Home » Public Forums » GMCnet » Vapor lock? (Like she is out of gas)
| Vapor lock? [message #218524] |
Thu, 15 August 2013 23:06  |
BRDRVR
Messages: 184
Registered: July 2013
Location: Clearwater, FL-Gerlach,NV
Karma: 8
|
Senior Member |
|
|
Got an issue with miss Sierra. She acts like shes running out of gas when she warms up. Bout 180-190. Like she's running out of fuel. Changed mech fuel pump - no help. Added inline elec pump-no help. Swapped carbs from another unit- helped for about 10 miles then back to same gimmick. Is this a vapor lock issue? When it stalls I can put my ear near the carb and it sounds like it bubbling or boiling. She is running hot , gets up to about 200. But so does my f150 out here in the desert. Any ideas? Thanx. David
David Gourdine
http//www.blackrockdesertrvrental.com
booking@blackrockdesertrvrental.com
727-657-1955
|
|
|
|
| Re: Vapor lock? [message #218529 is a reply to message #218524] |
Thu, 15 August 2013 23:53  |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
|
Senior Member |
|
|
You'll find a lot of info on this subject by searching previous posts. I went through a series of actions which didn't help. They included insulated fuel line between the fuel pump and carb, shielding panels between the exhaust pipe and fuel tanks. Electric fuel pump mounted near the tank, tanks painted white, etc. Finally, I dropped the tanks and installed in-tank fuel pumps. That made the difference. I still had some vapor lock under really steep climbs, but was still moving at a reasonable clip. This year I installed the Patterson block off plates in the intake manifold (Jim K has them). I'm anxious to see their impact. My Onan still has problems and I'm working on a scheme to link it into the output from the in-tank fuel pumps.
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
|
|
|
|
| Re: Vapor lock? [message #218530 is a reply to message #218524] |
Fri, 16 August 2013 00:02 |
BRDRVR
Messages: 184
Registered: July 2013
Location: Clearwater, FL-Gerlach,NV
Karma: 8
|
Senior Member |
|
|
Of the 8 she is the only one to give me this issue.got an order coming from applied tomorrow will see if they can add that
David Gourdine
http//www.blackrockdesertrvrental.com
booking@blackrockdesertrvrental.com
727-657-1955
|
|
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218542 is a reply to message #218529] |
Fri, 16 August 2013 05:59 |
Jim Bounds
Messages: 842
Registered: January 2004
Karma: 0
|
Senior Member |
|
|
would agree there has been a great deal written on this subject and I too have tried many things. The carb to pump insulated hose has worked in some applications though I feel it's most important value is in replacing those highly twisted and fractured original steel fuel hoses and to make it easier to check and replace the carb fuel filter in the snout of the Q jet. I've tried painting the bottom of the tanks with "Lizard Skin" which showed promise but it didn't seem to do the trick as you found out.
I did find however adding a second fuel pump, an electric one to the aux. fuel tank (front one) and switch the power to it from the A/B fuel selector did seem to work well. I use it whenever I am in traffic or slow on the highway for a toll booth or exit ramp. I feel that is conditions are right and a vapor lock does occur that if you can change the conditions that set up the vapor lock issue you can break it's hold on your fuel. Pressurizing the fuel line from near the tank where the pump is installed all the way to the mechanical fuel pump, giving that mechanical pump ample fuel to grab effectively takes care of the problem.
Electric pumps are "pusher" pumps so putting it into the tanks the pump uses the fuel as a cooler and actually being submerged in the fuel, a pusher pump has it's best chance to do it's job. Unfortunately, relays and motors being the highest fail rate devices in electronics and when the in tank pump fails the only way to access it, unless you have bored holes in the floor of your coach, is to drop the fuel tank-- I just don;t want to put my customers in that harms way. I feel an in tank fuel pump can be fine if you are an enthusiast and understand the complexity of changing the pump when it fails but exposing a non enthusiast who really does not look forward to doing work on his coach, putting the pump in the tank may not be their best solution.
I feel having the countermeasure option of a second pusher pump seems to solve the issues for my customers. I have no doubt there will be contrasting views so lets hear them,
Jim Bounds
-----------------------------------
________________________________
From: Jack Christensen <captjack@sonic.net>
To: gmclist@temp.gmcnet.org
Sent: Friday, August 16, 2013 12:53 AM
Subject: Re: [GMCnet] Vapor lock?
