After my 2001 taurus warms up and i shut it off it wont start for 15 to 30 minuts

[fatattacktrex]

When my car warms up and i shut it off it wont start for 15 to 30 minuts.I took it to the ford garage and they said it needed the keys reprogramed so i said ok do it they all so replced the barm sensor and replaced aa gaskets.this all cost me over $1000.00 it it still does the same thing. plz help me

[shorod]

When it won't start, does the starter turn the engine over it just refuses to start? Do you have a means of checking the fuel pressure when it won't start? Does the "Theft" or "Security" indicator in the instrument cluster flash when it won't start? Does your car have an aftermarket security system installed?

-Rod

[fatattacktrex]

Originally Posted by shorod

When it won't start, does the starter turn the engine over it just refuses to start? Do you have a means of checking the fuel pressure when it won't start? Does the "Theft" or "Security" indicator in the instrument cluster flash when it won't start? Does your car have an aftermarket security system installed?

-Rod

Yes it turnes over and some times if i feather the gas pedal it will start sooner. It fires when it turnes over. it does it more when it gets warmer out side

[fatattacktrex]

no the theft lite dos not flash.NO it the factory anti theft system.When it started doing this problem.I put it in the shop and the code said it was the anti theft and only the Ford dealer can work on it.

[shorod]

Originally Posted by fatattacktrex

I put it in the shop and the code said it was the anti theft and only the Ford dealer can work on it.

That's true to a certain extent, it depends on the code. Sometimes the code just indicates that the power was removed from the PATS module which could be caused by something as simple as a weak battery that allows the system voltage to drop below some threshhold during a start attempt.

Your symptoms have me leaning more towards a fuel pressure issue, maybe a restricted fuel filter or more likely a weak fuel pump. Especially since it seems to act up more when warm.

-Rod

[fatattacktrex]

Originally Posted by shorod

That's true to a certain extent, it depends on the code. Sometimes the code just indicates that the power was removed from the PATS module which could be caused by something as simple as a weak battery that allows the system voltage to drop below some threshhold during a start attempt.

Your symptoms have me leaning more towards a fuel pressure issue, maybe a restricted fuel filter or more likely a weak fuel pump. Especially since it seems to act up more when warm.

-Rod

Thank you very much this is what i have been thinking since the problem started ill get a new filter and see if that helps it looks like the origainal filter it came out with in 2001 and if not then ill check the fuel pump. If i send it to the ford garage again it will endup costing me more then i payed for the car when it was new.

[danielsatur]

The Cold start is good, and the engine runs good, until you do a hot start!
The ECU needs to forulate the Air/fuel mix for starting. The symptoms of a cold hard start is usually a bad, or dirty MAF/IACT sensor. I guess a bad MAF/IACT sensor could cause a hard Hot start condition too.

Notes-
If the PAT security system control was bad, you wouldn't get igniton to your plugs.
I have seen a bad control module get hot & loose control of the system to fail start.
The fuel pump seemed tobe running fine, there should still be enough fuel pressure to start a fire during the hot start.

[plymouthsrock]

I agree with Rod, you should check fuel pressure. The pressure should not drop off more than 1psi/minute after shutting the engine off. If it does, you may have an internal leak, like an injector, pressure regulator, or the pump itself. An external leak would be more obvious. The drop in fuel pressure in a warm environment would allow the fuel to vaporize (called "vapor lock" in the bad old days).