Question about 2003 Chevrolet Suburban 1500

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Dies when under load or on long trips

When driving around town, no problem, but when pulling a light tent trailer on long trips, bogs down, dies. Turn it off, wait a minute or so, crank it back up and keep on going. Fuel filter has been changed.

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Fuel pump?? try unplugging the mas air flow sensor. its a 3 wire sensor in the air snorkle to the engine. They get dirty and cause it to run rough. Its very common

Posted on Jul 28, 2009

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