You'll find a lot of info on this subject by searching previous posts. I went through a series of actions which didn't help. They included insulated fuel line between the fuel pump and carb, shielding panels between the exhaust pipe and fuel tanks. Electric fuel pump mounted near the tank, tanks painted white, etc. Finally, I dropped the tanks and installed in-tank fuel pumps. That made the difference. I still had some vapor lock under really steep climbs, but was still moving at a reasonable clip. This year I installed the Patterson block off plates in the intake manifold (Jim K has them). I'm anxious to see their impact. My Onan still has problems and I'm working on a scheme to link it into the output from the in-tank fuel pumps.
--
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
'65 Clark Cortez,
Sebastopol, CA
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
|
|
|
|
| Re: Vapor lock? [message #218631 is a reply to message #218524] |
Fri, 16 August 2013 14:36 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
|
Senior Member |
|
|
I'll add my anecdotal evidence, if only because I live in one of the hottest parts of the US (Mesa, AZ). My beloved PO installed a pusher pump back near the fuel switch, and it seems to be a 100% fix for any tendency for my coach to vapor lock.
In fact, I've only ever experienced vapor lock once - and that on a day when the ambient temperature was well over 105, meaning it was probably 120-140 on the road. I was doing some stop-and-go driving, and the rig just quit (no hesitation, no warning, just running, and then not running). I realized that I hadn't clicked on the auxiliary fuel pump (toggle switch near the steering column), or the vacuum assist pump. Since I was still making a left turn when this happened, I hit both switches, coasted into a convenient parking lot to the right, and then had no trouble at all re-firing my mighty 403, which never missed a beat after the aux. fuel pump was turned on.
FWIW, my 403 is fed by a Holley spread-bore carb, and I'm not sure if the manifold has been blocked off or not.
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218648 is a reply to message #218631] |
Fri, 16 August 2013 17:15 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
I still say that blocking off the intake is an band aid approach to a real
problem, which is your neglected mufflers.
When one side plugs up, the exhaust goes to the other by the way if the
Intake.
So what are you now doing with the plugged muffler?
Wait till it causes some damage, or buy more things from us to increase
power your choking back.
When you have put in over 80 engines, you will know after a test run by
looking at the color on the intake how bad the one muffler is verse the
other.
New light trucks have pump in the tank and do things in the engine
compartment to keep it as cool as possible.
On Fri, Aug 16, 2013 at 12:36 PM, Mark <mark@habcycles.com> wrote:
>
>
> I'll add my anecdotal evidence, if only because I live in one of the
> hottest parts of the US (Mesa, AZ). My beloved PO installed a pusher pump
> back near the fuel switch, and it seems to be a 100% fix for any tendency
> for my coach to vapor lock.
>
> In fact, I've only ever experienced vapor lock once - and that on a day
> when the ambient temperature was well over 105, meaning it was probably
> 120-140 on the road. I was doing some stop-and-go driving, and the rig
> just quit (no hesitation, no warning, just running, and then not running).
> I realized that I hadn't clicked on the auxiliary fuel pump (toggle switch
> near the steering column), or the vacuum assist pump. Since I was still
> making a left turn when this happened, I hit both switches, coasted into a
> convenient parking lot to the right, and then had no trouble at all
> re-firing my mighty 403, which never missed a beat after the aux. fuel pump
> was turned on.
>
> FWIW, my 403 is fed by a Holley spread-bore carb, and I'm not sure if the
> manifold has been blocked off or not.
> --
> Mark Hickey
> Mesa, AZ
> 1978 Royale Center Kitchen
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218651 is a reply to message #218630] |
Fri, 16 August 2013 17:36 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
|
Senior Member |
|
|
In tank fuel pump failures are not uncommon on late 90's gm vans and SUVs. Chevy astro/Tahoe/suburbans. We have replaced several. I would not call it an epidemic but it is not an uncommon failure.
Todd Sullivan
Sully
77 royale
Seattle
On Aug 16, 2013, at 12:24 PM, Emery Stora <emerystora@me.com> wrote:
>>
>>
>> I feel having the countermeasure option of a second pusher pump seems to solve the issues for my customers. I have no doubt there will be contrasting views so lets hear them,
>> Jim Bounds
>
> OK. You wanted a contrasting view so here goes.
>
> I have no doubts that a extra pusher pump works and I also used one in the past however you must bear in mind that you live close to sea level as do many of your customers.
