Hi all. Still trying to figure our why our (until now) trusty 1988 245 won't go.
Looking through list after list of Volvo info, I thought I would check our fuel pressure relay. It looks like it might be the culprit.
Can someone explan to me how this is supposed to work? I understand how relays work, here is the scenario for ours (observed in the car just now (it's minus 32C, so excuse the rough sentences, talk about lousy weather to diagnose a stuck car!!).
If you are looking at the relay installed (BTW, we have the white plastic relay in our 1988), but with the cover off, there are two coils. The left and the right. When I turn the key in the ignition to position three ("on"), this relay clicks. The other relay remains motionless and there is no noise from my fuel pump. Being a bit of an idiot, I figured what happens if... So carefully inserting a tiny screwdriver to close the second relay (the right hand side), I noticed that then I could in fact hear the fuel pump merrily whirring away. Still the car will not start.
Can someone explain just what is supposed to be the sequence of operation in a functioning fuel pressure relay? Which side should be closed? Opened? When?
The car is still cranking wonderfully, but it just won't catch. It ran so wonderfully when I parked it last Thursday night, wish I knew what happened that night!
Chris Mears Charlottetown, PEI
1988 Volvo 245GL "Daisy"