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Questions and Answers

Chevy Truck Cutting Out And Jerking

Q. I have a 2001 Chevy truck with a 5.3 litre engine with 60,000 miles on it. I have been having trouble with it cutting out and jerking going down the highway. The fuel gauge goes back and forth at times when the truck is idling and the low fuel light comes on when I have just filled up. I had a test run on it and came back saying that the #7 cylinder misfire.

Chevy Truck Cutting Out And Jerking

I changed the plugs and the fuel filter and seem to have the same problem. I had another test run and this time came back saying fuel pump. I wanted to get another opinion because this does not happen all the time. Some days it does not happen at all.

Someone told me that it could be a sensor on the torque converter causing it to jerk, or it could be the fuel pump module. I have tried B-12 chemtool in the gas and changed out the gas cap. I do not want to spend $300.00 on a fuel pump if I do not have to.

Thank you for your help,

A. One problem may be a faulty fuel level sensor which GM is having a lot of problems with right now. The tank needs to be dropped to install it. As for the jerking, if you had mis-fire code, chances are that it's misfiring and should be addressed soon. It may be clogged injectors or a bad coil, ignition wire or spark plug in that cylinder.

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