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2001 Crown Victoria Fuel Pump



 
 
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  #1  
Old August 25th 06, 07:34 PM posted to rec.autos.tech
John P.[_1_]
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Posts: 9
Default 2001 Crown Victoria Fuel Pump

My 2001 Crown Victoria has hard morning starts(((hard start= cranking
for 10 seconds..letting go of the key and then engine starts, very hi
RPM in the "ON" postition)), but it starts fine for the rest of the
day. What could be the problem?! Already replaced, fuel filter, Air
idle control valve but no change. Some say it might be the Fuel pump,
or ignition switch? Also, Is the fuel pump located inside the gas tank
or outside? Is it somthing i can do myself? Thanks for the expert
advice!
John.

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  #2  
Old August 26th 06, 07:32 AM posted to rec.autos.tech
Ashton Crusher
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Posts: 324
Default 2001 Crown Victoria Fuel Pump

On 25 Aug 2006 11:34:42 -0700, "John P." > wrote:

>My 2001 Crown Victoria has hard morning starts(((hard start= cranking
>for 10 seconds..letting go of the key and then engine starts, very hi
>RPM in the "ON" postition)), but it starts fine for the rest of the
>day. What could be the problem?! Already replaced, fuel filter, Air
>idle control valve but no change. Some say it might be the Fuel pump,
>or ignition switch? Also, Is the fuel pump located inside the gas tank
>or outside? Is it somthing i can do myself? Thanks for the expert
>advice!
>John.


It might be the fuel pump or it could be a check valve at the pump,
either way you'd have to pull the tank. When you turn the key to on,
but not to start, do you hear the fuel pump run for a couple seconds?
Usually they do. If you hear it run for a couple seconds you can turn
it to on, to off, to on, to off, several times before trying to start
it. If it starts right up after doing that there is a good chance
it's a problem with either the pump or related parts like the check
valve. However, it's also possible the injectors are leaking and
letting the fuel dribble out into the engine overnight and then it
takes some time for the fuel pump to refill the fuel rail making it
hard to start first time each day. You'd need a fuel pressure gauge
to check that to see if it's bleeding off pressure when it sits.
  #3  
Old August 26th 06, 08:37 PM posted to rec.autos.tech
Rodan
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Posts: 261
Default 2001 Crown Victoria Fuel Pump

"John P."wrote:

My car has hard morning starts (cranking for 10 seconds..letting go
of the key and then engine starts, very hi RPM in the "ON" postition).
It starts fine for the rest of the day. Already replaced, fuel filter,
IAC valve but no change. Some say it might be the Fuel pump or
ignition switch. Also, Is the fuel pump located inside the gas tank
or outside? Is it something i can do myself? What could be the
problem?
__________________________________________________ ____

It could be a bad ignition switch making intermittent contact
to the ignition system in the start position.

It could be corroded battery cables, a poor battery ground, or a
failing battery. The cranking current draws the ignition voltage
so low it can't fire the coil. When the key is released from the
start position to the run position the engine is still turning from
the starter, the voltage to the ignition rises and the car starts,
running fast to clean out the fuel accumulated during cranking.
The hard starting current heals the bad connection but overnight
corrosion or battery discharge brings back the same conditions.

When cars had coil resistors, a broken resistor bypass wire could
cause this condition.

Good luck.

Rodan.
__________________________________________________ ____




  #4  
Old August 26th 06, 08:53 PM posted to rec.autos.tech
Mike Romain
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Posts: 3,758
Default 2001 Crown Victoria Fuel Pump

When Jeeps have this exact symptom, it is normally a dirty connection on
the TPS or throttle position sensor. Unplugging it and giving the
contacts a clean with a spray contact cleaner fixes them up for a couple
years, then they need it again. Real contact cleaner is the best, but
WD40 will work in a pinch.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
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"John P." wrote:
>
> My 2001 Crown Victoria has hard morning starts(((hard start= cranking
> for 10 seconds..letting go of the key and then engine starts, very hi
> RPM in the "ON" postition)), but it starts fine for the rest of the
> day. What could be the problem?! Already replaced, fuel filter, Air
> idle control valve but no change. Some say it might be the Fuel pump,
> or ignition switch? Also, Is the fuel pump located inside the gas tank
> or outside? Is it somthing i can do myself? Thanks for the expert
> advice!
> John.

  #5  
Old August 28th 06, 03:42 AM posted to rec.autos.tech
Bob[_4_]
external usenet poster
 
Posts: 64
Default 2001 Crown Victoria Fuel Pump

It's either that or a bad ground strap eh Mike?

"Mike Romain" > wrote in message
...
> When Jeeps have this exact symptom, it is normally a dirty connection on
> the TPS or throttle position sensor. Unplugging it and giving the
> contacts a clean with a spray contact cleaner fixes them up for a couple
> years, then they need it again. Real contact cleaner is the best, but
> WD40 will work in a pinch.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "John P." wrote:
>>
>> My 2001 Crown Victoria has hard morning starts(((hard start= cranking
>> for 10 seconds..letting go of the key and then engine starts, very hi
>> RPM in the "ON" postition)), but it starts fine for the rest of the
>> day. What could be the problem?! Already replaced, fuel filter, Air
>> idle control valve but no change. Some say it might be the Fuel pump,
>> or ignition switch? Also, Is the fuel pump located inside the gas tank
>> or outside? Is it somthing i can do myself? Thanks for the expert
>> advice!
>> John.



 




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