example: vehicle is in park. It started no problem, and no lights came on, and the factory temperature gauge is working now. If the circuit is open, the gas gauge will likely sit at EMPTY and never move. What make and year vehicle? I have a 2010 and the temp gauge stopped working and the. If it is, replacing it may temporarily restore your Envoy’s speedometer, but that doesn’t fix why the speedometer stopped working. In vehicles that use cables, the speedometer is physically coupled to the transmission via a cable. In less common circumstances, the electronic control unit (ECU) could also be malfunctioning. Keyless locks stopped working (worked right before I started it) 3. 2002 gmc yukon denali AWD speedometer not working Had new stepper motors put in cluster new speed sensor in transfer case new abs wheel speed sensors put in both fronts. At a bare minimum, you will probably have to remove some trim pieces and unscrew the cluster to pull it free. If you connect the sending unit wire to ground, the gauge should switch to read hot. The check gauges warning comes on because of the low oil pressure problem. no problems with transmission shifting . If everything still checks out, it’s time to move on to the ECU. Hello. speedometer shows 34 mph. If there is anything that you would like to add, please feel free to leave a comment below. When the gauges seem to move erratically, or they are pegged at the highest possible reading, the problem is usually a bad component like an instrument voltage regulator or a bad ground. Q: My fuel gauge is not working. If the fuses check out okay, then check for power at the instrument cluster. If it does turn, then the speedometer is bad. If it does, that’s a pretty good indication that the vehicle speed sensor is just fine. The diagnostic procedure for gauges and sensors differs from one application to another. The fix for that problem is to simply replace the speedometer cable, which involves unbolting it from the transmission, disconnecting it from the instrument cluster, and then sliding it through the firewall. This usually requires removing the instrument cluster, which can be quite difficult and time-consuming in some vehicles. What Causes a Car's Electrical System to Suddenly Stop Working? Her expertise includes social media, web development, and graphic design. The fuel sending unit is … The problem affects over 30 GM models, but in particular these vehicles have the highest incidence rate: 2003-2007 Chevrolet Trailblazer; 2005-2007 Buick Rainier; 2003-2007 GMC Envoy If the internal circuit is faulty, the gas gauge may only function in one section, such as between HALF and FULL or between EMPTY and HALF. - Brownsville, TX, USA. A vehicle speedometer is an instrument gauge designed to measure the engine RPM of a vehicle and display it. If your gauges don’t work, and your dash lights and indicators also fail to illuminate, that’s a clue that there may be a ground issue. This assumes that you have already checked the gauges fuse and determined that it’s in good working order. Add Complaint. When an instrument cluster isn’t properly grounded, you’ll typically find that the gauges and dash lights fail to work or only work intermittently. In some cases, you may find that the entire instrument cluster is bad. When a single gauge stops working, the problem is either in the gauge, the wiring, or the sending unit. If you are comfortable locating and removing sending units and sensors, you can diagnose this type of problem yourself. The speedometer on my 2004 gmc envoy does not work properly. it is also possible that one of the wires providing power to the gauge has shorted and is causing the gauge to not function. Coolant gauge not working. If none of the lights come on at all, check the fuses and wiring to the instrument cluster first. The 190 F is with the scangauge. In vehicles that have speed sensors, the easiest way to determine whether the sensor or gauge is bad requires the presence of a cruise control system. 46 47 48. Whether the gauge reads empty after a fill-up, or full while the car is actually running on fumes, there's one thing for certain: the darn thing is just wrong. In some cases, you may be able to remove the regulator, clean the connector terminals, and reinstall it. The most common causes of the gauges in a car not working can be broken down into three scenarios: None of the gauges work. -Instrument cluster. If your GMC Envoy’s speedometer is not working, it’s usually going to be caused by an issue with the VSS (vehicle speed sensor), or a bad ECU. When the cable breaks, the gauge may not move at all, or it may jerk a little intermittently. I have a 2004 gmc envoy 4 wheel . OK. 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. If you can locate where the speedometer cable connects to the transmission, diagnosing this problem is very easy. Report; Follow; Asked by Bensrudgirl60 Feb 10, 2019 at 01:34 PM about the 2005 GMC Envoy 4 Dr Denali 4WD SUV. Driving without a speedometer can be somewhat dangerous and off putting. Is the oil pressure always low, only at idle, high engine speeds or does it bounce around? It combines this data to send the speed reading to the instrument cluster. If it doesn’t, it’s time to take a look at it. When it doesn't work is makes my check engine light - Answered by a verified GMC Mechanic. You may be able to check the ground by looking up under the dash with a flashlight, but you will have to actually remove the instrument cluster in many cases. The VSS is usually not very expensive, and they are not that difficult to replace. The contact owns a 2006 GMC Envoy. On high engine speed i have an idle oil pressure and warning light. Early electronic instrument clusters had digital readouts much like an LCD alarm clock, while the modern equivalent often simulates analog gauges in a much more sophisticated way. Why Doesn't the 12v Socket in My Car Work? You can throw it on your dash until you get it fixed. Get the Latest Tech News Delivered Every Day, Lifewire uses cookies to provide you with a great user experience. Before sticking your head under the vehicle, check to see if the fuse going to the VSS is blow. The VSS is usually not very expensive, and they are not that difficult to replace. GMC Envoy 2002. The speedometer on a GMC Envoy SUV (sports utility vehicle) can develop problems, some of which may be easily diagnosed and resolved. Speedometer and tachometer work fine. -Faulty wiring. 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. These lights, and others like your check engine and ABS light, are designed to come on when you turn the ignition key to the on position, which is referred to as a bulb test. While there are a variety of reasons your GMC Envoy speedometer is not working, the most common 3 are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue. The ECU is programmed with your Canyon’s gear ratios and stock tire height. What If the Indicator and Dash Lights Don’t Work Either? Depending on how the gauge works, disconnecting the sensor, or connecting it to ground, may allow you to test the operation of the gauge. The technician diagnosed that the fuel sensor and the instrument cluster needed to be replaced. Question type: Maintenance & Repair. When all else fails, the instrument cluster itself may have to be replaced. Sometimes it won't go up at all, just sit on 0. You will need to trace the U-codes down on eat the time for this one. One of these solutions should solve your problem. 76,000 MILES The temperature gauge stops working at the same time AC stops working. Jeremy Laukkonen is tech writer and the creator of a popular blog and video game startup. even though I have had the temp gauge sensor replaced. Had the tranny rebuilt and the speedometer stopped working. Figuring Out Why Dash Gauges and Lights Don't Work, What to Do When Your Car Interior Lights Stop Working, Common Car Amp Problems (And How to Fix Them), Fixing a Car Radio That Stopped Working After the Battery Died, How to Fix a Car Horn That Won't Stop Honking, Why Your Car Won't Start Even Though the Lights Work. The sensor that connects to the speedometer of the cable breaks, the diagnostic procedure for and! Suddenly stop working, the gauge may not move at all, just sit on 0 check for.. 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