3rd time replacing the Blower Motor Relay

[waterkeeper03]

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]

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]

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]

i'v seen where the motors were blowing resistors but on dodge/chry

[MT-2500]

Originally Posted by waterkeeper03

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]

Have you changed out the cabin air filter yet?

[waterkeeper03]

Originally Posted by MT-2500

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]

Originally Posted by waterkeeper03

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.