Why is my speedometer not working on my Chevy Trailblazer?

Your Chevrolet’s speedometer gives important readings about your current speed. If you are experiencing problems with yours, don’t fret — these issues are common and easily fixed (usually). In fact, TrailBlazer speedometer problems are one of the most common topics discussed on popular Chevy online forums.

What to do if your speedometer doesn’t work?

Replacing the bad speed sensor will solve this issue. Also, if speedometer in your Chevy stops working or reads erratically, test the cruise control out. The cruise control uses the same sensors as your speedometer. If the cruise is working and the check engine light is on, the problem is likely with the speedometer itself.

How is the speedometer connected to the dash?

All other dash gauges are connected to sensors or sending units via wires, while your speedometer may utilize either a speed sensor or a physical cable. In vehicles that use cables, the speedometer is physically coupled to the transmission via a cable. The cable is usually square on both ends or square on one end and slotted on the other.

Why is the speed sensor on my car not working?

In less common circumstances, the electronic control unit (ECU) could also be malfunctioning. If you take your car to a qualified technician, they will be able to connect to the ECU to read trouble codes and other data. Using specialized testing equipment, they will also be able to actually test the speed sensor itself.

Why is my abs light not working on my Chevy?

The fault is usually due to broken solder joints on the circuit board. At this time I did not need to pull the EBCM and repair the solder. Loading…

Why do I get false ABS at low speeds?

The rust forces the sensor away from the reluctor and it cannot properly detect proper ABS braking conditions, so you get false ABS activates at low speeds. The process or rust moving the sensor is called “rust jacking,” since the force of the rust moves the sensor upwards. To test the sensor, connect a digital voltmeter to the sensor connector.

How can I tell if my ABS system is working?

The ABS Light is on. The most common sign of an issue with the ABS system is the ABS Light coming on. The ABS Light will show an amber color, and is the equivalent of a Check Engine Light, except it is only to diagnose problems with the ABS system. Older vehicles equipped with earlier ABS systems may not have an ABS Light,…

The fault is usually due to broken solder joints on the circuit board. At this time I did not need to pull the EBCM and repair the solder. Loading…

What should you do if your abs light is on?

Just because your ABS light is on, that doesn’t mean you can’t drive your vehicle. In fact, you will still be able to step on the brake pedal and slow the vehicle down. However, you cannot perform any kind of emergency stop by slamming the brake pedal quickly.

What to do if your ABS sensor is distorted?

Check the sensor for flatness in multiple (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor. Apply (spray) two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) to the complete sensor mounting surface on the bearing hub. Allow to dry for 3-5 minutes between coats.

Why is my Radio not working on my 2001 Silverado?

I had the exact same issue with my 2001 Silverado 2500HD. Driving down the highway one night and my radio shuts off and instrument cluster malfunctions.

Is there a check engine light on a Chevy Malibu?

The only functional indication i have is check engine light and anti theft system light other then that all the IPC is blank like its not getting any power.

What are the symptoms of a bad speedometer sensor?

Symptoms of a Bad or Failing Speedometer Sensor. Cost of Replacing a Bad or Failing Speedometer Sensor. Common signs include the speedometer not working, cruise control not engaging, Check Engine Light coming on, and loss of power.

What to do if your transmission speed sensor is bad?

Once the problem has been fixed, the mechanic will reset the error codes. If the problem rests with the speed sensors, depending on your particular transmission, the professional ASE certified mechanics may be able to replace the sensor.

What happens when the output shaft speed sensor falls out?

The other sensor is the output shaft speed (OSS) sensor. If either of these two sensors falls out of alignment or experiences electrical issues, it impacts the operation of the entire transmission.

Where is the speedometer located on a car?

Where is the speedometer sensor located? The speedometer sensor is located in the transmission of your vehicle and is designed to register the driveshaft’s rotational speed. The sensor delivers this information through the speedometer cable and to the vehicle’s computer, which converts electrical pulses into a numerical speed.

When did the General Motors Trailblazer recall happen?

At the end of 2008, a class action suit brought before the U.S.District Court in Seattle resulted in a settlement for owners and lessees of certain General Motors vehicles manufactured between 2003 and 2005.

Why is my Chevy Blazer not doing 4WD?

While there are other possible reasons why a 4WD system would not engage such as the transfer case encoder motor and computer, the possible reasons I’ve pointed out in this video are quite common and easiest to diagnose. The 4wd vacuum actuator is one of the easiest ways to determine where the problem is on your vehicle.

Where is the speed sensor on a 2wd car?

If you have a 2WD model, it is located on the transmission tailshaft on the driver’s side. On 4WD models, the sensor is mounted on the transfer case tailshaft (driver’s side as well. Unplug the VSS electrical connector. Unscrew the VSS mounting bolt using a wrench or ratchet and socket. Pull the speed sensor off the transmission or transfer case.

How to repair GM instrument cluster you speedometer?

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Why did my voltage meter quit working on my Chev Silverado?

20″ of a cooper braided ground wire on the drivers rear side came out on a chunk of snow that I kicked off. My voltage meter quit working today … read more

Why does my gauge quit working on my Chevy Silverado?

20″ of a cooper braided ground wire on the drivers rear side came out on a chunk of snow that I kicked off. My voltage meter quit working today … read more Auto repair pro, 30 years ex… Hi, I have a 1999 chevy silverado with gauge problems. I see it’s a common problem, but my problem may be the result of a parasitic draw, … read more

What is the name of the transmission speed sensor?