>
> It is a different story as one goes up in elevation. At 3000 or more (I was 7200 in Santa Fe and 5000 for me now) gasoline boils at a lower temperature.
>
> I tried many things including an extra pusher pump. As more fuel was formulated with alcohol it was impossible to stop vapor lock problems until I finally put in the in tank pumps.
>
> As to worrying about their failing I believe all modern cars now have in tank fuel pumps. My 1993 Jeep Grand Cherokee and my 1996 Geo Tracker also has one. I have put close to 200,000 miles on each of those vehicles. They are still pumping fuel.
>
> I don't know of anyone that has had a fuel pump failure with their cars. The ones I put in my tank AC/Delco and Airtek have been used for years by GM, Ford and others as factory install.
>
> In the case of putting them in the GMC fuel tanks one must remember that there are two pumps in two tanks. If one were to fail there is still another one to provide fuel. It also would be very easy to hook up an external pump as fuel can be pulled through the in tank pumps.
>
> There are now many GMCers besides me and Bill Bramlett that have put in these pumps for a few years now. I don't recall reading any messages on the net discussing failures other than you being concerned that they will fail so you will not install them. Is that based on fact or speculation?
>
> Emery Stora
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218663 is a reply to message #218651] |
Fri, 16 August 2013 19:39 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
|
Senior Member |
|
|
yup- my 93 s-10 pump went bad
gene
On Fri, Aug 16, 2013 at 3:36 PM, Todd Sullivan <sgltrac@gmail.com> wrote:
> In tank fuel pump failures are not uncommon on late 90's gm vans and SUVs.
> Chevy astro/Tahoe/suburbans. We have replaced several. I would not call it
> an epidemic but it is not an uncommon failure.
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
> On Aug 16, 2013, at 12:24 PM, Emery Stora <emerystora@me.com> wrote:
>
> >>
> >>
> >> I feel having the countermeasure option of a second pusher pump seems
> to solve the issues for my customers. I have no doubt there will be
> contrasting views so lets hear them,
> >> Jim Bounds
> >
> > OK. You wanted a contrasting view so here goes.
> >
> > I have no doubts that a extra pusher pump works and I also used one in
> the past however you must bear in mind that you live close to sea level as
> do many of your customers.
> >
> > It is a different story as one goes up in elevation. At 3000 or more (I
> was 7200 in Santa Fe and 5000 for me now) gasoline boils at a lower
> temperature.
> >
> > I tried many things including an extra pusher pump. As more fuel was
> formulated with alcohol it was impossible to stop vapor lock problems until
> I finally put in the in tank pumps.
> >
> > As to worrying about their failing I believe all modern cars now have in
> tank fuel pumps. My 1993 Jeep Grand Cherokee and my 1996 Geo Tracker also
> has one. I have put close to 200,000 miles on each of those vehicles. They
> are still pumping fuel.
> >
> > I don't know of anyone that has had a fuel pump failure with their cars.
> The ones I put in my tank AC/Delco and Airtek have been used for years by
> GM, Ford and others as factory install.
> >
> > In the case of putting them in the GMC fuel tanks one must remember that
> there are two pumps in two tanks. If one were to fail there is still
> another one to provide fuel. It also would be very easy to hook up an
> external pump as fuel can be pulled through the in tank pumps.
> >
> > There are now many GMCers besides me and Bill Bramlett that have put in
> these pumps for a few years now. I don't recall reading any messages on the
> net discussing failures other than you being concerned that they will fail
> so you will not install them. Is that based on fact or speculation?
> >
> > Emery Stora
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Vapor lock? [message #218669 is a reply to message #218524] |
Fri, 16 August 2013 20:36 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
|
Senior Member |
|
|
| BRDRVR wrote on Thu, 15 August 2013 21:06 |
Got an issue with miss Sierra. She acts like shes running out of gas when she warms up. Bout 180-190. Like she's running out of fuel. Changed mech fuel pump - no help. Added inline elec pump-no help. Swapped carbs from another unit- helped for about 10 miles then back to same gimmick. Is this a vapor lock issue?
|
I would not discount the distributor module. On the Fuel Injection forum this spring we have had three or four sure they were running out of fuel. After looking at fuel tables and computer logs, each one turned out to be a bum module. Modules also get hot and sometimes they develop a crack or separation that breaks down when they get expand.
