I was todl by a number of "experts" that a low pressure fuel pump helps
especially when climbing hills etc. When my started to vapor lock, the folks at
Osburns put on a fuel pump underneath. Then when I went to Howell Electronic
Fuel Injection, they suggested I keep the pump. So I have two pumps. One a low
pressure pump, and then it goes through a filter and then the high pressure pump
to the injector. Works great.. That's my .02
al
> Here's the deal. Is not the electric fuel pump an add-on on these coaches. I
> do not find reference to this pump in the maint. manuals or in the Parts
> book. So, all of us that have these, they have been added, right? As I posted
> earlier, I usually disconnect a lead when I am working on my coach. Once I
> forgot to reinstall it and quickly discovered that the girl was struggling
> trying to climb a hill. On the flat, it was okay. I reinstalled the lead and
> all was right. So, could it be that my engine fuel pump is shot, or at least
> semi-shot? My previous experience is that a fuel pump (mechanical) is either
> alive or dead. If it is semi-dead, is this mech. pump standard PepBoys fare
> or Cinnabar? If I thought the gmc would run without an electic pump running co
> nstantly, I would install a switch as suggested by others. Your student is in
> his seat and waiting for the professor(s). Larry in MO, PB75
especially when climbing hills etc. When my started to vapor lock, the folks at
Osburns put on a fuel pump underneath. Then when I went to Howell Electronic
Fuel Injection, they suggested I keep the pump. So I have two pumps. One a low
pressure pump, and then it goes through a filter and then the high pressure pump
to the injector. Works great.. That's my .02
al
> Here's the deal. Is not the electric fuel pump an add-on on these coaches. I
> do not find reference to this pump in the maint. manuals or in the Parts
> book. So, all of us that have these, they have been added, right? As I posted
> earlier, I usually disconnect a lead when I am working on my coach. Once I
> forgot to reinstall it and quickly discovered that the girl was struggling
> trying to climb a hill. On the flat, it was okay. I reinstalled the lead and
> all was right. So, could it be that my engine fuel pump is shot, or at least
> semi-shot? My previous experience is that a fuel pump (mechanical) is either
> alive or dead. If it is semi-dead, is this mech. pump standard PepBoys fare
> or Cinnabar? If I thought the gmc would run without an electic pump running co
> nstantly, I would install a switch as suggested by others. Your student is in
> his seat and waiting for the professor(s). Larry in MO, PB75
