Q: Car starting sometimes, sometimes have to jump, speedometer and tach working but all other gauges not working 2003 GMC Yukon

Many vehicles are equipped with a belt drive system to run the accessories. Some vehicles have an adjustable belt tensioner which can be used to tighten the adjustment on a loose drive belt. In other cases an automatic tensioner is...

Doing some research, it looks like this is a fairly common problem, all signs point to the driveshaft being the cause. The driveshaft (https://www.yourmechanic.com/parts/driveshaft) connects the transmission, or transfer case, to the drive wheels. The noise is most likely caused...

Have the battery checked first to see if it is okay. If the problem continues, then the body control module may not be working properly and would need to be replaced and programmed with a new body control module. This...

When the No Bus message appears in your instrument cluster, its usually an indication that there is a problem with the powertrain control module or the wiring to it. This is also very likely the cause of your no start...

As far as jack stands (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-jack-stand) go, the pin locks are by far the safest if they have thick pins. Once you get the car up and you have that big thick metal rolling pin secured in there, nothing beats...

Many different items can cause the vehicle to have a no start condition (https://www.yourmechanic.com/article/how-to-fix-a-car-that-won-t-start-by-rocco-lovetere). Replacing the battery was a great place to start as that is usually the cause. Now that the battery is new and the vehicle still won't...

This is often times related to what is called an idle air control valve which controls the air/fuel mixture at idle speed. When this is not working properly, this can cause the car to run either too rich (too much...

This is likely a result of hitting the median. There are wheel speed sensors (https://www.yourmechanic.com/services/wheel-speed-sensor-replacement) on each of your wheels that monitor wheel speed. This is then relayed to the ECU which engages the slip indicator light and system. When...

Blue smoke coming from the exhaust generally means that the motor is burning the engine oil. This can happen for a couple of different reasons such as worn piston rings or leaking valve guide seals. When this happens, the engine...