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Thread: G54b 2.6 carb A/C idle up help.

  1. #1

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    G54b 2.6 carb A/C idle up help.

    I just recently installed an A/C setup that I got from a junkyard "87 ram50 4x4 2.6 G54B I installed it in my "88 mitsu MM 4x4 with G54B I retrofitted it to R134a. Added a new receiver drier, and it all works in some capacity, but the problem is I'm not sure how to add or adjust the a/c idle up on the oem Mikuni carb, I have the OEM solenoid and wiring here, but I need to know how is the stock vacuum ines setup for the a/c idle up system, the A/C works when your on the freeway or when you're driving, but in city driving
    I have to turn on and off the a/c at every stop sign to keep the truck running and this is for obvious reasons dangerous, so how do I add the idle up on my truck thanks for any help.

  2. #2




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    The harness for A/C should have a plug to hook up the a/c idle up solenoid. Otherwise, tap off the a/c clutch wire and use a relay to apply 12v to the solenoid when the clutch engages.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  3. #3

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    yes but how exactly is the vacuum lines supposed to go if anyone has a picture of where all the lines come from go to that would help a lot.

  4. #4

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    Quote Originally Posted by mitsubishikid View Post
    yes but how exactly is the vacuum lines supposed to go if anyone has a picture of where all the lines come from go to that would help a lot.
    See if this helps:

    Vacuum_Hose_Routing_2.6L_Cal.jpg

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