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6.4 Cold Start

Posted: Sun Dec 10, 2017 3:56 pm
by HeavyDuty
My ‘17 6.4 has this weird issue at around -10 c
If I use remote start at around this temp. The engine cranks longer than norm (about 3-4 secs) then stumbles and burps a few times then dies. Of course then remote start is cancelled. I have no issues when it’s warmer. And it starts great at -20 or below temps. Has anybody heard or had any issues with this as well?

Re: 6.4 Cold Start

Posted: Sun Dec 10, 2017 9:51 pm
by olyelr
I have never heard of anybody having issues like that. That is definitely odd. I have never even used my remote start :lol:

So your saying it works fine when it gets even colder?

Re: 6.4 Cold Start

Posted: Sun Dec 10, 2017 9:58 pm
by HeavyDuty
Ya. It’s starts fine when it’s colder. Just bumbles and farts when it’s around -10.

Re: 6.4 Cold Start

Posted: Mon Dec 11, 2017 12:28 pm
by Bill2014
Have the dealer re-flash it. Something is wrong with your fuel-air map. :popcorn: