It has blown the #29 fuse more than once?

DWAYNEANDDANIELLE

MEMBER
2013 CHEVROLET EXPRESS
6.0L
V8
2WD
AUTOMATIC
103,843 MILES

Okay, I have the vehicle listed above 3500, 15 passenger van, I have replaced the rear blower, resistor, resistor pigtail and plug, and it still keeps blowing fuses! What should I look at next? It has blown the #29 fuse more than once, before I changed the blower and resistor. The #29 fuse is the rear blower fuse, located in the under driver's seat fuse box and it is a 30-amp j-body female fuse, I believe. (Small "Lego"-looking brick with a clear lid)

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

There is a rear blower control relays (3) I would disconnect and then replace the fuse to test the power lead wire to ground and then reinstall the relays one at a time until the fuse blows. Here are the wiring diagrams so you can see how the system works and the location of the relays.

Images (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Thursday, August 3rd, 2023 AT 4:40 PM

DWAYNEANDDANIELLE

MEMBER
2 POSTS
2013 CHEVROLET EXPRESS
6.0L
V8
2WD
AUTOMATIC
103,874 MILES

Okay I have the 15-passenger van listed above. I have replaced the rear blower fan, the resistor, and the pigtail/plug. With all of that the van still keeps blowing the #29 rear blower fuse under the driver's seat fuse box. It will run fine for 5 or 6 minutes then blow the fuse. The fuse is a 30 amp. Any ideas what to look at next?

Was this

answer

helpful?

Yes

No

Friday, August 4th, 2023 AT 1:15 PM (Merged)

KEN L