm pretty sure that 10w-30 probably is not good either. Are the fuel filters Motorcraft?
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Old 12-28-2011, 05:47 PM
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10W30 diesel oil had been discussed and was actually helping stiction issues.
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Old 12-28-2011, 06:09 PM
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Originally Posted by jesilvas View Post
10W30 diesel oil had been discussed and was actually helping stiction issues.
Well learn something new everyday. Guess I never read that one. I just cough up the cash for the Amsoil and UOA every 3k and run til they tell me to change it.
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Old 12-30-2011, 06:36 AM
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I would change to a Rotella T6 oil and see if that helps with the cold start, it's a 5w40 synthetic making it a little thinner. If you're running rough after start, it's not a glowplug issue - it's either fuel or oil. Rev-X is a great oil additive to look into as well but if you're running new injectors you shouldn't have stiction issues yet. Have you put a fuel gauge on to confirm fuel psi after the blue spring?
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Old 12-30-2011, 09:11 AM
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I will try changing to synthetic to see if it improves and gauges are on order so will see what my fuel pressure is. I have a suspicion that fuel pressure is low still as I do notice some bucking under high load.
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Old 01-03-2012, 10:01 PM
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I recently started to have starting issues since switching to rotella t6 5w30. Starts 2-3 sec and runs rough . almost like a sticky injector? Has anyone else had this since switching? Not sure what to do
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Old 01-03-2012, 10:15 PM
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Do I get the blue spring from the ford dealer? Amy other ideas to try?
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Old 01-03-2012, 10:30 PM
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ya blue spring is from ford. check ur ficm vltage. should never go below 46v. if so, it should be sent in the ed at ficmrepair.com hes the best!!

FICM testing procedure - Ford Truck Enthusiasts Forums u can use this to test
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