Hesitating Start

[ammobooger]

I have a 2006 F250 Lariat with 90,000 miles on it. Bought it used about 8 months ago so I'm not sure of any mods to it. The problem I am having is last week the temp here in SD got down to -20 range. Truck started fine then make it to an intersection aobut a mile from the house and fuel gelled. I cranked on it for a bit(I know this isn't the best thing to do) and finally got it started, added more Howes and had no other problems for the rest of the day. Go to start it the next day, wait for wait to start light to go out, turn the key and nothing, no click no nothing. Radio, accessories, everything else works, just nothing when I turn the key. After trying for another 5 min, finally fires right up. No problems for the rest of the day. Then next day same exact thing. No click or anything, radio etc. work. 5 min of trying, then fire and no more problems rest of day. Has been doing this everyday. Had batteries, and starter checked and they are good. The temp got into the 40's last Friday and it started fine that morning, but when temp dropped again same thing since. Any suggestions? Haven't checked fuzes yet but going to do that at lunch. -9 here this morning so didn't feel like checking first thing. Thanks in advance for any help.

[mmandley]

Welcome tot he site man. You can learn a ton of things here about the trucks.

Only thing i have to offer to your issue is are you hearing a buzzing when you turn the key on?

That is the injectors cycling and if they arnt cycling you wont start. Cold causes stiction which basically means the injectors stick and wont fire fuel.

You might need to get some Rev X and install that. Also check in the front bumper area for the heater block plug and use it.

[roary]

The other thing that someone mentioned recently, was that their relay seemed to be freezing up in the extreme cold. It may test fine when it is warmer, but actually be frozen when it is cold and not allow it to start.

[ammobooger]

Truck gets plugged in, and block heater is working and buzzing and everything working like normal too. Thanks for the site welcome. Were would i find the relay you mentioned?

[ammobooger]

Well it ended up being the FICM which is covered under factory warranty. Ford tech also said that the starter is loosing voltage, I think that's what he said, and that the left battery is losing charge and the right is dead. I just had the batteries checked 2 days ago at interstate batteries and they said they were both good. Is is possible that they are low on charge from them recreating the no start problem and they just need to be driven and recharged by the system? I'm changing the starter as they wanted $570+ to replace it.

[jeeplj8]

I would honestly be more suspect of how the battery place "tested" them. Putting a volt meter on them is not actually testing them.

With that said, have you gotten the truck back yet? How does it start? New batteries can be had for less than 80 bucks each, and it pretty quick to put them in.