"Pete" <escape2music@hotmail.com> wrote:
>
> "Alan Sung" wrote:
> >
> > Why would a fuel pump stop working if it sucked fumes or nothing at
> > all? Are they "lubricated" by the fuel running through them?
>
> The pump is cooled by the fuel in the tank.

On my '97 A8, the pump can ONLY be run "wet." That is one reason why
fixing/replacing the pump is expensive. You can't just take it out and test
it dry on a bench. If the pumps in other Audi's are similar to the one in
my A8, you'll find pump repair/replacement to be more like $700 -- even at
an indy shop. There are also various connectors and whatnot that will cause
a malfunction if not reassembled EXACTLY right.

Again, it is NOT worth the risk. Instead, wait until you have "5 miles" on
the display and fill the tank to the first "click off" on the gas pump.
Note the added gas. Run back down to "5 miles" and again refill to the same
level. Check those numbers against the tank capacity. You should also bear
in mind that the "miles remaining" will change based on recent fuel
consumption. Sometimes, that number will shift wildly if you go up a steep
hill (I'm guessing because the fuel sloshes between the two tank halves).

 

"Pete" <escape2music@hotmail.com> wrote:
>
> "Alan Sung" wrote:
> >
> > Why would a fuel pump stop working if it sucked fumes or nothing at
> > all? Are they "lubricated" by the fuel running through them?
>
> The pump is cooled by the fuel in the tank.

On my '97 A8, the pump can ONLY be run "wet." That is one reason why
fixing/replacing the pump is expensive. You can't just take it out and test
it dry on a bench. If the pumps in other Audi's are similar to the one in
my A8, you'll find pump repair/replacement to be more like $700 -- even at
an indy shop. There are also various connectors and whatnot that will cause
a malfunction if not reassembled EXACTLY right.

Again, it is NOT worth the risk. Instead, wait until you have "5 miles" on
the display and fill the tank to the first "click off" on the gas pump.
Note the added gas. Run back down to "5 miles" and again refill to the same
level. Check those numbers against the tank capacity. You should also bear
in mind that the "miles remaining" will change based on recent fuel
consumption. Sometimes, that number will shift wildly if you go up a steep
hill (I'm guessing because the fuel sloshes between the two tank halves).

 

"Pete" <escape2music@hotmail.com> wrote:
>
> "Alan Sung" wrote:
> >
> > Why would a fuel pump stop working if it sucked fumes or nothing at
> > all? Are they "lubricated" by the fuel running through them?
>
> The pump is cooled by the fuel in the tank.

On my '97 A8, the pump can ONLY be run "wet." That is one reason why
fixing/replacing the pump is expensive. You can't just take it out and test
it dry on a bench. If the pumps in other Audi's are similar to the one in
my A8, you'll find pump repair/replacement to be more like $700 -- even at
an indy shop. There are also various connectors and whatnot that will cause
a malfunction if not reassembled EXACTLY right.

Again, it is NOT worth the risk. Instead, wait until you have "5 miles" on
the display and fill the tank to the first "click off" on the gas pump.
Note the added gas. Run back down to "5 miles" and again refill to the same
level. Check those numbers against the tank capacity. You should also bear
in mind that the "miles remaining" will change based on recent fuel
consumption. Sometimes, that number will shift wildly if you go up a steep
hill (I'm guessing because the fuel sloshes between the two tank halves).

 

"[ a m z ]" <amz.REMOVETHIS@eskimo.REMOVETHIS.com> wrote in message
news:ao_pg.22$FO1.4325@news.uswest.net...
> "Pete" <escape2music@hotmail.com> wrote:
>>
>> "Alan Sung" wrote:
>> >
>> > Why would a fuel pump stop working if it sucked fumes or nothing at
>> > all? Are they "lubricated" by the fuel running through them?
>>
>> The pump is cooled by the fuel in the tank.
>
> On my '97 A8, the pump can ONLY be run "wet." That is one reason why
> fixing/replacing the pump is expensive. You can't just take it out and
> test
> it dry on a bench. If the pumps in other Audi's are similar to the one in
> my A8, you'll find pump repair/replacement to be more like $700 -- even at
> an indy shop. There are also various connectors and whatnot that will
> cause
> a malfunction if not reassembled EXACTLY right.
>
> Again, it is NOT worth the risk. Instead, wait until you have "5 miles"
> on
> the display and fill the tank to the first "click off" on the gas pump.
> Note the added gas. Run back down to "5 miles" and again refill to the
> same
> level. Check those numbers against the tank capacity. You should also
> bear
> in mind that the "miles remaining" will change based on recent fuel
> consumption. Sometimes, that number will shift wildly if you go up a
> steep
> hill (I'm guessing because the fuel sloshes between the two tank halves).
>
>

Pumps on A4's go for a past-time, it's a very common fault, and a new one
fitted from Audi is £230 / $400 so I doubt it is the same pump, although you
do drive an A8 so they prob jack the prices up.

I know you can run your car down to 5 miles showing on the DIS and refill,
but the point being how much fuel is left in the tank when your car shows 5
miles can vary and I would like to know perhaps how much fuel you can fit in
when it is down to 5 miles on DIS??

I think the gauge on the A4 need recalibrating maybe? as 2 gallons (10
litres) of reserve fuel is far too much.

