hi,
I have Trailblazer 2005 LT 4.2L 6L and i am facing problem while accelerating in between when it reaches to 60 km/h till it reaches 90 km/h and after that it runs fine and until 60 km/h also runs fine but if i press the accelerator it hesitate or fluctuation type of feeling but to get out of this situation i used to press harder and reach above 90km/h and its fine after that.
I went to many mechanics but they couldn't figure it out exactly and told me several things some told me to change
1) coils
2) fuel filter
3) injectors
4) catalytic converter
i already did complete engine overhauling and cleaned injectors ,fuel filter cleaned but i didn't change coils and about the cat its not there the previous owner removed it .
things to be noted there are no any codes coming and i checked with several mechanics and they told me the Transmission is ok there is no issue with it.
i am facing this problem before overhauling and still its there.
now iam confused ........i don't know what to do.....need help please
one more thing i noted is the temperature here in our country is nearly 40-47 c and if i travel to some places where the temp is 18c it seems a bit ok but still have issue .
I have Trailblazer 2005 LT 4.2L 6L and i am facing problem while accelerating in between when it reaches to 60 km/h till it reaches 90 km/h and after that it runs fine and until 60 km/h also runs fine but if i press the accelerator it hesitate or fluctuation type of feeling but to get out of this situation i used to press harder and reach above 90km/h and its fine after that.
I went to many mechanics but they couldn't figure it out exactly and told me several things some told me to change
1) coils
2) fuel filter
3) injectors
4) catalytic converter
i already did complete engine overhauling and cleaned injectors ,fuel filter cleaned but i didn't change coils and about the cat its not there the previous owner removed it .
things to be noted there are no any codes coming and i checked with several mechanics and they told me the Transmission is ok there is no issue with it.
i am facing this problem before overhauling and still its there.
now iam confused ........i don't know what to do.....need help please
one more thing i noted is the temperature here in our country is nearly 40-47 c and if i travel to some places where the temp is 18c it seems a bit ok but still have issue .