Revs to 3000 RPM and quits. when try again no spark
Was this a one time thing? Are you able to try at a later time (hour later? day later?) and it does it again? It sounds like a couple of things. When a cold engine starts, it will rev up to get to a safe operating temp, although I've never seen it go that high. It should rev down after a couple minutes to a normal idle speed (650-800 RPM). If it revs up and stays there too long (20-30 seconds), it may shut down because of several things: it cannot see engine speed because the crank sensor has failed, the temperature sensor has failed, or the cam sensor has failed.
The most likely cause is no fuel due to the fuel pump not running. Check the 20A fuse (#16) in the power distribution box located under the hood on the drivers side front. If it's good, check the fuel pump relay (#30) in the same box. Place your finger lightly on the relay and have someone just turn the ignition on (not start). The relay should click and you will feel it. If the fuse and relay are good, then check the the fuel pump shut-off switch (also called inertia switch).
Did you or someone else hit the curb really hard or run through a big pothole right before the car stopped working? If so, you may have tripped this switch. It is designed to kill the fuel pump in the event of an accident, but any significant bump can trip it, especially if it's worn. It takes a bit of force to trip it, but when it does, you will never be able to start the car again until this switch is reset. It is located in the trunk on the passenger side behind the paneling. If you look at it, there will be red button on top. It should be down inside the switch body (you can still see and touch it, though). However, even if it is down, the contacts get old and might prevent the fuel pump from coming on. Smack the switch with a wooden handle. It should cycle and the red button pops up. Now press this button down firmly. Turn the ignition ON and OFF about 3-4 times (do not attempt to start during these exercises). Each time, listen for a whining or whirring sound. Now try to start it. If this solves your problem, you need to replace the fuel pump cutoff switch (inertia switch). If you did not hear any sound and the car did not start, then you might be looking at bigger issues. Although sensors are simple little things, the work needed to replace them is crazy. But a failed sensor should throw a check engine light.
Keep us updated on what you find out.
Jul 22, 2014 |
2002 Ford Taurus