Fuse # 5 keeps blowing

[Flubie66]

Hi Guys
I have a 99 Expy and the # 5 fuse keeps blowing .
Wondered if this is a common issue . It controls a/c clutch , speed-control , and heater blend door . (That I'm aware of )Any common places to look for a short etc. ? I have changed out the blend door dial switch . Any advise on this will be much appreciated .
Thanks

 

[Bedrck47]

Print attached You should try and disconnect the connectors to see what is causing the fuse to blow

Deleted print

 

[Flubie66]

Thanks Bedrck47 that should help me troubleshoot this problem .

 

[Bedrck47]

Your Welcome

If interested read the attached

http://www.expeditionforum.com/threads/factory-service-manuals.25089/

 

[Bedrck47]

Are you able to pinpoint exactly when the fuse blows??

 

[Flubie66]

Not yet , that's my next step , to systematically turn each on to try and locate the short or switch / component that could be the cause . Changed the fuse one cool morning for heat . Blend door changed to heat no problem , ran the air via defrost setting and even checked to see if the cruise worked . All ok , on the way back from Doc Appt. Noticed cruise didn't work again , sure enough #5 was blown .

 

[docraymund]

Check the wire starting at the ac clutch going to the fuse. While tracing, pay close attention to wires that are touching bare metal.

 

[Bedrck47]

Don't pay any attention to docraymund's advice

The best way to troubleshoot this problem is to take one system at a time and not jump all over the place

 

[Bedrck47]

Sending you a private message you will see it in your inbox here on the forum