 

"[ a m z ]" <amz.REMOVETHIS@eskimo.REMOVETHIS.com> wrote in message
news:ao_pg.22$FO1.4325@news.uswest.net...
> "Pete" <escape2music@hotmail.com> wrote:
>>
>> "Alan Sung" wrote:
>> >
>> > Why would a fuel pump stop working if it sucked fumes or nothing at
>> > all? Are they "lubricated" by the fuel running through them?
>>
>> The pump is cooled by the fuel in the tank.
>
> On my '97 A8, the pump can ONLY be run "wet." That is one reason why
> fixing/replacing the pump is expensive. You can't just take it out and
> test
> it dry on a bench. If the pumps in other Audi's are similar to the one in
> my A8, you'll find pump repair/replacement to be more like $700 -- even at
> an indy shop. There are also various connectors and whatnot that will
> cause
> a malfunction if not reassembled EXACTLY right.
>
> Again, it is NOT worth the risk. Instead, wait until you have "5 miles"
> on
> the display and fill the tank to the first "click off" on the gas pump.
> Note the added gas. Run back down to "5 miles" and again refill to the
> same
> level. Check those numbers against the tank capacity. You should also
> bear
> in mind that the "miles remaining" will change based on recent fuel
> consumption. Sometimes, that number will shift wildly if you go up a
> steep
> hill (I'm guessing because the fuel sloshes between the two tank halves).
>
>

Pumps on A4's go for a past-time, it's a very common fault, and a new one
fitted from Audi is £230 / $400 so I doubt it is the same pump, although you
do drive an A8 so they prob jack the prices up.

I know you can run your car down to 5 miles showing on the DIS and refill,
but the point being how much fuel is left in the tank when your car shows 5
miles can vary and I would like to know perhaps how much fuel you can fit in
when it is down to 5 miles on DIS??

I think the gauge on the A4 need recalibrating maybe? as 2 gallons (10
litres) of reserve fuel is far too much.

 

"[ a m z ]" <amz.REMOVETHIS@eskimo.REMOVETHIS.com> wrote in message
news:ao_pg.22$FO1.4325@news.uswest.net...
> "Pete" <escape2music@hotmail.com> wrote:
>>
>> "Alan Sung" wrote:
>> >
>> > Why would a fuel pump stop working if it sucked fumes or nothing at
>> > all? Are they "lubricated" by the fuel running through them?
>>
>> The pump is cooled by the fuel in the tank.
>
> On my '97 A8, the pump can ONLY be run "wet." That is one reason why
> fixing/replacing the pump is expensive. You can't just take it out and
> test
> it dry on a bench. If the pumps in other Audi's are similar to the one in
> my A8, you'll find pump repair/replacement to be more like $700 -- even at
> an indy shop. There are also various connectors and whatnot that will
> cause
> a malfunction if not reassembled EXACTLY right.
>
> Again, it is NOT worth the risk. Instead, wait until you have "5 miles"
> on
> the display and fill the tank to the first "click off" on the gas pump.
> Note the added gas. Run back down to "5 miles" and again refill to the
> same
> level. Check those numbers against the tank capacity. You should also
> bear
> in mind that the "miles remaining" will change based on recent fuel
> consumption. Sometimes, that number will shift wildly if you go up a
> steep
> hill (I'm guessing because the fuel sloshes between the two tank halves).
>
>

Pumps on A4's go for a past-time, it's a very common fault, and a new one
fitted from Audi is £230 / $400 so I doubt it is the same pump, although you
do drive an A8 so they prob jack the prices up.

I know you can run your car down to 5 miles showing on the DIS and refill,
but the point being how much fuel is left in the tank when your car shows 5
miles can vary and I would like to know perhaps how much fuel you can fit in
when it is down to 5 miles on DIS??

I think the gauge on the A4 need recalibrating maybe? as 2 gallons (10
litres) of reserve fuel is far too much.

 

"[ a m z ]" <amz.REMOVETHIS@eskimo.REMOVETHIS.com> wrote in message
news:ao_pg.22$FO1.4325@news.uswest.net...
> "Pete" <escape2music@hotmail.com> wrote:
>>
>> "Alan Sung" wrote:
>> >
>> > Why would a fuel pump stop working if it sucked fumes or nothing at
>> > all? Are they "lubricated" by the fuel running through them?
>>
>> The pump is cooled by the fuel in the tank.
>
> On my '97 A8, the pump can ONLY be run "wet." That is one reason why
> fixing/replacing the pump is expensive. You can't just take it out and
> test
> it dry on a bench. If the pumps in other Audi's are similar to the one in
> my A8, you'll find pump repair/replacement to be more like $700 -- even at
> an indy shop. There are also various connectors and whatnot that will
> cause
> a malfunction if not reassembled EXACTLY right.
>
> Again, it is NOT worth the risk. Instead, wait until you have "5 miles"
> on
> the display and fill the tank to the first "click off" on the gas pump.
> Note the added gas. Run back down to "5 miles" and again refill to the
> same
> level. Check those numbers against the tank capacity. You should also
> bear
> in mind that the "miles remaining" will change based on recent fuel
> consumption. Sometimes, that number will shift wildly if you go up a
> steep
> hill (I'm guessing because the fuel sloshes between the two tank halves).
>
>

Pumps on A4's go for a past-time, it's a very common fault, and a new one
fitted from Audi is £230 / $400 so I doubt it is the same pump, although you
do drive an A8 so they prob jack the prices up.

I know you can run your car down to 5 miles showing on the DIS and refill,
but the point being how much fuel is left in the tank when your car shows 5
miles can vary and I would like to know perhaps how much fuel you can fit in
when it is down to 5 miles on DIS??

I think the gauge on the A4 need recalibrating maybe? as 2 gallons (10
litres) of reserve fuel is far too much.