It may have lost oil pressure. Is the oil full? Insufficient oil is the most common but not the only cause of low oil pressure.
no
it is the catalyic converter. That is what happened to mine
With the engine running , and the vehicle stopped with your foot on the brake pedal shift the transmission to NEUTRAL and then rotate your selector switch to 4X4 low then put in drive / reverse ( to switch back from 4X4 low to 2 wheel drive , with the engine running , and the vehicle stopped with your foot on the brake pedal , shift to NEUTRAL and then rotate your selector switch to 2 wheel drive then put in drive / reverse )
Check the engine RPM. If the engine is running too fast when you put it into drive, it will cause the vehicle to jump.
Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.
Diagnosis: Engine Won't Start or RunCheck related link below
your fuel line has a leak when the truck is running cus that's when it is sucking fuel from the tank.check your lines when its running to find the leak.
The issue here sounds like it's the master cylinder failing. It is not retaining pressure when the engine is running. The reason they feel fine when the engine is not running is because the failing master cylinder is not getting power, and in essence is being bypassed.
Never disconnect a battery while an engine is running!
yes
If you are debating on whether or not you want to buy a Ford Ranger, then it is useful to know the engine size. The Ford Ranger is available, with a V6 engine.
The Ford Ranger engine number can be found on the engine identification plate. The engine identification plate can be found on the engine block.