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.
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.