Started up the 2002 EXP today and thought the fuel pump was failing. Get a consistant thump every 1 second. Later today i looked and noted the noise is coming from drivers rear fender well (i think). I took off the small plastic cover over the rear blower motor and thought it was in that area. Disconnectd the motor and still thumps. Disconnected the blower motor resistor block and still thumps. Looked at the overhead consol and the rear blower was on HI. Turned the blower down and as you reduce speed the noise volumn is lower. Turned the switch off and i thought the noise was gone. Pulled the cup holder above the fender well looking for a relay or something in that area. I cant isolate the noise, but seems to be real close to that area. Later i heard the noise, very faint, and the blower switch was off. Turned it to 1-2-3 and it gets much louder. Turned it off and very slight noise. What am i looking for ? My hearing is not accurate enough to find it.

 

Classic rear blend door actuator failure. Need to pull the panel off to get at it. Note that you will see 2 electric actuators back there behind the blower unit. Second one controls air direction as no vacuum controllers in the rear. I read a post once where a guy figured out which wire to cut to make it stop by working through the cup holder.

 

o.k., i did see a couple wire plugs, maybe i can disconnect thru the cup holder. Dont have extra time to take the entire panel off right now. This SUV has been set back as the spare after the EDGE showed up. Thanks for the advice.