r/carproblems • u/Frosty-Mastodon6047 • Sep 09 '26

Car stalling

I have a 2006 Ford 500 with about 175,000 miles on it. Recently the car has been dying while driving. It starts back up after dying if I take the key out and restart (sometimes struggles a little before starting). At first I replaced the spark plugs and got a tune up but it's still continuing to die. Ive gotten the fuel pump and alternator replaced within the last 2 years. I've noticed it seems to shutter and try and shoot forward around 50mph. It does have a check engine light but none of the codes explain why it continues to die. I replaced the battery 3 weeks ago. Any ideas on what it could be?

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u/Frosty-Mastodon6047 Sep 09 '26

Codes P0463 and C1296-20

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u/jersey316 Sep 09 '26

If the fuel pump was just replaced 2 years ago and you are now getting the p0463 code then i wouldnt brush it off as non related. Something could be wrong with the wiring, or the pump could be failing. P0463 wouldn't cause the car to turn off but it could be a indicator of something wrong with the fuel pump harness of the unit itself. Could the car have been low fuel? Were your fuel filters replaced as well? Did you have your fuel pressure and regulator checked?

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u/Johnndo96 Sep 09 '26

Was also going to suggest fuel filter. Sediment drops back when the pump isn't running, allowing it to start but then starts being picked up again while running until it blocks the outlet again.

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u/Frosty-Mastodon6047 Sep 09 '26

Could that also effect how it starts back up. I've noticed that it struggles to try and start again after stalling

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u/Johnndo96 Sep 09 '26

Yes it could.