Need to hook upto a scanner. Check for codes.
bad sensor
bad cooling sensor or bad connection at cooling sensor.
how do you k now the cam sensor is bad
The coil pack could be bad. More commonly the crankshaft sensor could be bad. When this sensor is bad the system cant tell where the cam location is and will no know when to send fire to the spark plugs.
how do i know if the o2 sensor is bad. The check engine light would illuminate and the code(s) set would steer you to the faulty O2 sensor.
A bad thermostat can cause an overheat. A bad temp sensor can show an overheat when the temperature is normal.
When a crankshaft sensor is bad the engine will not run. The sensor is not usually intermittent, it is either good or bad.
most likely a bad sensor or someone wired it to do that. on a auto its called a park/neutral sensor on a manual its called a neutral sensor. -mechanic 7+ years
could be a # of things bad plugs, blown fuse, bad coil pack, or even a bad sensor.
i think it causes bad/rough idle
bad module, bad vss, bad wheel speed sensor, bad wiring
Check the crankshaft sensor. If the sensor on the Grand Voyager is bad then there wont be any spark.