| Author |
Message |
Hugh Gundersen
Guest
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 Posted:
Sun Dec 12, 2004 1:21 am Post subject:
HELP! E38 740i engine died at traffic lights and won't sta |
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Hi folks
Anyone come up against this?
Pulled up at t-lights - engine spluttered and stopped. Would not
start again? Seemed like it wanted to when cranked but not sustain
ignition.
found 40 amp fuse under hood blown so replaced it - still no go?
any ideas?
Sir Hugh of Bognor
Intelligence is not knowing the answer but knowing where and how to find it!
Hugh Gundersen
hsg@h-gee.co.uk
hsg@bognor-bill.co.uk
http://www.bognor-bill.co.uk
Bognor Regis, W.Sussex, England, UK
-------------------------------------------------
Vyisder Asmeni
Orsisarsis Asderisorsis.
B.Cozderiz
Vunarz
PERORZ
-------------------------------------------------
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Kyle and Lori Greene
Guest
|
| Posted:
Sun Dec 12, 2004 5:00 pm Post subject:
Re: HELP! E38 740i engine died at traffic lights and won't |
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"Hugh Gundersen" <hsg@h-gee.co.uk> wrote in message
news:1llmr0pe45q8vej349562q4c5101jn7nh6@4ax.com...
| Quote: | Hi folks
Anyone come up against this?
Pulled up at t-lights - engine spluttered and stopped. Would not
start again? Seemed like it wanted to when cranked but not sustain
ignition.
found 40 amp fuse under hood blown so replaced it - still no go?
any ideas?
Sir Hugh of Bognor
|
My 98 740iL did the same thing. The garage diagnosed it as a clogged fuel
filter and a dead fuel pump. However, these actually turned out to be
symptoms rather than the problem. Once they got the fuel pump working
again, the car ran good for a few minutes and then blew the main fuse.
Rather than trace back to see why it blew, they simply replaced it. It ran
again for a few minutes and then started to smoke from the ECU computer.
They couldn't figure out why, so they sent it to the BMW dealer in Tampa.
There they found that the sensor on the thermostat was grounding out only
once it got hot. That is why everything was testing out alright when cold.
Usually this type of failure burns up the wiring harness, but in my case it
didn't. It took out the ECU and EGS (transmission) computers.
You may be able to fix this yourself, but troubleshooting something
electrical of this nature can be difficult and if done wrong, very
expensive. I had to pay the first garage $1000 for the work they did and
the BMW dealer $3700 to find and fix the real problem.
Kyle. |
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Hugh Gundersen
Guest
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| Posted:
Tue Dec 14, 2004 1:28 am Post subject:
Re: Re: HELP! E38 740i engine died at traffic lights and w |
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On Sun, 12 Dec 2004 12:00:25 GMT, "Kyle and Lori Greene"
<kylogreene1@tampabay1.rr1.com> wrote:
| Quote: |
"Hugh Gundersen" <hsg@h-gee.co.uk> wrote in message
news:1llmr0pe45q8vej349562q4c5101jn7nh6@4ax.com...
Hi folks
Anyone come up against this?
Pulled up at t-lights - engine spluttered and stopped. Would not
start again? Seemed like it wanted to when cranked but not sustain
ignition.
found 40 amp fuse under hood blown so replaced it - still no go?
any ideas?
Sir Hugh of Bognor
My 98 740iL did the same thing. The garage diagnosed it as a clogged fuel
filter and a dead fuel pump. However, these actually turned out to be
symptoms rather than the problem. Once they got the fuel pump working
again, the car ran good for a few minutes and then blew the main fuse.
Rather than trace back to see why it blew, they simply replaced it. It ran
again for a few minutes and then started to smoke from the ECU computer.
They couldn't figure out why, so they sent it to the BMW dealer in Tampa.
There they found that the sensor on the thermostat was grounding out only
once it got hot. That is why everything was testing out alright when cold.
Usually this type of failure burns up the wiring harness, but in my case it
didn't. It took out the ECU and EGS (transmission) computers.
You may be able to fix this yourself, but troubleshooting something
electrical of this nature can be difficult and if done wrong, very
expensive. I had to pay the first garage $1000 for the work they did and
the BMW dealer $3700 to find and fix the real problem.
