Hi:

I have an '84 240 wagon and the motor has power fluctuations, especially when it hasn't full warmed up. It is very noticable when idleing, and happens upon take off. When applying constant pressure to the throttle, it lurches a bit, having definate surges in the motor. Feels like fuel pressure isn't constant. A Mechanic mentioned that it might be an idle stablizer and pointed out a cylindrical object with 2 hoses on it. It is just behind the distributor. He said that if I take it off and spray carb cleaner in it a few times and clean it out that it might help.

Any ideas?

Thanks

Well, what is the idle speed? Does the idle fluctuate? If you didn't mention the idle symptom, I would direct you elsewhere than the idle control valve (aka motor).

Could be that. Could be an air leak after the AMM. Check the bellows hose between the AMM and the throttle body for a tear. Spray some carb cleaner all around that and the TB to detect a leak. Try also cleaning and re adjusting the TB. Don't be surprised if afrerward, your idle sings at 1500 RPM or more.

Rap on the ICV and se if the idle changes, lowers. If so, try cleaning out the port to addure the valve moves freely.

My '84 had a clean TB and good ICV. The acceleration if good off the line, but at 2500 I feel an additional surge. Can't help but wonder what I'm missing in terms of pwer at the lower end. And what is causing this....