Question about Cars & Trucks
When the car sits overnight and is cold --below 45 deg. overnight--the dash lights don't come on until the car runs for about 20 min. Both turn-signal lights are on but not flashing with a black dash.
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Posted on Jan 02, 2017
SOURCE: 2002 Ford Taurus ses 24v DOHC
Sounds like when you ran the car out of gas the fuel pump was damaged, these in tank electric fuel pumps are very small and produce allot pressure and volume, the way they do this is to use the gas around them to cool down, when the pump comes out of fuel when the tank is below 1/4 full it starts to get hot very quickly, since your pump was well used (109000 miles) that was the last straw. When you replace the pump also replace the fuel filter.
I would also clean the throttle valve and idle speed control valve, this may be contributing to the low idle complaint, clear the system after the pump and cleaning by disconnecting the battery for a few moments.
Posted on Sep 09, 2008
the idle air control valve is responsible for engine idle.
this is a common failure on ford's. but I don't think yours is bad because it does idle high befor it dies.
you stated you had codes p0171 and p0174 these are lean codes for bank one and two, you said you found a vacuum leak and repaired it, the vacuum leak was mostly likely the cause of the lean codes, however the pcm has calibrated the fueling stategy for this lean mixture, what you need to do is erase the KAM "keep alive memory" this is done by unhooking the negative battery cable for 60 seconds, this is the only way to erase the KAM the $6000.00 machine I use wont even do it.
once the KAM is clean the computer will go into a relearn state and all operating values will be adjusted for the vehicles current condition, during this relearn session the vehicle may have some driveability issues (low or high idle, stalling, poor fuel economy) the relearn should complete within 10 minutes of idling and then 10 minutes of driving.
good luck and keep me updated
Posted on Jun 14, 2009
Does the engine crank but just not start? Or... are you cycling the ignition switch without trying to crank the engine? Based on the information you have given, I would first guess that the fuel pump may be going out. I say this because when you first turn the key on the pump primes the engine with pressurized fuel. If the pump is getting old, it may take a few power cycles to get it going. You can test this theory by having somebody listen near the rear of the car while you turn the key on for the first time. The fuel pump make a faint, yet distinctive high pitch noise that can be heard when you turn the key on. Try that first. Next thing you would try is checking the relays for proper function... starting with the fuel pump relay. Good luck.
Posted on Dec 09, 2009
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