Our Community is 940,000 Strong. Join Us.


3rd time replacing the Blower Motor Relay


waterkeeper03
10-28-2010, 04:45 PM
2004 Impala 3.4
10 speed fan

it's good for about a month, then shorts out again.
first time I had only low speed fan.
next time I had to remove the relay to shut off the fan
this time I have no fan at all

It was suggested that maybe I need to replace the control unit for the ac (where I adjust the fan speed and temp)

any ideas?

MT-2500
10-31-2010, 08:29 AM
You might want to check the blower motor.
Check for ground and amp draw on the blower motor.

Does the havc ever set any body computer/havc codes?

waterkeeper03
11-09-2010, 04:09 PM
it has never thrown any kind of codes. I will go have the motor tested, is is better to just take the motor out and to a shop, or to take the whole car??

I'm not going to pay them to trouble shoot this whole thing

inafogg
11-09-2010, 04:28 PM
i'v seen where the motors were blowing resistors but on dodge/chry

MT-2500
11-09-2010, 04:46 PM
it has never thrown any kind of codes. I will go have the motor tested, is is better to just take the motor out and to a shop, or to take the whole car??

I'm not going to pay them to trouble shoot this whole thing

Was the Havc/body computer checked with a Havc/body capable scanner?
Or did you just look for OBD11 codes?

Take the whole car to them.

Jerk of all trades
11-21-2010, 06:45 PM
Have you changed out the cabin air filter yet?

waterkeeper03
11-27-2010, 09:40 AM
Was the Havc/body computer checked with a Havc/body capable scanner?
Or did you just look for OBD11 codes?

Take the whole car to them.

I have not scanned it for anything, there isn't any sign that there is a code being thrown. but i have a friend with an obd11 scanner, don't know if it's body/hvac capable

Have you changed out the cabin air filter yet? I didn't even know there was one untill you said that. it's under the black plastic cowl cover under the hood?

MT-2500
11-27-2010, 12:41 PM
I have not scanned it for anything, there isn't any sign that there is a code being thrown. but i have a friend with an obd11 scanner, don't know if it's body/hvac capable

I didn't even know there was one untill you said that. it's under the black plastic cowl cover under the hood?

I would be checking the amp draw on fan motor.
If you get any Body/Havc computer codes post back code no and amp draw.

Add your comment to this topic!