u/bawkbawkslove

▲ 1 r/Hummer

Issue with reduced power and traction

2009 H3, about 140,000 miles. It did reduced power and barely drove and accelerated. Replaced the throttle body sensor and housing.

It’s driving so much better now, but twice now when it has rained it will throw messages about reduced power and loss of traction.

Both times we turned it off and let it sit a few minutes and it was fine. I was able to drive it with those messages and it drove ok…acceleration was slower and you could tell it wasn’t quite right, but it did drive.

I would love any insight to this. Maybe wiring? Both times it has happened when it rained, so I would imagine something to do with that?

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u/bawkbawkslove — 9 days ago