Sages,

My 1989, 240 DL, 346K miles on clock, left my son sit on the side of the road today, actually about an hour ago.

I was only a few miles away so he called and I showed up.

Sure enough the car would not start, turn over - yes, but not start.

I got down and had him turn the key on but not start it while I felt the fuel pump. I felt nothing, so I deduced that the fuel pump relay was to blame.

I then went home and pulled another fuel pump relay out of my working 1991, 240 and returned with an alligator clip as well in case it didn't work and I needed to jumper the pump to get it to work.

So I get back and try the jumper first, fuse 4 to 6, and had him crank the car. It started right up. Cool I thought. Then I went and placed the known good relay in the car and told him to start it. It would not start no matter what.

So I jumper it again and drive it home.

I then test both relays on my working 91 and the car starts both times.

So... What have I missed that the car starts and runs when jumpered but will not when I put the relay in place.

I need help ASAP as I need this car on the road by Tuesday!

Thanks in advance,

Matt