Gas Cap affect Fuel Pressure?
10-17-2003, 04:52 PM
#11
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
On Fri, 17 Oct 2003 20:00:02 GMT, the following appeared in
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
10-17-2003, 04:52 PM
#12
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
On Fri, 17 Oct 2003 20:00:02 GMT, the following appeared in
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
10-17-2003, 04:52 PM
#13
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
On Fri, 17 Oct 2003 20:00:02 GMT, the following appeared in
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
rec.autos.makers.jeep+******, posted by "Cherokee-LTD"
<spammenot@home.com>:
....but only the pressure in the tank.
>Absolutely.
>
>"William Oliveri" <wuji@bigvalley.net> wrote in message
>news:bmphg4$q2q18$1@ID-193866.news.uni-berlin.de...
>: Does the gas cap on a vehicle (jeep) have anything to do with Fuel
>Pressure?
>:
>:
>: Thanks,
>:
>: Bill
>:
>:
>
--
Bob C.
Reply to Bob-Casanova @ worldnet.att.net
(without the spaces, of course)
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov
10-17-2003, 04:54 PM
#14
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
I'm also going to check the timing chain this weekend for slack.
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
10-17-2003, 04:54 PM
#15
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
I'm also going to check the timing chain this weekend for slack.
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
10-17-2003, 04:54 PM
#16
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
I'm also going to check the timing chain this weekend for slack.
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
I'm going to eliminate as many things as I can before I take my jeep to JRU
next weekend.
bill
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bmpkla$phueq$1@ID-193866.news.uni-berlin.de...
> Not yet. What I did do is did a pressure test while driving which I
didn't
> do before. I was at 30 pounds at idle but when I drove it the results
were
> way below HESCO's recommended pressure at drive time. HESCO recommends
> around 40 to 41 pounds on acceleration which should remain and not drop
off.
> I could hardly get 35 pounds going uphill stomping on it. So, HESCO
> recommends dropping the tank and checking the fuel sock thinking there's a
> restriction keeping the fuel from flowing freely. They also recommend
> replacing the fuel filter even though it's new it could have filled up
with
> crap from the sock.
>
> Someone at work mentioned the fuel cap but I asked the owner of a parts
> store who said no and you seem to agree, the cap wouldn't make a
difference.
>
> So I plan to drop the tank this weekend and see if I can get that fuel
> pressure up.
>
> Bill
>
>
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:3F904B6E.13B92D80@***.net...
> > Hi Bill,
> > I believe your tank would totally collapse before it would make any
> > difference in pressure. The old mechanical diaphragm pump would be a
> > different story. Have you tried to increase your regulator pressure,
> > yet?
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > William Oliveri wrote:
> > >
> > > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
> Pressure?
> > >
> > > Thanks,
> > >
> > > Bill
>
>
10-17-2003, 05:04 PM
#17
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F904B6E.13B92D80@***.net...
> Hi Bill,
> I believe your tank would totally collapse before it would make any
> difference in pressure. The old mechanical diaphragm pump would be a
> different story. Have you tried to increase your regulator pressure,
> yet?
That's not entorely true Bill. The electric fuel pump is sensitive to a
plugged vent in the gas cap. The test would be to open the cap and see if
the pump works better.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
Pressure?
> >
> > Thanks,
> >
> > Bill
10-17-2003, 05:04 PM
#18
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F904B6E.13B92D80@***.net...
> Hi Bill,
> I believe your tank would totally collapse before it would make any
> difference in pressure. The old mechanical diaphragm pump would be a
> different story. Have you tried to increase your regulator pressure,
> yet?
That's not entorely true Bill. The electric fuel pump is sensitive to a
plugged vent in the gas cap. The test would be to open the cap and see if
the pump works better.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
Pressure?
> >
> > Thanks,
> >
> > Bill
10-17-2003, 05:04 PM
#19
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F904B6E.13B92D80@***.net...
> Hi Bill,
> I believe your tank would totally collapse before it would make any
> difference in pressure. The old mechanical diaphragm pump would be a
> different story. Have you tried to increase your regulator pressure,
> yet?
That's not entorely true Bill. The electric fuel pump is sensitive to a
plugged vent in the gas cap. The test would be to open the cap and see if
the pump works better.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Does the gas cap on a vehicle (jeep) have anything to do with Fuel
Pressure?
> >
> > Thanks,
> >
> > Bill
10-17-2003, 05:27 PM
#20
Guest
Posts: n/a
Re: Gas Cap affect Fuel Pressure?
Not on a CJ7 unless your charcoal canister is crapped out.
There is an air filter on the bottom of the canister that can get dirty
which will put a vacuum on the gas tank.
A CJ tank is supposed to be at atmospheric pressure.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> Does the gas cap on a vehicle (jeep) have anything to do with Fuel Pressure?
>
> Thanks,
>
> Bill
There is an air filter on the bottom of the canister that can get dirty
which will put a vacuum on the gas tank.
A CJ tank is supposed to be at atmospheric pressure.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
William Oliveri wrote:
>
> Does the gas cap on a vehicle (jeep) have anything to do with Fuel Pressure?
>
> Thanks,
>
> Bill