HELP!

[BFRT_King Ranch]

Ok, so 2 months ago i head the egr deleted, oil cooler replaced, a new stat put in, and arps installed.. Just this past week i had an injector replaced, ICP sensor replaced, and glow plug harness replaced.. After getting the egr done, oil cooler, and all that stuff the truck ran brilliantly for 2 weeks or so then starting acting up.. Hard to crank in the morning (takes 3 or 4 trys before it fires up and shoots out thick black smoke each attempt), and terrible gas mileage. Just this past week the CEL came on and diagnostics test revealed injector 7 was low, icp sensor was bad, and glow plug 6 was bad.. I figured the injector was the problem and got it back from the shop from yesterday and its still doing it! What else could it be?!!? FICM checked out at 48v! Im out of ideas and getting frustrated after dumping well over 4 grand into over the past 2 months.. Before i had did the preventative maintenence stuff and had the egr deleleted, new oil cooler installed, and arps's put in it wasnt giving me any problems..

[californiadreamin]

yikes man...good luck, hopefully someone who knows will chime in. Does it start fine once its warm??

[BFRT_King Ranch]

Originally Posted by californiadreamin

yikes man...good luck, hopefully someone who knows will chime in. Does it start fine once its warm??

Yea, after the initial crank for the day it fires right up... Its just the morning crank giving me crap, but my gas mileage has went down from about 15/16 to 10ish..

[Dicion]

When did you check the FICM Voltage? While it was running? While it was sitting? While it was cranking?

Have you checked your fuel pressure? Both while running and while starting. Too low will cause starting problems and damage injectors.

Try Rev-X in your oil. Hopefully it'll help your injectors some if theyre sticking or having other problems.

[BFRT_King Ranch]

Originally Posted by Dicion

When did you check the FICM Voltage? While it was running? While it was sitting? While it was cranking?

Have you checked your fuel pressure? Both while running and while starting. Too low will cause starting problems and damage injectors.

Try Rev-X in your oil. Hopefully it'll help your injectors some if theyre sticking or having other problems.

FICM was checked when it was at the shop getting the injector replaced, and ICP sensor replaced.. It was checking while cranking and running and was 48 volts across the board..

I have not checked fuel pressure.. How do i check that? I know it needs to about 60psi or so correct? But how can i check while running and cranking to ensure I am getting enough fuel? My pump itself is new, about 8 months old, but i dont think i have the updated blue spring...

[white59rt]

When was the last fuel filter done?

Also it sounds like maybe you batteries might be weak? When was the last time they were checked or replaced?

Todd

[BFRT_King Ranch]

Originally Posted by white59rt

When was the last fuel filter done?

Also it sounds like maybe you batteries might be weak? When was the last time they were checked or replaced?

Todd

Fuel filters havent been too long, maybe 5k miles tops.. Both batteries and the alternator were replaced in March.. They should be good.