highway power sluggish on my 98 chevy C1500
#1
highway power sluggish on my 98 chevy C1500
hi im new here. . .well i bought me a 98 chevy C1500 pickup with 350 5.7 vortec i had some flowmasters installed don't know what they called but it had 2 pipes in back of muffler with 2 pipes going out. . .the problem is when im on the highway the truck feels sluggish in the sense that i step on gas pedal but it don't feel like it picks up good. . . the rpms go up and it goes to 70 quick but don't feel like its going 70 cause i see people passing me up that were way behind. . . .i changed the spark plugs and don't know if thats the problem i put autolites and i had to go back and exchange one cause it was defective so im thinking of buying more expensive spark plugs to see if that will give it more power. . . .or could it be the oxygen sensor might need replacing. . . .what can it be and what can i do to get more power out of the truck
#2
Try cleaning your Mass Airflow Sensor. The speedos in these trucks seem to be somewhat optimistic, mine reads about 2mph more than true speed. Remember you are driving a heavy vehicle so don't expect lively part throttle response.
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