What The Hell Did I Do???

[Carleton Hughes]

OK,this is bizzarre.

My '98 E300 turbo diesel would have intermittent AC problems,the more the AC was used,the less the blower would put out,although indicating differently.Sometimes when the car was hot the blower would not work at all.

In a fit of curiosity and desperation I searched the archives intent upon finding the problem.

AH,HA,I thought, bad blower regulator.

I removed the lower panel,pulled the torx screws holding the blower cover and removed the blower motor & regulator,hooked up my VOM and saw that the appropriate voltages were indeed reaching the motor,despite it's failure to respond.

I removed the regulator {a Behr,by the way,possibly a replacement} Saw there was no dielectric grease under it,grabbed some from my shop,applied it liberally and reinstalled everything,I also lubed the motor bearings.

The AC works now under all conditions,automatically and manually,whether this was due to the dieletric greasing or simply removing and replacing the wire connectors is a moot question.

[Anthony Cerami]

Yes ....
I have the same problem.....
In the summer on a hot day the air will not work if the car gets hot outside.
However when its parked inside and car is cool the air comes right on. When the car is hot parked in the sun I have to drive down the road with the windows down for several miles Then all at once to air comes on.
Now it is winter ......and the blower stopped working again ......so now I have no heat....As I drive it may come on but then turn off .........
THE PLACE IS HAUNTED!!
I have read many posts ......The only code i get at this point is the code for the sun sensor .....which I have replaced....along with a few others.....
Any body have any suggestions??