Having problems with your 2005 Chevrolet Silverado 1500HD ?
05 chev 2500, blower motor 3rd speed was not working and now it only works on 5?
This is due to the fan switch or blower switch, the one in the dash not functioning properly. You need to replace this switch.
Repair Help & Product Troubleshooting for 2005 Chevrolet Silverado 1500HD
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.