no power in first gear

[fordmansteven]

2006 6.0 just put truck back together and it dosent seem to have much power in first gear, also it blows white smoke after it warms up when sitting at stop lights. when truck comes up to operating temp it quit smoking. here is a list of what I did to the truck.
new heads
new icp
new ipr
head studs
new ford head gaskets
new ford injectors ( these were installed just before work)
new dummy plugs
cleaned turbo
bullet proof external oil cooler
:fustrate:

 

[Lassie]

Batt voltage good?

Checked FICM cold?

 

[fordmansteven]

the ficm is about 47 to 49 volts, but I did notice that the batt voltage is a little low 12.2 to 13.9. what would the volts have to do with it smoking

 

[fordmansteven]

anybody have any input

 

[Lassie]

If battery voltage is low, FICM can be stressed. The injector coils are going to pull the power they need, regardless of voltage...so current goes up. I've killed a FICM with a batt problem due to a bad alternator...and soon after lost two injectors.

And to answer your question about smoke, yes, FICM problems can cause smoke.

EDIT: I run batteries in these for three falls/winters max. Change before the fourth fall. Check your dates

 

[fordmansteven]

what would cause the lack of power in 1st gear. I hooked to the trailer today that had a 500 gal tank and my wildcat sxs and it would not pull it up the hill until I locked it in 4 low

 

[Tom S]

Torque converter sprag comes to mine if they are like they are on a 7.3 when they fail.

 

[Gary]

Is it making boost? Is the Y pipe to turbo joint leaking exhaust?

 

[fordmansteven]

it builds boost slowly when trying to take off, once rolling it makes good boost

 

[fordmansteven]

checked batteries today one is bad and the alt is no good, would this cause it not to have power in first gear

 

[MrOneEyedBoh]

I've got brand new batteries and mine is about 13.4-13.9

 

[Derkperk]

It must not have power in all gears. Will it pull your trailer in manual 2nd?
If you have a crap injector or 2, which could be caused by a bad ficm killed by bad voltage, you will be down on power and white smoke, raw fuel. Swap that battery and alternator and then see how it runs. Have to get the bases set before you can dig deeper.

 

[fordmansteven]

put two new batts in and new alt still no change. did have a up pipe leak fixed it put still same problem. when take off from a dead stop it smokes like crazy and builds boost slowly but when it get up to about 8 to 10 psi it takes off and will build up to 28 psi

 

[7.3powerstroke00]

Could be turbo vanes staying or stuck open? After seeing that it builds slow till 8-10 an takes off sounds More like a turbo issue that was accompanied by the bad batteries an alternator.... I saw where it said you cleaned turbo... Ebp sensor stopped up...

 

[fordmansteven]

where is the ebp sensor at, I didn't check it

 

[7.3powerstroke00]

Sensor is mounted vertical right next to the fuel filter housing and the thermostat.
look at the left exhaust manifold and youll see the stainless tube coming off the front of the manifold

 

[fordmansteven]

thanks will check it out

 

[7.3powerstroke00]

Check the tube and the sensor both, if stopped up brake cleaner works pretty good.

 

[fordmansteven]

checked ebp sensor was a little dirty cleaned it still no change. sensor seemed to be good

 

[fordmansteven]

any other ideas