A/C system

Asked by GuruT8VHJ Jul 11, 2018 at 02:30 AM about the 2012 Nissan Sentra 2.0 SR

Question type: Maintenance & Repair

I've got a 2012 Nissan  Sentra AC went out.
Narrowed it down to compresser clutch replaced it
twice....second due to the first (Amazon part) coil
and pulley did not seat properly. Did get it fixed
worked for about a week and back out again.
Clutch will engage when I bypass( hot wire). Will
also blow cold air into the cabin when I do this
while it runs. The ground is good(check). Pressure
switch changed(check). Expansion Valve replaced
before the clutch job. Seems electrical but cant
seem to figure where. Just hoping to get another
perspective another brain or two if you know what I
mean. Appreciate any input. Thanks greatly

1 Answer

GuruT8VHJ answered 6 years ago

I wish it was that simple. Supposedly there is no relay which makes it difficult to troubleshoot. If so it's not obvious. I thought about contacting the dealer to double check. All fuses seem to be in working order. Thought this is weird, I pull the pig tail off the pressure switch and the car dies. Seems to have camshaft and a sum of other sensors tied in to the presure switch. One more reason to make it complicated.

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