Why is the Speedo not working on my Duramax?

Why is the Speedo not working on my Duramax?

Speedo isn’t working and the service Brake system light is on along with the parking brake indicator and the abs lamp. Still isn’t showing the gear indicator. What other speed sensors does this truck have?

What happens to the speedometer on a Chevy Silverado?

Has the speedometer on your Chevy Silverado stopped telling you your actual speed? Does it get to zero and get stuck, then suddenly tell you you’re going 80 when you know you’re only going 20?

How big is the ring gear on a Silverado 3500 HD?

3500 HD models with the available Duramax 6.6L V8 have a ring gear size of up to 12 inches, which allows for more torque coming out of first gear. 3500 HD models with the available Duramax 6.6 V8 have a ring gear size of up to 12 inches, which allows for more torque coming out of first gear.

What kind of transmission does Chevy Silverado 3500 have?

3500 HD models with the available Duramax 6.6 V8 have a ring gear size of up to 12 inches, which allows for more torque coming out of first gear. The Allison ® 10-speed automatic transmission is designed specifically for heavy-duty trucks to deliver more strength, improved efficiency and a smoother driving experience than before.

Why does my GMC Duramax not shift at all?

It is saying “service brake system” on the cluster and the abs and brake light is on. It has started doing all of this at the same time. Bump. Anyone have any ideas? I’m going to get an nsbu switch tomorrow and see if that will fix it. Do these sounds like symptoms of the nsbu switch?

Why is my tachometer not working on my GMC Sierra?

Looks like somebody had fun in there. That is the harness that feeds into the firewall to the cluster, and sure enough the white wire you mentioned was completely chewed through. Got them all repaired and viola, tachometer is now working. Would you happen to know what that grey wire goes to?

Why is the speedometer on my Chevy truck not working?

Inaccurate readings after changes to your Chevy: This is common with truck and SUV owners who change their wheels and tires, but can also happen if the wheel/tire combo is changed on a car. Larger combos, or those with different dimensions, will cause an inaccurate reading and the speedometer must be re-calibrated to regain accuracy.