i got a quick question.ive noticed latley when its been cold and the truck needs or even doesnt need the grid it dont want to start on the first crank like it did before,but when it warms up it now takes a 2nd crank,the battery is new alternator new 1 1/2 years ago ,could it be the voltage regulator gone bad in the brain and i need to go to an external one?cause if i go out right now bout 35* it will sound like it just killed the battery,any help thanked and Merry Christmas

 

You saying it doesnt turn over very fast or the engine doesnt catch ?

 

Maybe the fuel lines aren't staying primed?

 

Is your KSB working? When I first got my truck the temp switch for the ksb was burnt up, so, cold starts were rough, and it would smoke and miss until it started to warm up. I replaced the switch and all was fine until yesterday. The plug on the pump that powers the whole circuit(at the FSS) lost it's connection, and cold starting made for it starting hard, stalling, and then missing and smoking up a storm on the second start. Fixed the plug, and all was fine this morning at -13 even after sitting for 2 hours not plugged in before I started it.... And, I'm short 1 grid relay....

 

I would blame hard starting from an electrics perspective more on the lack of grids. The KSB doesn't do anything to help starting. But like Matt said, there is no substitute for a tight fuel system.

 

My truck starts a bit harder without the 1/2 of the grids I have functioning(unplugged them a few times to avoid killing a low battery) but it doesn't start and stall like it without the grids like it will without the KSB working, my 6.9 was the same, no cold advance, and a guranteed hard start... No grids, it smokes, but, it still starts easier than it does without the KSB.
At more moderate temperatures, say 0F and above, I haven't noticed a difference, but, in real cold, I sure do.

 

I don't see how the KSB can advance anything until "after" it starts.

 

ksb no workie,i havent had time to play with that been trying to get the bumper done now i got mud flaps to get on,i turned up the idal to 850 and that seemed to help,i got to go out and check all the lines but a couple weeks ago i rechecked them just to and they were all good,though the plastic line could be the colprate in this case,until the airdog system gets ordered this next month.thanks guys let me go out and look and ill post this after noon.

 

its not turnin over fast,its slow like the battery is dead but it still has a charge,how do i check the alternator

 

Sounds like your starter is going south on ya. I would check it first if it was me.

 

thanks matt but why would it start this when it got cold

 

What group and cca size battery do you have?

 

the bus battery from napa, or i can try my optima yellow top group 31 from my gasser,cca i dont know off the top of my head

 

cca is around 900

 

What group and cca is your bus battery? If it's 900 and not a group 31, that's your problem. A 900cca small sissy battery won't do the job a group 31 900cca battery will do.