W126

86 300SDL grasping at straws here

I am having a meltdown here all the usual suspects are rounded up. My 1986 300SDL (that I have spent more time working on than driving no kidding) is a great car has me perplexed. It started and ran fine one day the next started and idled fine but gives me about 100RPM increase when I push the throttle with foot or under the hood so all the linkage is moving the way it should.

Chassis Model Number

Forums

1984 300sd Vacuum Readings

1984 300sd: Need to know vacuum spec. readings other than the'ol 20-23"
from the main vacuum hose.

Does anyone know the readings to:

transmission modulator value= 15-20"?

shutoff valve value= NEED THIS ONE

door actuator value

ignition switch

door check valve at firewall

Are the readings all suppose to be the same? 20-23 in of vacuum

I have Kent's books but do not see vacuum readings at the different branches of different systems aforementioned.

Thanks, Rafe.

Chassis Model Number

Forums

Pages