I have been hearing a humming which I believe is from the main pump. At least that's what a check with the stethoscope tells me. A mechanic I talked to told me to check all the mounting bolts at the main pump and make sure the rubber feet the pump is mounted in are doing their job. When I checked, I found one of the bolts that holds the pump to the plate that is mounted in rubber was totally loose. I tightened it up and checked all the others. I don't know yet if this will reduce the humming noise because the car is out of commission right now with other repairs, but it couldn't have hurt. I'll find out pretty soon. Good luck.
--
Thanks to everyone for the help, Doug C. 81 242 Brick Off Blocks, stock; 86 240, 129K

the likely problem is that your intank pump is not working or the feed tube to the pump is disentegrated. This causes the main pump to work double time, blowing fuses and making noise. Search the archives for bung-nut, or intank pump for replacemnt details.

Matt
--
'82 DL - 153k, '93 945 - 101k

In my '80 245, I can hear the fuel pump kick in as well when I start it. I can also hear it come on when I put the key in the second position (II) before cranking it.

I had a problem with the fuse as well a while back. There was this strange smell coming from the fuse box. Looking closer, I saw that the fuel pump fuse was half melted! While I was checking, I saw a spark jump across the fuse, never a good sign.

When I was having the problem, the car would just quit every once and a while. Usually it would be from a cold start, and not while the car was running. Still, after replacing the half melted fuse, (and giving the fuse box a good cleaning) I haven't had any problems.

I would take out all the fuses, and clean all the contacts with a wire brush. MAKE SURE YOU DISCONNECT THE BATTERY AT THE (-) TERMINAL FIRST! Don't forget that step! After you brush off the contacts, pinch the connectors a little bit, but not too much. If you bend them too much, you will either break the tabs, or it will be very difficult to replace the fuses.

I would also reccomend getting the newer fuse types, I forget what they are called, but they are fuses with the filament encased in glass (instead of just laying across the fuse exposed.)

You might also try hooking up the fuel pump to fuse # 14. On my DL, 14 is a spare I believe, but that might not be the case on your GL. This might help you isolate the problem as well.

Hope this helps.

Hey Bob,

Sounds like either the pump that was replaced has gone prematurely south, or there seems to be some unexplained resistance somewhere in the relay and/or wiring system. By the way, have you replaced the relay? Another place to check would be the ground for the pump.

Good luck and happy bricking!!!

Richard

87 245 DL 344,000 km
82 242 GLT 121,000 km