Hi folks, I'm hoping you can help me. My 1986 Volvo 240DL Sedan was starting and idling poorly and was slow to pick up, then it just dies on the side of the road. Now it's home where my brother and I are taking it apart bit by bit to try to find the problem. Still no real luck. The car will start up after a few tries, but dies immediately when you take your foot of the gas. We know that gas is getting to the fuel injector because we've taken off the hoses leading to that. Here's what we've done so far:
We've changed the spark plugs, not the wires.
We've checked the distributor for cracks.
We took off the throttle housing and cleaned it thoroughly (that was a mess).
The butterfly in the throttle seems to be opening although we do not hear a "click" sound in the throttle sensorlike the Chilton's manual says we should. We don't know if this is a problem.
There is what appears to be a vaccuum operated switch between the fuel line and the fuel injector. We cannot find this piece referred to at all in the manual. We took that piece off and cleaned it, tested the vaccuum pressure (slight).
Any ideas about what this is exactly? Fuel is making it through this piece because after we removed it there was fuel runoff.
What should we do next and what could the problem be?
Thanks so much, I'm sorry this is so long! ~claudie~