Q: I have a 1997 GMC Suburban and when I drive it loses power or stalls

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I have a 1997 GMC Suburban when I had gotten off the lot it worked okay for a little bit then on a sudden starts to lose power or stalls when we are driving we checked everything and can find anything we changed fuel sensors sensors everything

My car has 1715021 miles.
My car has an automatic transmission.

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