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#1
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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
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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
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"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
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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. |
#5
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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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