The symptom is similar... especially cutting out or missing when you give it some gas. When the throttle is open there is more air in the cylinder... more compression and the density makes it harder for the spark to jump. So it is possible to see spark on a plug out in the air.
I have also had coils that break down when they get warm.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
|
|
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218681 is a reply to message #218651] |
Fri, 16 August 2013 21:30 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
| sgltrac wrote on Fri, 16 August 2013 17:36 |
In tank fuel pump failures are not uncommon on late 90's gm vans and SUVs. Chevy astro/Tahoe/suburbans. We have replaced several. I would not call it an epidemic but it is not an uncommon failure.
Todd Sullivan
Sully
77 royale
Seattle
On Aug 16, 2013, at 12:24 PM, Emery Stora <emerystora@me.com> wrote:
|
I and my daughter have replaced 7 in tank fuel pumps in 4 Chevy Blazers. A 1994, 1996, 1998, and 1999. I carry a spare fuel pump in both my 1998 Blazer and Laurie's 1999 Jimmy. My daughter Heather can drop the tanks and replace one in about 3 hours now.
We have used genuine Delco pumps and aftermarket ones. They all seem to have the same failure rates. I have a friend with a 1999 an he has used 2 pumps. I know of one 1999 one that has put one in it. I also have replaced one Ranger in tank pump.
I believe they get hot when the fuel tanks are run low. My friend that works at a Chevy dealership has replaced too many to count He actually lifts the body, or bed if it is a pickup, to replace the pump rather than drop the tank. These are the pumps that run in the 60PSI range.
So my point is that on some GM vehicles those in tank pumps have a higher than expected failure rate.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218745 is a reply to message #218681] |
Sat, 17 August 2013 10:14 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
I'm glad you have had such good luck with in tank fuel pumps, Emery. I have not been as fortunate. I just had to replace the fourth one on my 200,000 mile Cherokee and had replaced three on an '85 Buick Century wagon several years back. On the other hand, my Dodge 1-ton is still on the original pump with 99,000 miles on it and our '03 Tracker is on the original (AFAIK) with 115,000 miles on it. By the way, I never run any of them below about 1/4 tank of gas.
I think your in tank fuel pump idea is a good one and the redundancy of having a pump in each tank is pretty good insurance that you won't be by the side of the road due to a fuel pump failure. I might go that route myself one day. But don't kid yourself into thinking you will never have a fuel pump problem again.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
|
|
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218752 is a reply to message #218681] |
Sat, 17 August 2013 11:15 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
I used to have some tech info about in tank pumps on GM vehicles. The
pattern seemed to be that when you constantly run them with a small amount
of fuel in the tanks, the life of the pump was drastically reduced. The
approved fix was customer reeducation. Service dept. personnel were
instructed to advise customers to keep their fuel tanks at least 1/2 full
when possible. The in tank pumps are cooled by the fuel around them as well
as the fuel that goes through them. Fuel that goes through them lubricates
them as well. If you constantly run them near empty, learn to be proficient
at changing pumps out.
Jim Hupy
Salem, Or
78 Gmc Royale 403
On Aug 16, 2013 7:30 PM, "Ken Burton" <n9cv@comcast.net> wrote:
>
>
> sgltrac wrote on Fri, 16 August 2013 17:36
> > In tank fuel pump failures are not uncommon on late 90's gm vans and
> SUVs. Chevy astro/Tahoe/suburbans. We have replaced several. I would not
> call it an epidemic but it is not an uncommon failure.
> >
> > Todd Sullivan
> >
> > Sully
> > 77 royale
> > Seattle
> > On Aug 16, 2013, at 12:24 PM, Emery Stora <emerystora@me.com> wrote:
>
> I and my daughter have replaced 7 in tank fuel pumps in 4 Chevy Blazers. A
> 1994, 1996, 1998, and 1999. I carry a spare fuel pump in both my 1998
> Blazer and Laurie's 1999 Jimmy. My daughter Heather can drop the tanks and
> replace one in about 3 hours now.
>
> We have used genuine Delco pumps and aftermarket ones. They all seem to
> have the same failure rates. I have a friend with a 1999 an he has used 2
> pumps. I know of one 1999 one that has put one in it. I also have
> replaced one Ranger in tank pump.
>
> I believe they get hot when the fuel tanks are run low. My friend that
> works at a Chevy dealership has replaced too many to count He actually
> lifts the body, or bed if it is a pickup, to replace the pump rather than
> drop the tank. These are the pumps that run in the 60PSI range.
