+- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums)
+-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1)
+--- Forum: Pete & KW related Help... (/forumdisplay.php?fid=70)
+--- Thread: HVAC AIR COND MICRO RELAY Clicking behind dash. (/showthread.php?tid=8411)
HVAC AIR COND MICRO RELAY Clicking behind dash. - Dorito - 08-30-2022
I have a 2016 Peterbilt 389. I’ve replaced the relay. I changed the temperature blender actuator. I put a new belt. I replaced the o rings on the compressor lines.And now a new AC compressor. I also replaced both AC filters and made sure evaporator core was clean. STILL CLICKING!!! Any help would be greatly appreciated! It’s driving me nuts! Lol
RE: HVAC AIR COND MICRO RELAY Clicking behind dash. - Nilao - 08-31-2022
That relay is most likely controlled by the body controller. It may need a software update, or it could be sensing some other issue causing it to cycle the relay....you need a shop to hook up ESA and fing out what is causing that issue.
RE: HVAC AIR COND MICRO RELAY Clicking behind dash. - Pete365_Tampa - 09-06-2022
(08-30-2022 )Dorito Wrote: I have a 2016 Peterbilt 389. I’ve replaced the relay. I changed the temperature blender actuator. I put a new belt. I replaced the o rings on the compressor lines.And now a new AC compressor. I also replaced both AC filters and made sure evaporator core was clean. STILL CLICKING!!! Any help would be greatly appreciated! It’s driving me nuts! Lol
I have a similar issue with this relay...Did you get this resolved?
RE: HVAC AIR COND MICRO RELAY Clicking behind dash. - tree98 - 09-06-2022
I had a relay clicking behind the dash in my western star. It turned out to we a bundle of wires rubbing against the starter finally rubbed through and would intermittently ground out.
RE: HVAC AIR COND MICRO RELAY Clicking behind dash. - Dorito - 07-12-2023
(09-06-2022 )Pete365_Tampa Wrote:(08-30-2022 )Dorito Wrote: I have a 2016 Peterbilt 389. I’ve replaced the relay. I changed the temperature blender actuator. I put a new belt. I replaced the o rings on the compressor lines.And now a new AC compressor. I also replaced both AC filters and made sure evaporator core was clean. STILL CLICKING!!! Any help would be greatly appreciated! It’s driving me nuts! Lol
I have a similar issue with this relay...Did you get this resolved?
RE: HVAC AIR COND MICRO RELAY Clicking behind dash. - Dorito - 07-12-2023
(07-12-2023 )Dorito Wrote:(09-06-2022 )Pete365_Tampa Wrote:(08-30-2022 )Dorito Wrote: I have a 2016 Peterbilt 389. I’ve replaced the relay. I changed the temperature blender actuator. I put a new belt. I replaced the o rings on the compressor lines.And now a new AC compressor. I also replaced both AC filters and made sure evaporator core was clean. STILL CLICKING!!! Any help would be greatly appreciated! It’s driving me nuts! Lol
I have a similar issue with this relay...Did you get this resolved?