[ckmaggie]

I have done my search and I think it is the idle control valve...

My 85 3.2 has a perfect idle with the expection of on two occassions when in heavy traffic the idle began to pulse between 800 and 1500 when I would stop.

As I sat in traffic and the engine temp rose to the 10 o'clock mark, the idle pulsed and then as traffic broke, and engine temp returned to normal, the problem went away. Have no issues on start up, when cold, etc; only in the described above scenario.

In searching archives, seems that idle control valve is likley culprit. If so, is replacing the unit the only solution or can it be "cleaned".

Thanks
Chris