1995 BMW 740 BMW stalled on hwy, wont start now

Tiny
LIMARXY
  • MEMBER
  • 1995 BMW 740
  • V8
  • 2WD
  • AUTOMATIC
  • 189,000 MILES
We were driving, bmw stalled, towed home, it cranks but no start, there is spark, we put starter fluid in intacke the car began to start, the fuel pump when taken out of car and connected + to + and - to - works, but when you plug pump back to the connector it does not work, could it be a computer? Relays works we installed new ones, but once the car sits for three weeks it starts for 20 min then dies then sits for three weeks it starts then dies again, help, if its a computer maybe I can change the burn out resistor inside which one would it be?
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Thursday, February 5th, 2009 AT 5:53 PM

6 Replies

Tiny
DR. HAGERTY
  • MEMBER
Change the fuel pump.
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Thursday, February 5th, 2009 AT 6:57 PM
Tiny
LIMARXY
  • MEMBER
Hello I have made the donation dont know what amount is preffered, but can some one help up please, we just want to know if its worth fixing a car if its going to cost us over a grand or cheaper, thanks
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Friday, February 6th, 2009 AT 11:57 PM
Tiny
JACK42
  • MEMBER
Labor guide shows 2.4 hours of labor to do the pump andthe pump is around $400.00. You should come in under $1000 by a few hundered. Fixing or selling depends on your situation, you already own it with no payments then I would fix it
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Saturday, February 7th, 2009 AT 8:57 AM
Tiny
LIMARXY
  • MEMBER
Hello, but the pump works, the signal from the computer is not going through the wire, if you take the pump out of the car and connect it it works, if you plug it in back the connector and try to start with the key it does not even work so we took a volt meter and put it inside the connector to check if there is a voltage going throught, when we try to start on the vold meter there is no signal from the computer we traced the wire from the pump connector to the computer, so then we try to hot wire we plug the pump back to the car connctor and connected sepparate wires the pump, the pump began to make noise wich means it works an dpumps gas, but it when turn a key it wont start, (maybe a fuel filter) but I think the computer broke and shut down the whole fuel system, thanks
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Saturday, February 7th, 2009 AT 1:20 PM
Tiny
DR. HAGERTY
  • MEMBER
If you have a DME (computer) problem, I know of a place that can repair the one in the car, which is less expensive than replacement.
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Saturday, February 7th, 2009 AT 11:37 PM
Tiny
LIMARXY
  • MEMBER
I think this is the computer, because everything else works, this would be great if I can fix it rather then change it, let me know where can I send the unit, is there a place to check a unit before sending I took the computer out of the car, so I am ready to send let me know where thanks
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Sunday, February 8th, 2009 AT 12:11 AM

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