W 250 Pickup L6-359 5.9L DSL (1989)
Throttle Valve Cable/Linkage: Adjustments
With the engine at operating temperature, adjust the idle speed of the engine using an optical tachometer.
ADJUSTMENT PROCEDURE
Perform the transmission throttle cable adjustment while the engine is at normal operating temperature.
Observe the position of the transmission throttle slotted cable end and actuation pin on the throttle cam.
With the throttle lever seated against the low idle stop screw (normal foot off throttle position), the actuation pin and the slotted cable end of the
throttle cable should have a clearance of 5.7mm [0.225 inch].
If the throttle cable is not positioned correctly, then adjustments can be made by lifting the locking pawl and sliding the cable to the proper
position.
The lock pawl should need only finger pressure to return to locked position.