There are generally two speed sensors that work in conjunction to provide accurate transmission data to the vehicle’s powertrain control module. The first is known as the input shaft speed (ISS) sensor. As described, this sensor is used to monitor the speed of the transmission’s input shaft. The other sensor is the output shaft speed (OSS) sensor.

What happens when a cruise control sensor fails?

When the sensors fail to deliver accurate data to the onboard computer on your car, truck, or SUV, the powertrain control module (PCM) will send an error code to the vehicle’s ECU. As a safety precaution, the ECU will shut down the cruise control and render it inactive.

What are the symptoms of a bad transmission speed sensor?

Symptoms of a Bad or Failing Transmission Speed Sensor. 1 1. Harsh or Improper Shifting. Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears 2 2. Cruise Control Does Not Work. 3 3. Check Engine Light Comes On.

Where are the fuses on a 1993 GM 4.3L?

In the table below you’ll find the fuse location and description of the fuses of the fuse box on 1993 4.3L, 5.0L, 5.7L TBI equipped 4.3L, 5.0L, and 5.7L pickups. IMPORTANT: The fuse box illustration and fuse descriptions cover the vehicles in the ‘Applies To:’ box on the right column.

How are speedometers different from the other gauges?

While all gauges can be either analog or digital, speedometers are unique in that they can have either mechanical or electrical inputs. All other dash gauges are connected to sensors or sending units via wires, while your speedometer may utilize either a speed sensor or a physical cable.

What does it mean when your speedometer is not working?

If the oil pressure, coolant, charge, or gas gauge doesn’t work or works erratically, the problem is in the gauge, wiring, or sender. Speedometers are unique in that some of them use physical cables instead of sensors, so a speedometer not working can also indicate a broken cable or stripped gear.

How to repair a stuck or dead GM tachometer?

In this tutorial you’ll learn how to repair a sticky, stuck, jumpy or dead GM speedometer, tachometer, fuel gauge, oil pressure gauge, volt meter, water temperature gauge and transmission temperature gauge.

Why does my Chevy Tahoe keep stalling out?

If your Chevy Tahoe’s engine timing is off, it’s going to stall out, misfire, and altogether not run properly. Here are some of the more common causes of an engine timing problem:

Where is the throttle position sensor on a Chevy Tahoe?

Your Chevy Tahoe uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.

Can a Turbo 350 tailshaft use a speedometer sleeve?

Turbo 350 tailshaft housings can utilize one of two speedometer sleeves: early Chevys (left) have a small ⅞-inch-od driven-gear hole and use the same sleeve as many GM manual transmissions. BOP housings (right) take larger gears and 2-inch sleeves. Extension housings with their corresponding drive and driven gears can be swapped.

Why does the fuel gauge on my Chevy Trailblazer stop working?

Has the fuel gauge in your 2003-2006 Chevy Trailblazer stopped giving you accurate readings? Does it tell you you’ve got half a tank one minute, a quarter tank the next, then a full tank half an hour later? Well, you’re not the only one.

Why does my odometer stop working on my Chevy?

If your odometer stops working in your Chevrolet, it may be due to a couple reasons. Depending upon the year and model of your vehicle, the fix may be something you can do or something you may need to take to your dealership for repair. If neither of these indicators is working, then the problem may lie within the speed sensor on your vehicle.

Why is it when driving the RPM gauge drops or jumps up?

Somewhere the fuel drop then suddenly rpm decrease better check the complete fuel system from tank to injectors also check the rpm sensor . Was this answer helpful? This could possibly be your output speed sensor, related to the transmission.

What causes hesitation and surging on Blazer 4.3L?

Fix Hesitation and surging on Blazer 4.3L If you have Hesitation and surging on Blazer 4.3L and it’s driving like a dog—poor acceleration, hesitation, or a surge and you suspect a fuel problem, you may be partially right.

How can I tell if my speedometer sensor is bad?

On most cars sold today, this will be indicated by the cruise control light being illuminated on the dashboard – even if it’s not engaged. If you experience this problem, it’s possible that the speedometer sensor needs to be replaced. 3. Check Engine Light comes on

Why is it important to repair your speedometer?

Being proactive about repairing your speedometer issue can improve safety, not only for you, but others on the road. It can also reduce the potential of getting two citations; one for speeding and another for a damaged speedometer. 2. Cruise control does not work

Why is the speedometer on my GMC Sierra not working?

This 2005 GMC Sierra came in with the complaint that the speedometer does not work. In fact it was stuck at 55 mph when it was sitting in the shop key on engine off. This repair can apply to any one of up to seven gauges on 2003 through 2007 Classic series Cadillac, Chevrolet and GMC full sized trucks and SUV’s.

Can a bad speedometer sensor cause you to slow down?

A malfunctioning speedometer sensor can also cause a speedometer to act erratically, fluctuating the reading from one speed to another; even though in reality you’re not speeding up or slowing down.

When did the GMC Sierra have the most problems?

The model years with the most problems reported were 2004 and 2007, with more than 60 complaints each year, followed by 2002, 2003, 2005, and 2010, with more than 40 each year. Of the 112 problems, five different complaints have been reported 90 or more times.

Is there a recall on the GM Silverado speedometer?

GM Instrument Cluster Recall / Settlement Information and Vehicle Coverage The GM Instrument Cluster Settlement was a 2008 class action settlement awarded to owners of certain General Motors vehicles with allegedly defective speedometers.

Why is my speedometer not working on my Chevy Trailblazer?