2005 Montana low power

Starcar33

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I have a 2005 Pontiac Montana 3.4l engine when I accelerate it looses power light acceleration it does ok not like it should I replaced the computer, had the heads resurfaced installed new gaskets new fuel filter, pump, and pressure regulator also installed sensors is still sluggish on accelerating even put new plugs and wires in anyone have any ideas?
 
Do you have a check engine light on?
I know you have a new fuel pump but did you do a pressure test after installing it?
You are sure the transmission is not slipping and it is correctly downshifting?
 
Yes the pressure is good
What is the pressure?
What are the answers to the other questions?
______________________________
 
I'll have to
What is the pressure?
What are the answers to the other questions?
Take it again I wrote several items dn most of the time when I write something down if it's within specs I usually discard the paper it's written on
 
I'll have to

Take it again I wrote several items dn most of the time when I write something down if it's within specs I usually discard the paper it's written on
Right now it's a little rough trying to get things done on my van because of the temperature's
 
I have a 2005 Pontiac Montana 3.4l engine when I accelerate it looses power light acceleration it does ok not like it should I replaced the computer, had the heads resurfaced installed new gaskets new fuel filter, pump, and pressure regulator also installed sensors is still sluggish on accelerating even put new plugs and wires in anyone have any ideas?


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