- Joined
- Jan 8, 2015
- Posts
- 9,428
- Reaction score
- 5,223
- Location
- St. Louis
- Ram Year
- 2014
- Engine
- 3.6 Pentastar
The other day when parking in my garage I noticed my coolant temps getting up to 230 before going back down to about 219. It wasn't a very hot day, maybe mid 70s and about a mile of mild driving before reaching my house in the neighborhood.
I plan on changing the coolant soon but before I do I wanted to know if this electric fan behavior seems normal to anyone and/or if someone knows exactly which temperature my PWM fan should be ramping up at. At present, the fan only comes on under two scenarios:
1. When the coolant temp reaches 230 (then drops to about 219 and turns off)
2. When I turn on the AC (turns on a few seconds after engaging and remains on continuously, temperatures hover around 213 with AC on)
It seems to only be running at only one speed too but I remember it being louder in the past and ramping up when idling. Occasionally when it's below 230 I will see it wobble left to right like it was about to turn on but then stops. Additionally, I will occasionally hear a high pitched whine when I shut off the vehicle for a short time. I've tried using AlfaOBD to see if I can engage the PWM test but all I here is a click sound when I start the test and another (slightly different whine) sound then another click when the test ends with the fan never having engaged (not even the left right wobble). What I think is happening is that the fan is only moving when commanded by the PCM to be on high-speed but it is only spinning at low-speed.
Any thoughts? Anyone deal with something similar? Do I need a new fan or could this be something else?
2014 Ram 1500 Express 3.6L 4x4 845RE
I plan on changing the coolant soon but before I do I wanted to know if this electric fan behavior seems normal to anyone and/or if someone knows exactly which temperature my PWM fan should be ramping up at. At present, the fan only comes on under two scenarios:
1. When the coolant temp reaches 230 (then drops to about 219 and turns off)
2. When I turn on the AC (turns on a few seconds after engaging and remains on continuously, temperatures hover around 213 with AC on)
It seems to only be running at only one speed too but I remember it being louder in the past and ramping up when idling. Occasionally when it's below 230 I will see it wobble left to right like it was about to turn on but then stops. Additionally, I will occasionally hear a high pitched whine when I shut off the vehicle for a short time. I've tried using AlfaOBD to see if I can engage the PWM test but all I here is a click sound when I start the test and another (slightly different whine) sound then another click when the test ends with the fan never having engaged (not even the left right wobble). What I think is happening is that the fan is only moving when commanded by the PCM to be on high-speed but it is only spinning at low-speed.
Any thoughts? Anyone deal with something similar? Do I need a new fan or could this be something else?
2014 Ram 1500 Express 3.6L 4x4 845RE