Vacumn nipple on 8.1

[Oklahoma MR C]

I need to locate the dash vacumn control source,loss the vacumn to control for dash A/C,heat,defrost and need to go back to start to re-trace from engine.I have now located the black plastic hose to the control that should be Vacumn,but cannot find thru firewall where it goes back to the engine source to make operate dash controls. will probably be around the throttle body? This is a Workhorse 8.1 engine package in a Damon 379 Problem Has been found,rubber hose off air ballast under front. Thanks ALL!!

[Oklahoma MR C]

I need to locate the dash vacumn control source,loss the vacumn to control for dash A/C,heat,defrost and need to go back to start to re-trace from engine.I have now located the black plastic hose to the control that should be Vacumn,but cannot find thru firewall where it goes back to the engine source to make operate dash controls. will probably be around the throttle body? This is a Workhorse 8.1 engine package in a Damon 379 Problem Has been found,rubber hose off air ballast under front. Thanks ALL!!

[edgray]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">See previous report on the AC control. </div></BLOCKQUOTE>
Oklahoma Mr. C: If you can give us a little more info, perhaps you will get some responses. We don't always know where to look previous "reports". ED

[TandW]

Look for vacuum bib on top of intake manifold at the rear. Mine has ports on it. Good luck!!!

[TandW]

Again, mine has 2 ports on it!!