Hi there,
Thank you for the donation,
On the end of the inlet manifold is the A/C idle up valve, this picks up the engine revs slightly whit the A/C on, I would say that this is not working, get your mechanic to check it out, it may only be a broken vacuum hose or a faulty valve, start here.
Mark (mhpautos)
Saturday, August 29th, 2020 AT 12:16 PM
(Merged)