03 Suburban shutdown when I hit numbs in the road

Asked by Chris Aug 24, 2019 at 06:29 PM about the 2003 Chevrolet Suburban 1500 RWD

Question type: Maintenance & Repair

When I hit bumps the truck shuts off for a second
and locks and unlocks sometimes shuts down
completely. Then dummy lights pop up and some
time it says reduced engine power and runs like its
misfiring checked all ground cables cleaned found
nothing lose can I cleaned contact points

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