we have a Ford Escort LX and it wont start without the gas throttle half way then it starts but is very rough but wont idle by itself
neutral safety switch is messed up
This is something that is almost impossible. If this is happening on your Ford Escort you have some serious wiring problems.
Throttle body issue.
Probably the Clutch Master Cylinder or the slave cylinder.
The battery, cables and starter may be bad.
The red button turns on the fuel pump when it is pushed on a Ford Escort.
The ETC system in the GMC Envoy is the Electronic Throttle Control. The ETC acts as a throttle pressure gauge when the gas pedal is pushed. It takes the place of the throttle cable. This part is located right next to the carburetor.
A throttle positioning sensor reads your throttle body to see how much your pressing the gas basicly. So if its bad the engine runs up and down not knowing exactly how much peddle is being pushed.
it might be your throttle
pull apart the carborator and clean it of dirt and debris pull apart the carborator and clean it of dirt and debris
pushed in so that the exaust is off, on will force hot air from out side in.
put it in neutral then try to start it.