Archived Truck died and p1688

[boone]

2001 truck w/81k miles died right on the way home from work. Got two P1688 codes.



The question isn't whether or not to replace the lift pump, it's whether or not I need a new inj. pump. :{



How can I tell and where can I get one fast? (other than DODGE)

 

[JEccles]

i would just look in the phone book for a diesel shop near you, get them to check the codes and make sure it is the injection pump for sure.

 

[boone]

:{ After searching through the "911 archive" I am now certain that the VP44 is a gonner. I did find an upgraded Bosch VP44 from Blue Chip so I'm going to order it this a. m. along with a Low Fuel pressure warning kit. I,m also ordering a new FASS pump to replace the faulty LP.



The worst thing about all of this was that I new time was running short on upgrading the lift pump, but didn't have the funds. Now the whole thing is going to cost me a lot more.



Now the question is how hard is it to replace? Any special tools?

 

[boone]

New Pumps installed but a little smokey

I got an upgraded VP44 injector pump from Blue Chip and a FASS High Performance lift pump. The truck is running but there seems to be more smoke than usual. Is the VP44 pump for a standard ISB the same as an ISB HO?

 

[Andy Redmond]

I got an upgraded VP44 injector pump from Blue Chip and a FASS High Performance lift pump. The truck is running but there seems to be more smoke than usual. Is the VP44 pump for a standard ISB the same as an ISB HO?

Differences exist between the ETC's pump (standard) and ETH (HO) pump.







DD also offers a upgraded pump, no sure what the voodoo is, but likely flows more fuel since one of their sites touts hp increase, so maybe there's your extra smoke (extra fueling).



Good luck

Andy

 

[John Robinson]

I Stock & sell bosch re-man vp44, $1100. 00 with bosch warranty