>
> So my point is that on some GM vehicles those in tank pumps have a higher
> than expected failure rate.
>
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Vapor lock? [message #218754 is a reply to message #218524] |
Sat, 17 August 2013 11:37 |
George B.
Messages: 213
Registered: February 2012
Karma: 1
|
Senior Member |
|
|
Seems like anyone doing a serious remodel where the floor is exposed should consider installing a hatch or two to get at the top of the fuel tanks.
George Butts
Las Vegas Nevada
73 "Custom 26' Q" & 76 23' Birchaven
71 Honda 600 Coupe & 01 Tracker Toads
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218755 is a reply to message #218745] |
Sat, 17 August 2013 12:11 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
|
Senior Member |
|
|
Original in-tank fuel pump on our 2002 Explorer died at around 155k miles and had to wait almost 2 hours for tow IN OKC. Almost 1 kilo buck at dealer ship to repair.
Mac from OKC
Sent from my iPhone
On Aug 17, 2013, at 11:15, "Carl Stouffer" <carljr3b@yahoo.com> wrote:
I'm glad you have had such good luck with in tank fuel pumps, Emery. I have not been as fortunate. I just had to replace the fourth one on my 200,000 mile Cherokee and had replaced three on an '85 Buick Century wagon several years back. On the other hand, my Dodge 1-ton is still on the original pump with 99,000 miles on it and our '03 Tracker is on the original (AFAIK) with 115,000 miles on it. By the way, I never run any of them below about 1/4 tank of gas.
I think your in tank fuel pump idea is a good one and the redundancy of having a pump in each tank is pretty good insurance that you won't be by the side of the road due to a fuel pump failure. I might go that route myself one day. But don't kid yourself into thinking you will never have a fuel pump problem again.
--
Carl S.
'75 ex Palm Beach
Tucson, AZ.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] Vapor lock? [message #218757 is a reply to message #218755] |
Sat, 17 August 2013 12:46 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
This whole discussion on pump location and flexible vs rigid fuel lines,
mechanical vs electric pumps, carb vs fuel injection, etc. has a root cause
in the formulation of the fuel that we have no choice but to use in our 40
year old dinosaurs. If we still had pre 70's gasolines, our coaches would
not be having these kinds of problems. But, lament it if we must, reality
sets in, and we find ourselves in a place where we must adapt or suffer the
consequences. The facts are very plain. Today's fuels contain STUFF that
comes out of suspension with the rest of the liquids at a temperature that
is lower than the fuel tanks, lines, manifolds, pumps, and in some cases
the ambient air. You can call it aromatic if that is the term you choose,
but boiling would be more descriptive. The problem then becomes one of
keeping the entire system under high enough pressure or low enough
temperature to prevent this from happening at a high enough rate to prevent
our engines from running. Maybe we need to look at ways of keeping the fuel
cooler instead of higher pressures? Don't have all the answers, but I know
more of the questions to ask, now.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Sat, Aug 17, 2013 at 10:11 AM, D C _Mac_ Macdonald <k2gkk@hotmail.com>wrote:
> Original in-tank fuel pump on our 2002 Explorer died at around 155k miles
> and had to wait almost 2 hours for tow IN OKC. Almost 1 kilo buck at
> dealer ship to repair.
>
> Mac from OKC
>
>
> Sent from my iPhone
> On Aug 17, 2013, at 11:15, "Carl Stouffer" <carljr3b@yahoo.com> wrote:
>
>
>
> I'm glad you have had such good luck with in tank fuel pumps, Emery. I
> have not been as fortunate. I just had to replace the fourth one on my
> 200,000 mile Cherokee and had replaced three on an '85 Buick Century wagon
> several years back. On the other hand, my Dodge 1-ton is still on the
> original pump with 99,000 miles on it and our '03 Tracker is on the
> original (AFAIK) with 115,000 miles on it. By the way, I never run any of
> them below about 1/4 tank of gas.
>
> I think your in tank fuel pump idea is a good one and the redundancy of
> having a pump in each tank is pretty good insurance that you won't be by
> the side of the road due to a fuel pump failure. I might go that route
> myself one day. But don't kid yourself into thinking you will never have a
> fuel pump problem again.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
Goto Forum:
Current Time: Sun Oct 06 09:21:32 CDT 2024
Total time taken to generate the page: 0.02309 seconds
|
GMCforum
Search
Help
Register
Login
Home
