Post by
A1218 »
https://forums.nicoclub.com/a1218-u297613.html
Thu Aug 06, 2020 7:22 pm
On my 97 Pathfinder I've noticed that the vehicle idles a bit rougher with the A/C system on. Not by a drastic amount but just enough that you notice it when the a/c is on.
Also with the a/c on and you accelerate sometimes you would hear a slight rattle noise. Sometimes its there and sometimes its not. But never with the a/c off. Ive tried to listen for the noise from the engine bay with the hood open but cannot hear anything. Only when inside and cabin is quiet you hear it. But it does not sound like its coming from inside vehicle.
The a/c compressor is new along with the dryer/accumulator. It has been vacuumed and recharged. Did this repair about a week ago.
I've had this noise even before I had the work done on a/c system.
Everything is maintained well on the vehicle such as plugs, oil, filters, fuel filter, new maf sensor, new tps sensor, cleaned throttle body, etc. In the past month I have also changed a few of those small vacuum lines. Is this normal operation when the a/c is on?
The only code I have is a P1441 code that comes and goes and that has been there for 2 years now. Cannot narrow down that issue as I have changed the vacuum cut bypass valve and solenoid and code still comes back. The evap canister was replaced once.