2005 impala 3400 motor keep cutting off

Rebecca Hall

Asked by Oct 13, 2014 at 12:56 PM about the 2005 Chevrolet Impala

Question type: General

4 Answers


Does it have gas in the tank? Don't trust the gas gauge. I'm a HUGE GM fan but their gas gauge sending units are horrible in most of their vehicles.

1 out of 1 people think this is helpful.

TransAm77 is the sending unit for gauge connected to the pump on those cars? Or a separate unit? Float?


Most are conneted to the pump as one unit, however, NAPA has them separate on some applications. I replaced just the sending unit on my daughters Grand Prix. It was a 3800 not a 3400. So not sure if the sending units/pumps are the same for the different engines. Call your local NAPA store and ask.

1 out of 1 people think this is helpful.

by cutting off do you mean shuddering? like at 20-30 then 55-60 and feels like its down shifting and it slams around?

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