Quote:
Originally Posted by sixto
Do you mean the ALDA is off the IP or the ALDA is on the IP but not functioning?
ALDAs aren't subject to vacuum but to pressure. You might in fact damage an ALDA by applying a vacuum to determine if it's intact. Instead, apply pressure and look for nothing more than a slow leak. Any ALDA from '78 through '95 should work on your car so there's a wide range of seconds for you.
I'm not familiar with the '85 TD but I don't think the firewall switchover valve has anything to do with the transmission. Could it be you see a line from the switchover valve splitting with one branch going to the ALDA and the other to the transmission vacuum amplifier? From '86 there's a temperature switch and switchover valve attached to the transmission vacuum amplifier. Maybe '85s have it as well.
Sixto
87 300D
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Sixto, thank you so very much!
Well, I remember I did get help on testing and failed; bet it was pressure. My tester is my mouth and have used it many times working on the Volkswagen (vacuum based F.I.). Don't think I could suck hard enough to do damage?
Who can help?
The first two show a black with red and black with green that tee in after the first vacuum buffer; the green thing that I forgot the proper name for...
The third is the fuel enrichment.