Audi 100 5cyl cold start problem
#41
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
I will also note that on the drive home it was absolutely wonderful. I
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
#42
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
I will also note that on the drive home it was absolutely wonderful. I
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
#43
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
I will also note that on the drive home it was absolutely wonderful. I
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks
#44
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
"sealdogfish" <sealdogfish@gmail.com> writes:
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
#45
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
"sealdogfish" <sealdogfish@gmail.com> writes:
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
#46
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
"sealdogfish" <sealdogfish@gmail.com> writes:
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start.
If you are able to start and have the car "run" on ether, there is nothing
wrong with the ignition system, but the car isn't getting any fuel.
How long is it since the fuel-filter have been changed? It might be
clogged so badly that the pump cannot get enough pressure. On my car the
fuel pressure should be around 4 bar.
Sounds like the fuelpump have gone bye bye. Usually you will be able to
hear it going, but it isn't delivering enough pressure. Had the exact
same problem on my car. A '93 Audi 100 2.3E.
I first tested the assuption with taking out the pump and cleaned it in
a bucket of water while applying power to it. I then washed the pump
with brake cleaning fluid in the same manner. I let it dry and
reinstalled.
The car would then start, but the pump sounded like a hive of bees so I
changed it for a new one. It cost me around US $300. Also: Change the
fuel-filter if you change the fuel-pump. If not you'll have the same
trouble in very short time.
--
azoth@dod.no
------------------------------------------------------------------------
Wenn im Zweifel, Volleistung! DoD#2101
'93 Audi 100 2.3E When in doubt, floor it!
#47
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
if you were daft enough to run the fuel pump in a no lubricating medium such
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
#48
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
if you were daft enough to run the fuel pump in a no lubricating medium such
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
#49
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
if you were daft enough to run the fuel pump in a no lubricating medium such
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!
"BBO" <azoth@dod.no> wrote in message news:m3zml8iron.fsf@dod.no...
> "sealdogfish" <sealdogfish@gmail.com> writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
> azoth@dod.no
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!
#50
Guest
Posts: n/a
Re: Audi 100 5cyl cold start problem
It still could be expensive 1991 ? but still only 80K Miles is nothing
sounds like blockages, but I would also suggest you clean out the pipes that
run the air / rocker cover / vacuum and especially the venturis (do it with
solvent not poke things in there. If the Idle stabilisation circuit has
blown itself and there could be melted wires back to it if any have been
subjected to heat at any time and contacted earth there will be. The
original circuits were built of discreet components and probably will be
okay but the wires might have let go. There are extra wires on most of these
cars for cruise control and turbo connections that flap about you may need
to run new wires and this might help. Also check that the temperature sender
units are working and the connections are good and clean. There is one on a
2226cc unit that sits under the thermostat that I have found troublesome
that may be the one that activates the cold start injector (corrosion may be
the only reason)
They do give up and you must buy the correct ones to replace them and they
change massively on models over the range so get the chassis number to a
dealer to make sure you have the correct ones.
Paul
Thanks for the extra feed back. It sounds like you're going through the
exact same things I have been through with mine.
"sealdogfish" <sealdogfish@gmail.com> wrote in message
news:1138918029.742880.23560@g43g2000cwa.googlegro ups.com...
> Well I have temporarily resolved the problem, I was just buying this
> car last night so I wanted to make sure the problem wasnt too terrible
> before i bought it. It turns out the cold start injector was not
> getting any power and to make matters worse i mustve knocked the
> distributor feedback plug out but i found that early enough. So i
> shorted the injector straight to the battery when cranking and for a
> short while afterwards and it worked flawlessly (although a slightly
> rich mixture for a few seconds) So now my only problem is to find out
> why there is no voltage to the cold start. The temperature guage is
> also not working which i will have to sort out.
> Anyone got any ideas on why it would stall when stopped and in gear
> with the brake on? only did this twice in a 40 minute drive.
>
sounds like blockages, but I would also suggest you clean out the pipes that
run the air / rocker cover / vacuum and especially the venturis (do it with
solvent not poke things in there. If the Idle stabilisation circuit has
blown itself and there could be melted wires back to it if any have been
subjected to heat at any time and contacted earth there will be. The
original circuits were built of discreet components and probably will be
okay but the wires might have let go. There are extra wires on most of these
cars for cruise control and turbo connections that flap about you may need
to run new wires and this might help. Also check that the temperature sender
units are working and the connections are good and clean. There is one on a
2226cc unit that sits under the thermostat that I have found troublesome
that may be the one that activates the cold start injector (corrosion may be
the only reason)
They do give up and you must buy the correct ones to replace them and they
change massively on models over the range so get the chassis number to a
dealer to make sure you have the correct ones.
Paul
Thanks for the extra feed back. It sounds like you're going through the
exact same things I have been through with mine.
"sealdogfish" <sealdogfish@gmail.com> wrote in message
news:1138918029.742880.23560@g43g2000cwa.googlegro ups.com...
> Well I have temporarily resolved the problem, I was just buying this
> car last night so I wanted to make sure the problem wasnt too terrible
> before i bought it. It turns out the cold start injector was not
> getting any power and to make matters worse i mustve knocked the
> distributor feedback plug out but i found that early enough. So i
> shorted the injector straight to the battery when cranking and for a
> short while afterwards and it worked flawlessly (although a slightly
> rich mixture for a few seconds) So now my only problem is to find out
> why there is no voltage to the cold start. The temperature guage is
> also not working which i will have to sort out.
> Anyone got any ideas on why it would stall when stopped and in gear
> with the brake on? only did this twice in a 40 minute drive.
>