Hello everyone,
got an 1989 300E with 186,700miles and a bad idling problem...
When the engine is cold, I start it and unless I keep the engine at 1000 to 1200 RPM by holding the gas pedal... it will surge between 1200 and 0 RPM until it dies......
If I hold down the accelerator and keep it at 1200 RPM for about 2 minutes straight... I can eventually let go of the gas pedal slowly and it will idle at a low but sustainable 500 - 450 RPM...
HELP!
Also..............................
I would like everyone's opinion on putting metal clamps on the vaccum hoses that connect to the idle control valve...
Do you think it is safe to do that?
There is certainly enough space to do it!
I just though that it would be a good little "upgrade"...
I recently cleaned the ICV and saw some very nasty light brown fluid spill out... (used carb cleaner!

)
I replaced it and it still sucks... NO IMPROVEMENT!