Chucking chev Impala 06 LT 3500

ATOPPING1978

MEMBER
2006 CHEVROLET IMPALA
145,000 MILES

2006 chev impala lt-145k have already replaced spark plugs, coil pack, oil change, crank sensor and the car is still chucking when driving or idling. No codes on the gm reader after fixing the sensor. Car still chucking and quitting when revved in park. Can drive down the road and there is almost no gas pressure then bang, it takes off but keeps chucking. The engine feels like its going to quit and sometimes it does. Please help me, Amy

Saturday, August 25th, 2012 AT 6:24 PM

3 Replies

DRCRANKNWRENCH

MECHANIC
3,380 POSTS

You might have a clog in the fuel filter which is in the fuel tank. It is unlikely. If your car has a secondary fuel filter, which will be near the fuel tank or in the engine bay, you should replace it as it may be clogged.
Otherwise you may want to think about replacing the fuel pump. If you have tested the fuel pressure, and you should if you have not, and it is low at any point. There is either a clog in the line or the pump is bad.

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Saturday, August 25th, 2012 AT 6:36 PM

ATOPPING1978

MEMBER
2 POSTS

The fuel system reads 'ready' when on the computer. The gas tank was replaced last year along with the exhaust or muffler I guess. My mechanic has been trying everything and I'm now trying to help him by asking around lol he has been in business for 30 years and can't figure it out.

Problem is the bill keeps going up and the car still isn't fixed.

Any other suggestions? What about the fuel pedal sensor? Would that cause this to happen?

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Saturday, August 25th, 2012 AT 6:49 PM