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Suburban

Older vehicles such as your Suburban tend to be a little easier to diagnose. If you suspect a lack of fuel to be your issue you may very well be correct. One trick you can try yourself to verify this...

A locked up AC compressor on your Chevy Suburban will make your truck un-drivable. This is due to the fact that the serpentine belt runs all of the accessories, including the AC. This is a straightforward repair that requires a...

Due to this being a possible safety concern you will want to have this issue looked at as soon as possible. GM has several TSB's out for various ABS and stability system issues. All of these TSB's do have specific...

This sounds like it could be a transmission control issue. Faults codes should be read out and any issues corrected. Generally, if there is a mechanical condition in a transmission the symptoms will be static and always present where an...

The transmission on these vehicles have many different possible problems and it sounds like you have an overrunning clutch bearing that is bad (https://www.yourmechanic.com/services/loud-noise-when-using-the-clutch-inspection), which is causing it to make noise after 40mph. The problem downshifting may also be due...

The starter on this vehicle requires a shim, so its possible that got left out when the starter was replaced. This could cause starter engagement problems and the metal on metal noise you're hearing (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection). Backfiring (https://www.yourmechanic.com/services/engine-is-backfiring-inspection), on the other...

You are correct to suspect the differential. Other parts of the undercarriage, such as the tires and wheel bearings (https://www.yourmechanic.com/services/wheel-bearings-replacement), usually result in a noise that persists during both acceleration and deceleration. Whining and howling noises are usually related to...

This is just a guess, but the problem could be with the gear selector or the transmission position switch (https://www.yourmechanic.com/services/transmission-position-sensor-switch-replacement). The starter relay will not close and the vehicle will not crank, unless the switch is in the neutral or...

The refueling problem is due to the fill pipe in the tank. The fill pipe has a smaller hose inside of the larger pipe which keeps you from overfilling the tank. If someone tried to siphon fuel from your vehicle...

Hello, electrical testing of the starter will need to be performed. I assume that you are referring to a short in the wiring between the ignition switch and the starter. With the concern reproducible, it will be easier to find...

There is not enough information to go on to know if the aftermarket seat warmer caused a computer short. If you plugged into the power port and if system was overloaded then it should have just blown a fuse and...

It is possible there is an issue in the electronic throttle control system. Faults need to be read out of the engine computer to determine if this is the case. Accelerator pedal position sensor, throttle position sensor, or throttle motor...

You either have a leaking injector (https://www.yourmechanic.com/services/fuel-injector-replacement) that is dripping fuel after you shut off the engine and causing a flooded engine and will cause the hard start and erratic running conditions. You could also have a fuel pressure regulator...

Hello. Most of the time, the symptoms you are describing are caused by the battery failing (https://www.yourmechanic.com/services/battery-replacement). If there is a bad connection at the battery or if the voltage in the battery is low, then this will occur. If...

There are numerous potential causes for the symptoms you are having. The first thing that comes to mind is a vacuum leak (unmetered air allowing the engine). Vacuum leaks are noticeable at idle and not under load while accelerating. There...

The normal operating range for most engines is between 195 degrees and 220 degrees Fahrenheit. If your engine is getting hotter than this, it's running too hot. Do not continue to drive it until it is properly repaired. Overheating can...

Thanks for writing in about your 1999 Chevrolet Suburban. There are DTCs (diagnostic trouble codes) that will indicate faults with TCC solenoid and brake pedal switch circuits. A scan tool can be used to observe brake pedal switch position while...

The most common problem with hard shifting from park is the brake light switch. The way it is set up you have to have your foot on the brake for the park switch release to engage. These brake light switched...