Tachometer and speedometer quit working and loss of power?
1994 OLDSMOBILE SILHOUETTE
180,000 MILES
KCMOREHOUSE
MEMBER
1 POST
Starts up fine, but no power. Also, the blower motor will work with acc on but when you start the engine no more blower.
Feb 28, 2023 at 10:03 AM
Advertisement
JACOBANDNICKOLAS
✓ASE Certified Mechanic
110,193 POSTS
Hi,
Did the blower motor issue start at the same time as the speedo and tach issue? Let me know that. Also, I need you to scan the computer to determine if there are any useful diagnostic trouble codes.
This vehicle has an OBD1 system that doesn't require a scan tool for retrieving codes. All you need is a short jumper wire or even a paper clip will work.
Follow the directions in this link and let me know what you find:
Let me know if there are any other electrical concerns.
Take care,
Joe
Feb 28, 2023 at 8:30 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.