e99 problems towing

[r_marczak_83]

My e99 has AD injectors, 140v mod, boost anialator, 6637 filter, rebuilt tranny, 4" straight turbo back, DP-Tuner chip (stock, 60t, 80e, 120, 140).

This is my first diesel. My dissapointment came when I hauled a mid sized suv on a 16' trailer. On flat ground it seemed like a chore to get up and going. At 65 mph when I hit a medium hill, it would downshift to 3rd and would loose speed with me on it @ 2800 rpm. The turbo was boosting like mad too (or so it sounded like it). I tried it on stock and 60t and it struggled with both.

Do these trucks just suck at towing or am I not aware of something wrong?

[Jarrod B]

weird. my e99 hauled a loaded car on they hwy with cruise and kept the speed at 70.

[JSchuricht]

Something is wrong. What's your boost, EGT, fuel pressure and ICP? Also when did you last change fuel and air filters?

[r_marczak_83]

I don't know what my boost, egt, fuel press, or icp are as I have no way to tell. Fuel filter I changed 6-7 months ago. Air filter was added 4 months ago and looks fine.

[EOGeer]

Wow my E99 will fly up the Grape Vine in Cali at 65 in overdrive with 18' trailer loaded down with the Jeep two quads and all our camping gear.

There is something wrong with your pickup, you need to get a set of gauges to read your pickups vitals to start with.

Did you put those injectors in or did it come with them? You may need to do an HPOP to get more oil to them if not already done.

[r_marczak_83]

I did the injectors after I got the truck. The HPOP is the factory 15* with 271,000 miles on her. Is there that big of a difference in the two types of pumps?

[EOGeer]

The factory oil pump does not push enough oil for bigger injectors. If you do some searches on here you will find out all u need to know about HPOP's.

[HVAC SuperTech]

did you ever get a SES light? you need to start with guages and see whats going on. sounds liek either you lost fuelpressure or oil pressure from your hpop. if you didnt get a SES light, it is likely its related to something in the fuel system, as that doesnt give a SES light

[EOGeer]

He dosn't have an HPOP he is still running the stock pump..

[HVAC SuperTech]

the stock pump IS an HPOP. its just a 15* pump versus a later model 17* pump....

EDIT: the engine low pressure pump(typically anyhwere from 20-45 PSI depending on speed and idle and such) feeds engine and the resivior on the front of the engine. Then that resivior feeds the HPOP(anywhere from 2000-3000 PSI depending on quality of the pump, injector size, ect) which flows oil to your injectors.