08 Box Base Radiator fans

[vza]

I tested my fans today(or thought I did) on my 08 Box Base with my Durametric. When I activated the fans I only heard only the R side fan go on and it didn't sound that good, sounded sort of labored and then it stopped after a few moments. Didn't have to stop it with the durametric. Happened when I repeated the test. What is my next step? Thanks V

[JFP in PA]

I saw the photo of this car you posted on another website, and it looks like it has taken a hit to the front end along with its other issues. The fans could either be jammed, or burnt out.  I would suggest pulling the bashed in front fascia and getting a good look at them to see if they turn freely by hand, which would also allow you to test them electrically.  As the car is an 08, these may be pulse width modulated controlled fans, and they can be pricey..........

[vza]

Yeah, I had the bumper off briefly before I road tested it(really!) The bumper reinforcement piece was missing and one bracket for it was trashed. AC line a bit banged up.

No sign of damage near the fans. Are there 2 fans.. one on each side? Should the durametric turn both on together? Thanks V

[JFP in PA]

There are two fans, and Durametric will turn them both on, but only if they are operable.  Check to see if the turn freely by hand.  You can also try by passing the system by unplugging the fans and applying power and ground to see if they run that way.

[vza]

OK...just 12V from the batt to the connector? 

[JFP in PA]

They operate on 12V, if they are pulse width modulated versions, the controller is in the fan motor itself; if they are not PWM, look for burnt out resistors mounted on the fan shroud.

[vza]

Tested the fans with a new battery and they both activated with the durametric. There seems to be a lot of low voltage issues i suspect a bad alternator.