blower motor doesn't work properly

[blazerTx]

Hello everybody,

blazer 4X4, 4.3L. 1995


Sometimes the blower motor doesn't work. I have changed the motor for a new one.I found a drop voltaje in the conector. The vaccum system is working verywell.I have also changed the blower switch. But the problem is still there.

I checked the voltaje in the conector, High 12V, medium and low 14.2V
I reviewed the fuses, it looks ok.

The front wiper works every other day.

Do you think that the problem could be the ignition switch?., or a relay located in the 'heater box'

Ktallman had the same problem. He mentioned that could be the ignition switch. But I want to make sure. (the ignition switch is $$$$ expensive)


thank you a lot,

I appreciate it.

[Ktallman]

I finally took my Blazer to the dealer that I purchased it from. They ran the codes and found nothing. They then cleaned all the connections. Everything is working fine so far.
P.S. I took it to a Dodge Dealer as my local Chevy dealer sucks as experienced in the past.

Ktallman

[Ktallman]

I forgot to mention that the bill was less then $70.

[blazerTx]

Hi Ktallman,

I finally found the problem. The f**** relay.The relay is located under the hood, right above the distributor cap.

Thanks a lot .