05 Impala running problems

Asked by Jun 06, 2017 at 01:15 AM about the 2005 Chevrolet Impala Base

Question type: Maintenance & Repair

So I'm having an issues with my 05 Impala. It starts
and idles fine with no abnormal shakes or sounds.
When the engine warms up, when traveling over
30mph it starts to chug and stall like it's running out
of gas. I've changed the fuel filter, fuel pump,
cleaned the MAF sensor (looked good, no broken
wires and connector was fine), new air filter,
crankshaft position sensor was replaced 6 months
ago, cleaned fuel injectors and I'm out of ideas. I
get no check engine light to give me a little
direction. I think it may be a catalytic converter
issue and I hope it's not. Any ideas would be greatly
appreciated as I've invested a lot of money in the
last year to keep this thing going for the long haul.

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