Question about 1997 Ford Thunderbird LX
My engine turned off while i was driving,without warning.It turns over and you can hear the fuel pump working.If you spray it with "carb-cleaner",it will start and run until the fumes are gone.We tried to hook-up a "reader",but the on board cumputer wouldn't recognize it.It also caused the lights to flash(all of them).Can you help me narrow down my problem?
The first thing I would do is check the fuel pressure. To do this you need a fuel pressure gauge and a few simple tools connect the gauge in line and try to start the car. (Watch for fuel spray when you are disconnecting the fuel line) I don't know the specs for the fuel pressure off hand but 200-300 kpa should have it running. That will confirm the pump is working and working well. If the car runs on carby cleaner it will have spark so it has to be lack of fuel. The other thing to check is do you have injection pulse but it is not common to lose pulse.
Posted on May 31, 2014
Check your fuel filter, then the fuel regulator
Posted on May 25, 2014
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Posted on Jan 02, 2017
Replace the TFI module. Ford back in 1986 thur 1993 had problems like the one you wrote about. TFI module gets hot and shuts car or truck off then when it cools sometmies starts and sometimes not.
Posted on Jun 15, 2009
SOURCE: 1997 thunderbird 4.6 v8 when
these functions (cooling fan and fuel pump) are controlled through the powertrain control module, this may be the problem, need to ask a few questions first about this car
1. has the electronic control system been tested for fault codes? if not have that done, the root cause may be there in a possible trouble code stored in memory, you will need the active engine running test and the key on engine off test done, any ford dealer can run these tests.
2. has the battery and starter been tested, the extra load of the cooling fan and fuel pump may be just enough to lower the battery voltage to the point the engine is hard to start, a defective starter can also create excess draw on the electrical system and create a hard start condition, I have been a Ford dealer technician for 30 years and this is how I would handle this job in the shop, a full diagnostic at a ford dealer is how this will get fixed, not any hit and miss guess work. Have the tests run, it is money well spent.
Posted on Oct 15, 2009
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.
Posted on Dec 19, 2009
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