I have a 99 cummins, once a week or soo I will get in it and try to start it and all it will do is turn over. I have been leaving the key on till the block heater shuts down and hit it with starting fluid and it will start and run fine. I know the block heater is good, i have took it off and watched it. Also if you let the truck sit and idle it will run fine for 5 min or so then it will miss and check engine light comes on. but before I can get code reader on it the light goes out. Any help or oppinions would be nice. thanks

 

i would still check for codes, could still be there just not kicking on the cel. then go from there sounds like a fuel problem to me for some reason but there is too much that could be the cause to just stab a guess into the dark

 

My truck is doin the exact same thing. My check engine light came on once for about 15 seconds and went away and it still wont start. Iv been told there could be water in the diesel but i dont know how check for it. Thats what i think is wrong with mine anyways.

 

you could try to drain the watter out of the water seperator, its in the fuel filter housing, there is a lever on there push it and drain the water out

 

Is that the one that has the drain hose. If so then iv already drained it
Twice, with the lift pump on.

 

please dont use starting fluid! you will be doing head gasket next. How cold is it there? take off your filter housing and look and see if any water is in it, change filter, and then do fuel preshure check at inj pump before you start truck. put guage on test fitting and just bump starter you should have 5-15 psi.

 

Lol startin fluid wont even start my truck. Iv tried. As for the lift pump pressure mines right at 15 psi. Its almost like trying to start a fourwheeler that has the run switch off thats on the left handlebar. If that makes sense to you.

 

do you have a 216 code on computer?

 

I don have a scanner and its not showin any codes when i turn the key on three times quickly. Not real sure if that works on 99s tho. All its showin is the check engine light.

 

As far as my truck, I have drain filter housing and changed filter, fuel presure never falls below 16 lbs. presure at pump is the same. I have never got a code to read a code, and unfortunatly i know about the death code.