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Crittersf1
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- Last seen
- Joined
- Jun 29, 2022
- Thunderbird Year
- 2005
2005 new fuel pump, no pressure. 12 volts to pump and can hear it run
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Define "new fuel pump" brand, where did you buy etc.2005 new fuel pump, no pressure. 12 volts to pump and can hear it run
If you have used two different fuel pumps and neither one works, I think for troubleshooting you can eliminate the fuel pump as the culperate.Have tried a Delphi and a Car Quest
What is the background of the car? Has it been in storage? Did you buy it recently not running? How long has it been driven by you, and what were the symptoms that caused it to stop running?My thoughts exactly. Scanner says around 3 pounds of pressure. 12 volts to the pump at the harness. Several years ago I received 4 or 5 faulty pumps for a truck I was working on. Finally got a good one and it's still running perfect. By no means a noobie at this, just getting frustrated
Looking at the data from scanner is a great starting point, but a defective fuel pressure switch could cause inaccurate fuel pressure readings from the scanner. You should connect a fuel pressure gauge at the fuel rail and read the actual fuel pressure reading.My thoughts exactly. Scanner says around 3 pounds of pressure. 12 volts to the pump at the harness. Several years ago I received 4 or 5 faulty pumps for a truck I was working on. Finally got a good one and it's still running perfect. By no means a noobie at this, just getting frustrated
I am going to assume you have changed the filter, it looks like you have tried 2 pumps with same results and not sure what the original pump was doing I would look at replacing the fuel pressure transducer. The pump running at 3 psi is controlled by the pcm based on the transducer signal, if you believe it's a defective pump get a ford one or a Lincoln ls, I only use Airtex pumps and have never had a problem.2005 new fuel pump, no pressure. 12 volts to pump and can hear it run