I have a 1971 280SE 3.5 coupe. It is in excellent shape, however yesterday I went for a drive after having the car sit for 2-3 months and the engine died several times, prior to this it ran fine.

While driving yesterday, the engine keep dieing on me. I drove a couple of blocks from my home when it just died, it would restart after a minute or two. I then continued on and thinking it just needed to warm up so I got on the freeway and drove 10 miles and then parked. When I tried to return the engine died three more times while driving home! When trying to restart, the engine turns over, though it will not completely engage. It acts as though it is not getting gas, even though I have a full tank.

Does anyone have any suggestions as to what might be going on? I was thinking it might be a fuel relay going bad, or possibly a vacuum leak?

Any help would be appreciated.

Thanks,

Dave