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There can be multiple reasons for the speedometer to malfunction, and replacement need not be the only solution. Did You Know?Before the invention of the speed gun, cars in the early 20th century were required to have two speedometers, one on the dashboard and one on the front fender, so that police could see how fast they were going!A speedometer is an instrument which provides the driver with instantaneous readings of speed.
B4 my xto isuzu speedo and odometer was not functioning.after I replaced the speed sensor the odometer is now working but still the speedometer was not.
I have a 1992 chevy Silverado 4wd 4.3, the problem is the speedometer will reach 25 mph BEFORE I even put it in gear! I had installed foglights at the bottom grille of my 1996 mercedes c220 then my speedometer stopped working. The oxygen sensor works by sending information to your vehiclea€™s engine control unit (ECU) to help your car run efficiently as well as to reduce emissions. Click here to download your copy of my eBook, "Simple Car Care Tips and Advice" It's filled with usefull, easy to understand, automotive information you can really use! Here, we have tried to provide likely issues that can occur with the speedometer, along with troubleshooting tips for the same. Traditional speedometers used gears and wires to determine speed, while most modern vehicles use speed sensors for the same.

Remove the clamps present on the transmission and engine compartment that hold the cable in place. In the adapter, fix the square end of the new cable and also tighten the nut on the rotating shaft. Reattach the hose, air cleaner and electrical connector on to the sensor.Replacing speed sensors on rear wheel drive vehicles~ You will find the speed sensor on the driver's side behind the transmission. The Alternater quit, Transmission quit, Heater blower run all the time while the key is on and 3 gauges quit. Attach the electrical connector to it, and tighten it.Not every speedometer related problem needs a replacement job. Leave me a comment in the box below, I bet I can answer your question better than your mechanic. Troubleshooting speedometer problems mostly call for a replacement of the speed sensor or cable, depending upon the vehicle. In older cars a break in the cable that connects the transmission to the speedometer is the most common cause.
Cars produced after 1990 are usually equipped with speed sensors, which may crash and cease to transmit speed readings to the speedometer.

It is therefore important to take your car to a mechanic and run a full diagnostic test, before jumping to any conclusions and attempting self-repairs.
A more serious problem could be a faulty speedometer head, which needs expert diagnosis.The 'check engine' light came on after the speedometer stopped workingA problem that occurs with digital speed sensors is that they may malfunction and stop sending data to the car's computer. A 'check engine' light is a serious issue on its own and must be checked immediately.Bouncing or jerking of speedometerIn cases where the speedometer does not settle on any particular reading but keeps moving between speeds, it is almost always due to bad wiring, in case of a cable system, or a faulty speed sensor. In most cases, only the wiring needs to be changed, or the sensors re-calibrated, to repair the problem.Changes in the carSpeedometers are calibrated according to the radius and diameters of the factory-fitted tires of your car. These determinants can change, if you get custom tires which are larger, or if they are of different dimensions. The rate at which your tires cover ground changes and if the speedometer is not calibrated accordingly, it can show a faulty reading.Troubleshooting Speedometer ProblemsInstructions for removing speedometer cables~ Remove the engine cover and take a look at where the cabling enters the main body of the car.
You will see a thick black wire leading into the instrument cluster, this is the speedometer cable.

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24.04.2014 admin

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