Hi guys,
The engine in my 2003 Mitsubishi Diamante (6G74) has started randomly turning off.
The occurrence rate has increase in the past week.
It basically turns off as if I took the key out.
It turns straight back on when I restart it.
It does so while driving at times, where it completely loses all power and revs drop, but then turns back on and keeps going (i.e., since it is moving, it essentially jump starts itself). This is felt as a hiccup so whatever turns it off only lasts for half a second or so.
It seems to do it more frequently when idling at the lights and then taking off, though it has happened when cruising in 5th gear as well, and while accelerating too.
Whatever it is, it affects all cylinders at once.
Plugs, leads, filters etc have all been replaced recently.
What could this be?
What should I be checking?
There is no backfiring, would that suggest it is a fuel issue?
The on/off is very sharp and distinct, would this suggest an ignition issue since it is very sudden, both in turning of and turning back on (if at cruise speed)?
The engine in my 2003 Mitsubishi Diamante (6G74) has started randomly turning off.
The occurrence rate has increase in the past week.
It basically turns off as if I took the key out.
It turns straight back on when I restart it.
It does so while driving at times, where it completely loses all power and revs drop, but then turns back on and keeps going (i.e., since it is moving, it essentially jump starts itself). This is felt as a hiccup so whatever turns it off only lasts for half a second or so.
It seems to do it more frequently when idling at the lights and then taking off, though it has happened when cruising in 5th gear as well, and while accelerating too.
Whatever it is, it affects all cylinders at once.
Plugs, leads, filters etc have all been replaced recently.
What could this be?
What should I be checking?
There is no backfiring, would that suggest it is a fuel issue?
The on/off is very sharp and distinct, would this suggest an ignition issue since it is very sudden, both in turning of and turning back on (if at cruise speed)?