Question about 1997 Ford Thunderbird LX

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Why won't my ford thunderbird start?

My engine died without any warning and now it won't start. It turns over and you can hear the fuel pump,but it doesn't get gas to the injectors.If you spray carb-cleaner,it will start and run until the "gas" burns.We attached a reader but the on board computer wouldn't recognize it and it made the lights flash (all of them).Can you help me narrow down the problem?

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-Fuel pump relay
-fuel pressure regulator

Those would be my first two stabs. If you can go under the car and find the fuel filter. Disconnect the fuel line on the sending side and check if the fuel pump is actually delivering fuel. Be very careful as it could come out at a very high rate of speed. If it is make sure there are no blockages. Also your fuel pump may be working but not sending enough pressure to the fuel rail. Most cars fuel pressure regulators only open when there is sufficient pressure. Hope this helps!

Posted on May 18, 2014

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  • 28 Answers

Craig,

I'll have to wait until my wife comes home with the tbird. Do you know if the fuel filter is clean? Let me think about it and look at the wife's car and I'll get back to you.


Eric

Posted on May 17, 2014

  • Eric Jonkey May 18, 2014

    You might check in this order: fuel pump fuse, inertia switch(in trunk left side- under carpet), fuel pump, fuel pump relay. Reset inertia switch if no continuity between terminals. Could then be the PCM or pump circuit is defective.



    If you are not having enough fun yet, try checking the fuel pump output pressure.



    Good Luck!

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SOURCE: 2000 Ford Crown Victoria

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Posted on Nov 24, 2008

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SOURCE: Fuel Problem

fuel pressure regulator? This diverts excess pressure from the rail back to the tank. When they wear out they usually stay stuck open thus diverting all pressure back to the tank. Pressure tests do not reveal this as pressure is checked before the rail not in it. I do believe you have a bad fuel regulator. They are 75US ouch.

Posted on Dec 10, 2008

localwonder
  • 6784 Answers

SOURCE: fuel pump location and replacement

You are looking for the constant control relay module- ( CCRM ) see below. The pump will be located inside the fuel tank.Most of the time , its the pump and not the relay but, it wouldn't hurt to check the relay out. Teh relay is housed in the CCRM. Its located behind the engine coolant reservoir.


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Posted on Mar 20, 2009

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SOURCE: Engine wont stay running. Please help.

change the filter first. IF the pumpwas bad it wouldnt start at all. It could be going bad but the only way to really test it is to pull your gas tank and at that rate you may as well replace it.

you could have a clogged injector causing the lack of fuel as well. you can try injector cleaner, Lucas is my personal preference I use it at every fill-up. 4-6oz per tank of gas depending on your tank size.

Posted on Oct 15, 2009

  • 374 Answers

SOURCE: truck won't start, can't hear either fuel pump 1992 Ford F 150 5.

If you can't hear the fuel pump when you turn the key to the on position trying to build up fuel pressure, it is most likely either a voltage issue at the fuel pump or you need to replace the fuel pump. Have you checked your fuel filter? Try turning on the key without engaging the starter and see if you hear the whine of the fuel pump.

Good Luck

Posted on Dec 19, 2009

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How to check if i have no computer to scan engine for codes?


Well, it sounds like it is a problem in the fuel pump circuit. A lot of problems don't set a code, but if you know someone with a code reader or scanner, or if you get it running to drive it to Autozone or O'Reillys, Pep Boys, or most auto parts stores , you can get a free code scan service. Only takes a few seconds, good to know if your engine computer has detected anything.

So you put a new pump in. If it turns on, it should put enough fuel pressure up to the engine. Here's how to check if the pump is turning on as it should to start the car: turn the ignition key to on, not start, and listen for the fuel pump to turn on for 2 seconds. You should hear a hum or buzz from the tank for about 2 seconds. If you do hear it, and the fuel filter is not plugged up, the engine should have enough gas to start. If the filter is not plugged up, and the only way to start the engine is with starting fluid, then the problem may be in the fuel injector circuit.

Now if you do not hear the fuel pump turn on (2 seconds) with key in on, then the problem is in the fuel pump circuit. This can be difficult to diagnose, not feasible without a voltmeter and a wiring diagram of the car, so you would probably need experienced help. If you put the pump in yourself, you are a good gear head. buy a digital voltmeter and a repair manual and go to learning while you fix it your self.

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No. it wouldn't keep it from starting. If the engine cranks but won't start, probably gas or spark (ignition) related. Do you hear the fuel pump in the tank turn on for a couple of seconds, when turning key to on, not start? If you cannot hear the pump, better check if you are getting gas up to the engine. Maybe the fuel pump quit, or the pump circuit needs looked at. The pump should briefly turn on with key on to pressurize the fuel system-the fuel line and the fuel rail where the injectors are. Then the pump will turn off, and only come back on again when the engine is cranking, and stay on when running.
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And you know the fuel filter is good? Could be injector problem: just as a check, spray some starting fluid into the intake and see if engine runs a few seconds. If it does, it is a fuel problem. Check injector fuse, as a start. Check fuel pressure. Check injector circuit. If engine won't start with starting fluid, check if you are getting spark. Problem may be in the ignition system.

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You should hear the pump in the tank buzz on for a couple of seconds when you turn key to ON. It will come on and pressurize the lines, and then shut off if the computer doesn't get a cranking signal from the engine. Do you hear the hum or buzz from the gas tank? If so, pump is working alright. If no sound, then the pump has either failed, or the power to it has been interrupted.
If the pump is working, and you know the fuel filter is good, you should have fuel under pressure at the fuel rail on the engine. The only thing left for fuel to get into the cylinders, is for the injector circuit to work and pulse the injectors. Post back if you ned to test the injector circuit-very easy with a test light.
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Motor turns over won't start. Cleaned terminals, put in new battery, still won't start. Removed gas cap to vent air on hot day, still won't start. Lights all come on, all electrics appear to...


Your problem may be one of the following:
First check or just replace the fuel filter. Usually located under the car in front of the rear axle, drivers side.
Next, the fuel pump may be worn out. Usually they get loud or stop working (running).
Next, check the fuel pressure regulator. Usually located on the front fuel rail, drivers side.
Is the vacuum line attached? Not leaking or rotted?
Also, do you smell a strong fuel odor when it won't start? May be one or more stuck-open injectors, or the coil pack is bad.
Checking these in the order listed will more than likely fix your problem.
The clicking noise indicates the battery can no longer run the starter, which also means the fuel pump won't run either.

It could be a fuel issue. How old is the fuel filter? Can you hear the pump run for a few seconds when you turn the key on? Try turning the key to ON without trying to start engine three times waiting for the pump to stop running each time. Then try to start the engine. If it starts, Its a form of Vapor lock caused by the extreme heat we have had lately, and a weak fuel pump.

If none of this works, try a new fuel filter first. From there have someone check the fuel pressure regulator and then the pump. If you are in need of a new pump, take my word for it and spend the money to get one from a Dealer, and not from your favorite parts store. Most parts store parts are made in China and they are JUNK.

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