Jump to content

  • Welcome to AutoLanka

    :action-smiley-028: We found you speeding on AutoLanka Forums without any registration! If you want the best experience, please sign in. Safe driving! 

fixing Idle up vacuum relay

Nishan.dj

By Nishan.dj
in DIY (Do-It-Yourself)

 Share

Recommended Posts

Nishan.dj Newbie

Nishan.dj

Posted
Posted

fixing Idle up vacuum relay (DIY)

(This is only relevant for older vehicles which does not have ECU or can drive through an EMP Attack :) )

When the AC is turned on the engine RPM should raise a bit to cater for the load it gets. To do so a vacuum line coming from alternator is connected to a mechanical suction unit (idle up switch). It pulls the accelerator cable so that the RPM increases. When AC compressor turns off the electrical relay valve cut off the vacuum suction to get the engine back to it's normal idle RPM.
The guy who fixed the Idle up switch to my jeep has forgotten the relay. So it always gave a high RPM at idle. I had to fix the cut off relay for that. Below is the pics of those two units. 

18891670_955548577920753_8509142888806374325_o.thumb.jpg.bd8e546cca2fd8a171fd3f4a2dfbb23d.jpg

Relay

18839600_955548524587425_5754514057830858752_n.thumb.jpg.9ae6b101928fa14a71191dc099629006.jpg

Pull Switch

Happy DIY project if you own an oldie with dual AC :)

 

 

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

AutoLanka Cars For Sale

Post Your Ad Free [Click Here]



×
×
  • Create New...