Where is the speedometer cable on a car?
by Chris Stevenson. The speedometer cable translates the transmission gear speed through a cable housing and up to the speedometer gauge in the back of the instrument cluster. Connected at both ends by two small gears (or slots), the speedometer cable rotates within the housing and tabulates the speed of the vehicle.
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.
How can I get my speedometer to go up?
Tighten gently with pliers or channel locks. Start the engine and allow it to idle or press the accelerator pedal to bring the engine speed up a little. The speedometer gauge should now register a steady rpm that goes up and down with acceleration. Remove the jack stands and lower the vehicle to the ground.
The speedometer cable is located on top of the transmission, and it sends an electrical signal into the computer of the car. Find out how a speedometer cable runs up and under the dash of the car with help from an ASE-certified technician in this free video on replacing speedometer cables.
What happens if you remove the speedometer housing?
It could be retained by a threaded collar, any combination of bolts or nuts, or a retaining clip. Pull the speedometer housing from the transmission. Note: It is possible that some transmission fluid could be lost when the speedometer cable is removed. It would be advised to have a drain pan available to catch any lost fluid.
How do you remove a speedometer cable from a firewall?
If the speedometer cable cannot be reached, consult a repair manual. Step 5: Remove the firewall grommet. The speedometer cable housing has a grommet where it passes through the firewall. Using a screwdriver, push the grommet free from the firewall. Remove any support brackets that hold the speedometer cable in place.