Every now and then (maybe once every 1-2months) my 95 850 would have trouble starting. The motor would crank but not roll over. Usually waiing a minute and then trying would work.

Today tho its happened 3 times (always after the engines warmed up). Each time the engine will initially roll over to idle, then slowly sputter out. When i try to start it, i hear the thing cranking desperately trying to start. Once i finally get it to start, it runs fine and when i get home and turn it off, it can be started again immediatly after.

Anyone have this problem before or know whats causing it?

 

Could be any number of things but given the symptoms, first thing I would suspect would be fuel pump relay giving you intermittent service.

You could attach a fuel pressure gauge to monitor it; alternatively you wire up a test light to the output of the fuel pump relay; if the test light goes out when you car won't start then you know what's going on...

 

how would i go about wiring up a testlight? i have the relay itself out of the car but dont really know where to go from there