Q: The vehicle keeps turning off while driving. Hummer H3
Hi, I'm not sure what year the Hummer H3 is. But it keeps turning off while driving. I'm not that experienced with working on cars. But, I'm studying on mechnics as a side activity. Is the issue an electrical, or mechanical problem. Or it's both?
My car has 14 miles.
My car has an automatic transmission.
Recommended Services
| Car is stalling Inspection | $94.99 - $114.99 | Get a Quote |
Hello - the first task is to determine what problem codes are being set here. This will guide diagnosis, and tell whether it’s a fuel supply issue (fuse, fuel pump relay, or fuel pump itself), or possibly an electrical sensor failing (crankshaft position sensor). I would recommend an engine stalling inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Fans keep running
Hello. I would suspect that the coolant temperature sensor is faulty. The coolant temperature sensor is used to monitor the temperature of the coolant. If it is bad it can trick the ECU into thinking it is running hot. The...
Car stuck in third gear
It does sound like a transmission problem. I would have to recommend taking your car to a European transmission specialist, such as one from YourMechanic. They may be able to clean out the valve body, replace the filter and fluid,...
Truck accelerated past 35 and started sputtering
Hello there, thank you for asking about your car. The first thing that comes to mind is a secondary ignition misfire (spark plugs, wires, etc.). An ignition misfire is most noticeable under load and can be felt as a shudder...
My car sputters when cold but idles smoothly after warmup - 2003 Chevrolet Express 3500
Hi there. Beyond the MAF sensor, in most cases, an engine that stumbles when it's cold is caused by one of three different components: clogged fuel injectors, a dirty throttle body, or an EGR valve (https://www.yourmechanic.com/services/exhaust-gas-recirculation-egr-valve-replacement) that is damaged or...
service traction light comes on and stays on when I'm driving
Hello there, the traction control system is an important safety feature of your 2007 Pontiac G5. When the traction control light is on this means there is a fault that prevents normal operation of your traction control system. The problem...
Whenever I start the engine, It stutters before starting can you please tell me whats wrong with it? 2002 Honda Civic
Hi there - if your car stutter-starts (https://www.yourmechanic.com/question/car-takes-multiple-tries-to-start-when-cold-fine-when-warm-new-battery-dlr-says-check-valve-on-fuel-pump-assembly-needs-entire-assembly-by-scott-f), but runs fine once it is running, you probably have a problem with the fuel system check valve. This valve maintains some fuel pressure in the system so that your car starts...
Windshield wiper go to fast and beat hard against the glass.
Hi there. The switch to the wiper system could have a fault causing the wiper arms to move too fast. If you are referring that the wipers are bouncing on the windshield when on the highest setting, then the springs...
Transmission or something else?
This is often a sign of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a...
My 2013 Mercedes benz c250 ac won't work, it blows hot air and the ac button light flashes red three times and then turns of
Hello. On this vehicle for it to be acting up like this it typically means that there is a programming issue with the HVAC unit. It is also possible that the system has a small leak if it has been...
Related articles
Hummer Certified Pre-Owned (CPO) Car Program
If If you are in the market for a used Hummer vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read...
How to Get Hummer Dealership Certified
Hummer car dealerships offer automotive technician jobs to mechanics who are Hummer certified through the Universal Technical Institute.
Understanding the Hummer Oil Life Monitor Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Hummer Oil Life Monitor (OLM) system indicates when and what service your car needs.
Browse other content
Maintenance
Cities