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Code: P0456 finally Resolved!........$2,500.00 later!!!!

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47K views 27 replies 20 participants last post by  Robs16Hellcat  
I have read a few cases where gas tanks had to be replaced. They are not cheap by any means glad you were only out $100.00.
 
Admin... Thank you for moving my thread to the proper forum. I was still in the process of doing my happy dance (definitely don't want to go there) when I originally posted. ;)
you are welcome
 
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The tech used a leak tester 'Miller 8404' to isolate the leak to the fuel tank area. He then used smoke injection and was able to see the smoke exiting (very slightly) next to one of the fuel pump lock rings. After replacing the fuel tank, he left my car outside overnight and again ran a cold test with the Miller 8404 and smoke injection the next morning. All tests passed. The tech's name is Gary and the only one that's ever worked on my car (personal friend). 25 years as a Chrysler master mechanic and it certainly shows!....He also did my timing chain and air-bag recalls.
Wonder why you had a code yet my leaking fuel pump did not have a code?
 
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Hey Corbin. Spoke with the tech that repaired mine this morning and explained your situation (no CEL).... When our cars do the self checks (ie: fuel system vacuum test), it's usually performed when the car is off sitting for awhile. The cars test pressure is approx: 1 to 2 psi. In your case, when the tank was full, the gasoline would ooze out the top of the fuel pump under volume pressure. Once the fuel level dropped no more gas smell. There was probably enough gasoline residue in the crack that sealed it enough to fool the cars vacuum test sequence. When I took my car in it had a 1/4 of a tank of gas, which he said was ideal for doing the pressure and smoke tests.
That make sense, thank you for checking it out.
 
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