Hello,

I posted this a few days ago but never saw it come up

My car is an 81 240 dl wagon with 107k. It's been having fuel related problems for about 1 year. Initially it would not restart intermittently. I pulled the in tank pump and found the hose and filter nearly destroyed. I figured that out from finding a relation between the amount of fuel in the tank and the incidence of occurrence. I also replaced the relay.

Somewhere along in this period another infrequent problem became more frequent. The motor would start in the morning but would barely idle and would not rev. I put it in neutral, nursed it to rev normally and then it would be ok for the rest of the day.

Also fuel related but I think a different symptom was black smoke from the exhaust after a rough start. This only happened 2 or 3 times. After this stopped the car was pretty much normal.

The other afternoon after sitting for a couple of hours, it would not start but it had spark at all the plugs and was getting fuel in the cylinders. I thought it was flooding. A couple of hours later it tried to kick but couldn't quite make it. I puzzled about that overnight and the next day had an idea that if I removed the cold start valve electrical connection something might happen. Sure enough it started.

I think there's a temp sensor in the cold start loop. Would that or the valve be the more likely culprit or something else? Where is the temp sensor? my manual doesn't seem to show it . Is there a microfiche on the internet?

Thanks,

Hal