Quote:
Originally Posted by sixto
I don't agree with the diagram. The arrow is pointing to a vent line with the other end hanging loose in the driver footwell. You'd hear some serious whistling under the dash if the vent line were sucking air to the tune of 11.4" Hg. You should test for vacuum at the line with the damper (green cylinder) that continues to the transmission modulator. IIRC the damper is directional. The other line should connect directly to the engine vacuum pump.
Sixto
87 300D
|
My thoughts exactly, in other vac diagrams that use this type of control valve the 90 degree port often goes to the passenger compartment, if you have as much vacuum as they say at that port the sound would be impossibly annoying and non-productive to boot. One might not be able to hold a sufficient vacuum to the transmission although that's just a guess.
I agree that the reading should be taken from the line with the dashpot that runs to the transmission. I will be doing that check tomorrow. Unfortunately these instructions resulted in my assumption that my control valve was bad, but it may have been anyway.
Thanks
Steve A