It's usually the Coolant Temperature Sensor.
You know you gotta give the engine some more gas when it's cold if you want it to start. The mechanism to do this on a carbureted engine ranges from the bulb on the side of a lawnmower carb (push five times to start) to a nifty little pump that's controlled by a thermostat-style bimetal strip.
On a fuel-injected engine, the computer just squirts some more gas in there when it thinks it needs to--it looks at the coolant temp, decides whether the engine is warm and goes from there. If the CTS goes bad, the FI control box thinks the engine's cold all the time...and your engine floods.
I made a little workaround in my car by wiring a switch into the fuel pump circuit. I turn the fuel pump off and start the engine. Once it catches, I've got about two seconds to turn the fuel pump back on. Once the fuel pump is back on, the car is in "running" mode, and it stays running. A $3 switch is cheaper than a $40 special-order CTS and works as well.AnswerThe fuel pressure regulator is bad and will no longer hold the pressure in the line. Or the fuel injectors are bad and are draining into the combustion chamber.
If you let go of the key too fast while starting, it can flood out. I seen it happen many times when I'm not driving it. Just a fraction of a second can mess it up. Car is a 2002 Bonneville V-6 SE If some one starts there car like this a lot, it will mees up the sensors sooner or later. Been there....Done that!
Do this to start a flooded engine: 1. Remove the fuel injector fuse (check your owner's manual-it's located in the fuse box under the hood or in the dash) 2. Turn your ignition. It'll rev for a few seconds and then stop. Wait a minute, then turn it again. (don't turn and hold longer than 10seconds, it'll drain the battery). This step apparently dries out the gas-flooded engine 3. Put the fuel injector fuse back 4. Turn on the ignition. The car should now start.
I had exactly the same problem with my 1996 Dodge Intrepid. The fuel pressure regulator was leaking which caused flooding of the engine if the engine were off for the right length of time. Too short and the engine did not have time to flood. Too long and the fuel evaporates and engine is no longer flooded. Just right and the engine is flooded and hard to start.
Here's the suggestion I tried on my flooded Mazda Protege 1998: 1. Remove the fuel injector fuse (check your owner's manual-it's located in the fuse box under the hood or in the dash) 2. Turn your ignition. It'll rev for a few seconds and then stop. Wait a minute, then turn it again. (don't turn and hold longer than 10seconds, it'll drain the battery). This step apparently dries out the gas-flooded engine 3. Put the fuel injector fuse back 4. Turn on the ignition. The car should now start.
in 1985 there was no fuel injection in your vehicle unless someone has changed the motor and put in a ecm your vehicle is carberated. fuel injection will start your car without touching the gas pedal if you have to pump the gas to start it on a cold day its a carb. fuel injection in chevy's did not start until 1987 if this answer makes sense to you please recommend me. thanks.
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