Took 2000 alero to a shop, who said it was cam pos. sensor, but that didn't fix it and now they want to go for the fuel pump ! But shouldn't they change the filter first. When the car broke down on the hiway it sputtered 2 - 3 time's and died, I sat there for awhile and tried to start it and it started only for a few seconed's like it was starving for fuel. it did this for 2 - 3 time's and then no more. I told this to the shop but they said the cam sensor....turned out not to be that. I cant afford to keep changing thing's that aren't the problem, I stuck on a fixed income....HELP !....thank you.Dave
The Filter could be a cheap fix, and might work but probably not. Have someone check the fuel pressure, if its really low then you need to check to see if all of your injectors are "hitting". If they are then more than likely its your fuel pump !!
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The sensor is located on top of the fuel tank. However, it will never prevent your car from starting. The sensor is only for emissions. If you give me a better description of what your car is or isn't doing, I can try to help you. Does the engine turn over but not fire? Does the engine start, but stall after a second or two?
Usually the problem of hesitation is caused by a faulty throttle position sensor or low fuel pressure, and stalling is a dirty throttle body or faulty idle air control valve. Is the check engine light on ?
Very possible. I would check the sensor with a meter. I would say it most likely the crank shaft sensor. Some are located behind the pulley area and some are located at the back of the engine where the transmission meets the engine. Good Luck
you stated you changed the cam pos. sensor, meaning it must be a 7.3 or 6.0 turbo diesel. These engines are extremely sensitive to low fluid levels and failing sensors, first i will suggest for you to check and top off all fluids wich include antifreeze and oil above all. if those are within range, proceed to check the injector control pressure sensor located in the driver side of the engine towards the front.
Crank senser has 5 Volts ground and signal that flutters on ascope or waveform meter when turning over with the 5 volts on or running the cam senser is exctly the same just in a different spot and it looks a little different it works the same way as the crank. there both light switch failure on the quad 4 as theirs no half way they work or they dont and the car won't hit a lick if they are bad, no spark no injector no fuel pump wont even try or sound like its going to start fuel pressure is 40 lbs 30 running injector OHms are 1.5