Vin:

Idle control valve is under the air filter housing, held down with a strap. Single two-wire connector and two large hoses. Check the hoses -- mine were actually loose on the barbs. They are a pain to replace, but it cured the stagger at takeoff!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!