2016 Jeep Grand Cherokee Laredo air conditioning not cold with ESS
Recently bought a 2016 Jeep Grand Cherokee Laredo 4x4 with electronic
stop-start (ESS) technology. When idle at a stop light, the air conditioning
stops blowing cold air until I start back up again. Is this normal? Is A/C chiller
tied to the engine running?
No that is not normal my wife's vehicle was doing the same thing and it is a 2014 Nissan Rogue it came with a warranty but they were trying to say that was normal being a mechanic myself I suggest a bad expansion valve to them but of course they did not what to hear that so I changed out the expansion valve myself and that took care of the problem.
The A/C compressor does indeed shut down when the engine stops. Depending on the temperature and time there may or may not be enough residual cooling. When the temperature rises a preset amount, the ESS system is supposed to automatically restart the engine, but this rise is enough for most people to notice. The product on this website might be of interest: www.smartstopstart.com
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