I have a 2002 chev impala 3400 eng it is all ways bogging down when i start to drive have changed the plugs and wires and still dose it can some one help me please
I have changed the plugs and wires thought it was the trannie but they said no when cold
its fine but when worms up and i step on the gas pedal it will bog down until you reach
about 40 klicks then its fine
check your fuel pressure regulator at the vacuum connection...then replace it if the diaphragm isn't movin' when you apply vacuum...also check the source vacuum so make sure the vacuum line isn't cracked...replace with silicone ones~
The TPS or accelerator sensor can produce the symptoms you are describing~
since it seems to be temperature related am going to suggest an intake air temperature sensor~
maby fuel pressure regulator very common on that car
How to put a heater hose on
Looking for a Used Impala in your area?
CarGurus has 25,595 nationwide Impala listings starting at $799.
Search Chevrolet Impala Questions
Chevrolet Impala Experts