YJ fuel pump
09-04-2006, 04:52 PM
#1
Guest
Posts: n/a
YJ fuel pump
My 95 YJ takes more cranking to start than what seems normal. In a
previous thread it was suggested to turn the key without cranking for a
few seconds to allow the fuel pump to pressurize the system before
cranking. When I try this I don't hear the pump working and no relay
sounds. Is it possible that the pump is wired wrong and only works
when cranking and when the engine is actually running?
Thanks
09-05-2006, 07:37 PM
#2
Guest
Posts: n/a
Re: YJ fuel pump
Not sure about the pump wiring but if you are getting a gassy smell after
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
09-05-2006, 07:37 PM
#3
Guest
Posts: n/a
Re: YJ fuel pump
Not sure about the pump wiring but if you are getting a gassy smell after
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
09-05-2006, 07:37 PM
#4
Guest
Posts: n/a
Re: YJ fuel pump
Not sure about the pump wiring but if you are getting a gassy smell after
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
starting check this (from previous thread)
"> When the engine does start there is a noticeable gas smell - would a
> bad regulator show these symptoms?
Yes, if the internal diaphragm has broken it could be leaking and that
leak will run back into the intake. Easy enough to tell by simply
removing the vac line while the engine is running, and checking for gas.
So can leaky O-rings in the fuel rail quick connectors or leaking
injectors and their pressure side O-rings. Easiest way to check is to
wipe the rail and injectors down, run the engine, then go back with some
kleenex and see if you can pick up any fuel. Injectors can leak around
the electrical connection. If they are then they have to be replaced.
It is not necissary to replace them as a set, you can replace just one."
Replacing the fuel pressure regulator corrected my start up blues..... good
luck
"nrs" <neale_rs@yahoo.com> wrote in message
news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
>
> My 95 YJ takes more cranking to start than what seems normal. In a
> previous thread it was suggested to turn the key without cranking for a
> few seconds to allow the fuel pump to pressurize the system before
> cranking. When I try this I don't hear the pump working and no relay
> sounds. Is it possible that the pump is wired wrong and only works
> when cranking and when the engine is actually running?
>
> Thanks
>
09-06-2006, 10:00 AM
#5
Guest
Posts: n/a
Re: YJ fuel pump
Thanks for the reply. This gives me a good stating to point to start
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
09-06-2006, 10:00 AM
#6
Guest
Posts: n/a
Re: YJ fuel pump
Thanks for the reply. This gives me a good stating to point to start
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
09-06-2006, 10:00 AM
#7
Guest
Posts: n/a
Re: YJ fuel pump
Thanks for the reply. This gives me a good stating to point to start
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
looking.
paul wrote:
> Not sure about the pump wiring but if you are getting a gassy smell after
> starting check this (from previous thread)
>
> "> When the engine does start there is a noticeable gas smell - would a
> > bad regulator show these symptoms?
>
> Yes, if the internal diaphragm has broken it could be leaking and that
> leak will run back into the intake. Easy enough to tell by simply
> removing the vac line while the engine is running, and checking for gas.
>
> So can leaky O-rings in the fuel rail quick connectors or leaking
> injectors and their pressure side O-rings. Easiest way to check is to
> wipe the rail and injectors down, run the engine, then go back with some
> kleenex and see if you can pick up any fuel. Injectors can leak around
> the electrical connection. If they are then they have to be replaced.
> It is not necissary to replace them as a set, you can replace just one."
>
> Replacing the fuel pressure regulator corrected my start up blues..... good
> luck
>
> "nrs" <neale_rs@yahoo.com> wrote in message
> news:1157403136.906983.107910@74g2000cwt.googlegro ups.com...
> >
> > My 95 YJ takes more cranking to start than what seems normal. In a
> > previous thread it was suggested to turn the key without cranking for a
> > few seconds to allow the fuel pump to pressurize the system before
> > cranking. When I try this I don't hear the pump working and no relay
> > sounds. Is it possible that the pump is wired wrong and only works
> > when cranking and when the engine is actually running?
> >
> > Thanks
> >
Thread
Thread Starter
Forum
Replies
Last Post
diesel fuel injection
Jeep Mailing List
0
09-18-2006 06:12 AM
zarro
Jeep Mailing List
15
03-11-2005 03:15 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)