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2012 Edge with 3.5L Rough Idle with A\C On

17K views 2 replies 3 participants last post by  carljak 
#1 ·
Recently my 2012 Edge with the 3.5L was loping at idle with the A\C on. I add Lucas fuel injector and cleaned the throttle body intake, which seemed to help a little, but the problem persists. Also, I noticed some oil in the intake duct. Any ideas?
 
#2 ·
Does the rough idle or loping stop when you disengage your A/C? If so, I would say your issue lies somewhere with your A/C compressor - Has your A/C system been serviced recently? Did they add the proper amount of refrigerant oil? Good questions to ask...

If the problem is persistent with or without the A/C on, I would ask you when the last time your plugs were inspected? Since you mentioned that using a fuel injector seemed to give favorable results, perhaps you just have a few dirty plugs on your hands. That would be where I would start my investigation......Good luck and keep us posted!
 
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