Extended crank time

I’ve been battling extended cranking for about 3 months on my 2018 FlexFuel Tundra with 62,000 miles. It’s happening about once every 2 weeks (always first crank of the day), but sometimes occurs between trips around town etc. When the key is turned, the truck starts but it takes a few seconds. Sometimes the key must be cycled twice. Once started, the truck runs fine. No check engine light present, etc. I had the fuel pump replaced under the TSB/warranty about 3 years ago when my truck had about 25,000 miles on it. I was experiencing the same symptoms then, which prompted me to bring the truck in. I have scanned the truck with a Bi-directional scan tool to read the alcohol fuel %. It was about 1%. I always run 87 octane. I did the re-learn and reset the value anyway. It has made no difference. I had the battery, starter and alternator tested today by Oreilly’s and it was normal. I feel confident now that it is a fuel issue and not electrical. I have been very reluctant to bring it to the dealer due to having to leave the truck there, long wait time (they are going to want to reproduce the issue), etc, and I am over the powertrain warranty by 2,000 miles (62k). I am by no means an expert but it seems like I may be losing my fuel prime and that’s why the crank is extended. I was going to tap into the fuel rail and let the truck sit overnight to see if it drops, but from what I’ve gathered you have to splice into the system and it’s not particularly easy. I can’t find any literature or videos that actually show a step by step process for the 07-21 trucks. I am probably just going to take it to the dealer this week. Thanks for reading this long post.

ANY INPUT IS APPRECIATED!

 

Went through that for awhile myself. Thought I was going to get towed one day. Had low pressure fuel pump replace per the 3 year old recall. Fixed everything!

 

What years did the recall effect?

 

Not really sure. Mine is a 2019

 

I have a 2018, I better check

 

This might be one of the good cases for replacing the fuel pump. It’s part of the TSB, although it doesn’t solve most people issue of incorrect ALC% being stored. Yours seem to have a low ALC% stored (assuming you run no ethanol gas?) so that shouldn’t be your issue.

 

Me too. Thought I was good after they replaced the pump 3 yrs ago…but here we are again.

 

Yeah they’ve replaced the pump already and should have reprogrammed the ecu after per the TSB. We will see what they say…

 

affects FF trucks only. Wish I had bought non FF

https://static.nhtsa.gov/odi/tsbs/2019/MC-10170730-9999.pdf