Horrible Cold Start!!! Please Help!!!! - Ford Powerstroke Diesel Forum
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  #1  
Old 03-26-2013, 08:03 PM
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Horrible Cold Start!!! Please Help!!!!

Just did glow plugs and glow plug relay running rotella 15w/40 thinking injectors? Getting ready to do 80hp injectors anyways may this help? Is there something im missing????
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Old 03-26-2013, 08:58 PM
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Same boat here, I'm getting ready to do injectors next because so far I've done:
Glow plugs
Gpr
Both batteries
Alternator
Starter
Fuel filter
... I'd say its CPS, IPR, or injectors on your e d
Most likely injectors
This weekend I'm changing the CPS and IPR
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Old 03-26-2013, 09:13 PM
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how cold is it when you try to start the truck?
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Old 03-26-2013, 10:41 PM
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i have some bad cold start issues too and i'm discovering that the problem is with thick oil in the injectors causing stiction when cold. i'm running 15w40 rotella and it's looking like that oil is too thick. a lighter viscosity will allow the injectors to work better when the oil is cold.

i just picked up a bucket of 15w40 that i think i am going to return now and try to find some 5w40.

just my thoughts. my glow plugs all test good, i have a white rodgers relay in the truck, i replaced the o-rings recently and the truck runs perfectly when warm. my next step will be a different oil.
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Old 03-27-2013, 08:16 PM
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im thinking 10w40 next oil change and not really cold but if i have it pluged in it seems fine. maybe just below 0 degrees but thats not to bad. im gonna take a look at my icp and maybe replace that
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Old 03-27-2013, 09:10 PM
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This should be in the motor section under powertrain. Just saying..

Id do a compression check btw
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Old 03-27-2013, 10:36 PM
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i've done lots of searching in google in the past few days relating to powerstrokes and rotella 15/40 compared to t6 and i'm sold on the t6. everyone that has actually tried it has never looked back and is flabergasted with the results.

there are a lot of rotella 15w40 users that are too diehard to acknowledge the claims of easy starts, better running all around and longer oil change intervals so they end up beating the other guys down for "buying into the synthetic hype"

i picked up 15 litres of t6 today that is going into my truck this weekend. hella expensive but i am expecting good things.
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Old 03-28-2013, 02:45 PM
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synthetic oil makes these trucks start so much easier!
ive been running 5w-40 synthetic and its much better in the cold, plus im gonna go longer between oil change intervals.
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Old 03-30-2013, 12:11 AM
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i changed my oil today and put in rotella t6. i'm hoping for good things to happen. i'm leaving the block heater unplugged for a while to see what happens.

it does seem like the engine is running quieter, there used to be a loud tick like an exhaust manifold leaking that i could clearly hear through the firewall while driving. it seems like it has faded away. standing outside of the truck while it's idleing seems to be a little quieter too.
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Old 03-30-2013, 10:26 PM
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i let the truck sit for 24 hours and then started it up. this would usually mean a rough cold idle. i cranked it over without waiting for the glow plugs and it started up smoothly and went straight into high idle mode.

the truck has never done this in the two years i've owned it. it would always take a few seconds to start and then would chug at low idle for about 30 seconds before kicking into high idle.... sometimes. then it would have a definite miss for a few minutes of driving.

i now believe that rotella t is too hard on the injectors. rotella t6 or probably any synthetic 5w40 is the perfect oil.

it is hard to spend $140 on an oil change though but it seems to be well worth it.
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