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AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 21869
Experience:  ASE MASTER TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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2001 ford explorer sport: new fuel pump and battery..starts great

Resolved Question:

2001 ford explorer sport - at times will not start - new fuel pump and battery last year - at times starts great - but then other times will not start - have to wait - take the key out completely and try again?
Submitted: 4 years ago.
Category: Ford
Expert:  AMEDEE replied 4 years ago.
Hello!

When the engine does not start, does the engine crank over and not start or does it not even crank over at all?
Customer: replied 4 years ago.

It seems like it won't start for about two or three tries and then as I mentioned if you wait and then take the key out and try again it will start - mechanic cannot find anything wrong - is there a modulator in the starter/ignition (had a similar problem with an 89 Bronco and that was the reason) but mechanic says the 2001 Explorer doesn't have this

Expert:  AMEDEE replied 4 years ago.
When the engine does not start, does the engine crank over and not start or does it not even crank over at all?
Customer: replied 4 years ago.
I answered this above.....
Expert:  AMEDEE replied 4 years ago.
Do you hear the starter engagde when you are trying to start it?
Customer: replied 4 years ago.
yes
Expert:  AMEDEE replied 4 years ago.
When it does not start, does the check engine light come on with the key in the on position?

Does it go off while cranking?
Customer: replied 4 years ago.
I'm not sure - if it does that what does that mean?
Expert:  AMEDEE replied 4 years ago.
You could have a bad cam or crank sensor. TO check them all you have to do is turn the key on and crank. The check engine light should normally come on when the key is turned to the on position, then go off when cranking. The computer turns off the check engine light when it recognizes the crank signal. So if u have a bad crank sensor, the computer will never turn off the check engine light when cranking! If thats the case its time to replace the sensor! Just be sure the wiring is in good shape.
Customer: replied 4 years ago.

I will have to check that out tomorrow - if that isn't the case then what else could it be?

 

Expert:  AMEDEE replied 4 years ago.
Then, you could have a fuel delivery problem. I would recommend to start by checking fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump! You can get a fuel pressure gage at a local auto parts store for cheap.


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AMEDEE

AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 21869
Experience: ASE MASTER TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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