Kyle.
Well it appears to be a seized fuel pump - Kaput - as the Germans call |
it - can't moan after 8 years and 166K miles.
Let's hope that all it is...... Although the fault code readout says
something about "unable to read Auto box RAM" but works Ok although I
would like it re-programmed to shift into 5th in sport mode and shift
up on lift off the throttle on hard acceleration as is / was offered
by BMW when the car was new. Apparently the service is no longer
available as nobody has the update program to reprogram the gearbox.
Sir Hugh of Bognor
Intelligence is not knowing the answer but knowing where and how to find it!
Hugh Gundersen
hsg@h-gee.co.uk
hsg@bognor-bill.co.uk
http://www.bognor-bill.co.uk
Bognor Regis, W.Sussex, England, UK
-------------------------------------------------
Vyisder Asmeni
Orsisarsis Asderisorsis.
B.Cozderiz
Vunarz
PERORZ
-------------------------------------------------
|
|
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Kyle and Lori Greene
Guest
|
| Posted:
Tue Dec 14, 2004 1:28 am Post subject:
Re: Re: HELP! E38 740i engine died at traffic lights and w |
|
|
"Hugh Gundersen" <hsg@h-gee.co.uk> wrote in message
news:d30sr0p83aucujbifm5oh3sjrmtn071gb0@4ax.com...
| Quote: | On Sun, 12 Dec 2004 12:00:25 GMT, "Kyle and Lori Greene"
kylogreene1@tampabay1.rr1.com> wrote:
"Hugh Gundersen" <hsg@h-gee.co.uk> wrote in message
news:1llmr0pe45q8vej349562q4c5101jn7nh6@4ax.com...
Hi folks
Anyone come up against this?
Pulled up at t-lights - engine spluttered and stopped. Would not
start again? Seemed like it wanted to when cranked but not sustain
ignition.
found 40 amp fuse under hood blown so replaced it - still no go?
any ideas?
Sir Hugh of Bognor
My 98 740iL did the same thing. The garage diagnosed it as a clogged fuel
filter and a dead fuel pump. However, these actually turned out to be
symptoms rather than the problem. Once they got the fuel pump working
again, the car ran good for a few minutes and then blew the main fuse.
Rather than trace back to see why it blew, they simply replaced it. It
ran
again for a few minutes and then started to smoke from the ECU computer.
They couldn't figure out why, so they sent it to the BMW dealer in Tampa.
There they found that the sensor on the thermostat was grounding out only
once it got hot. That is why everything was testing out alright when
cold.
Usually this type of failure burns up the wiring harness, but in my case
it
didn't. It took out the ECU and EGS (transmission) computers.
You may be able to fix this yourself, but troubleshooting something
electrical of this nature can be difficult and if done wrong, very
expensive. I had to pay the first garage $1000 for the work they did and
the BMW dealer $3700 to find and fix the real problem.
Kyle.
Well it appears to be a seized fuel pump - Kaput - as the Germans call
it - can't moan after 8 years and 166K miles.
Let's hope that all it is...... Although the fault code readout says
something about "unable to read Auto box RAM" but works Ok although I
would like it re-programmed to shift into 5th in sport mode and shift
up on lift off the throttle on hard acceleration as is / was offered
by BMW when the car was new. Apparently the service is no longer
available as nobody has the update program to reprogram the gearbox.
Sir Hugh of Bognor
|
Hopefully that's all it is. Be aware, mine had those symptoms as well. I
didn't go into the whole story as its kind of long, but I did get "TRANS
FAILSAFE PROG" on the display when all of this started to go downhill.
After a few initial minutes from the time it quit at a stop sign near my
house, it did restart and I was able to drive home. It would not restart
after that. This was apparently the time that the EGS started to get
cooked. If you take this somewhere to be repaired, make sure they turn off
the car at the first sign of it "running rough" once they get the fuel pump
working. The garage I brought it to did not do this and the DME and EGS
literally caught fire shortly thereafter. The sensor on the thermostat was
trying to find a path to ground through them. This is not something that
memory and processor chips like very much.
Kyle. |
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