89 760 Turbo Stall

[sausalitoroman]

I have an 89 760 Turbo that stalls while driving. The car usually will start up, though it is taking longer and is happening more often. Is there a fuel pump relay switch and where would it be located?

[Kmaniac in California USA]

Yes, your car does have a fuel pump relay. It is in the relay panel, behind the fuse box. The fuse box and relay panel are behind your ashtray in the center console.

Your intermittent stalling while driving could be caused by more than just the fuel pump relay. Your problem could be fuel system related or ignition system related. No way of telling just from your description.

Regarding the fuel system, you should be aware that your car has one fuel pump relay and two fuel pumps. The one relay powers both pumps. Each pump is powered from separate electrical circuits and fuses.

One thing I have learned owning my 740 is that the problem component may not be what you think it could be at first.

Anyway, let us know what you find as you delve into your 760, over there on the other side of the Bay.

[Peter Coutts]

See my previous...this is a good place to start before you start spending serious money. A similar relay was found to be a problem with my brake lights. Good luck.

Previous Posting:
This item may help those in need...I have an 87 740 that has been experiencing periodic stalling while driving. Car has always started good. After sitting roadside for a few moments the car will start after turning over several times. I replaced plugs, wires and cap..still occurred.

The problem was found in the fuel pump/ignition computer relay found under the ashtray with the fuses. Upon taking out relay and removing the relay cover I found three suspect soldering points on the circuit board..they break down with age. I resoldered the points and replaced the relay and the car has not stalled since. Working great.

I purchased a new relay for $80.00 CDN and keep it in my glove box in case more solder joints breakdown when I am on the road.