4.3 vortex center port injection
fuel pump is fine
my truck has to crank a few times before starting some times, sometimes it starts right up.
it surges on the high way between 50 mph and 60 mph
but few time it may just surge
i am due for a tune up
but im not convince that's my problem
i also just did a tire rotation, and now my truck shakes really bad on the high way.
i use to have a problem where when i go 40- 45 mph my truck would shack, it was my universal of the drive shaft.
could another be bad, and what one?
please any suggestions will be trouble shot.
i am a mechanic in my free time,and love my chilton's
i am trying to narrow my possibility's, thanks
i have brand new sierradial delta a/t
235 70 15
almost nre, under 2,000 miles
alomst under 2,000
fuel pump is fine
my truck has to crank a few times before starting some times, sometimes it starts right up.
it surges on the high way between 50 mph and 60 mph
but few time it may just surge
i am due for a tune up
but im not convince that's my problem
i also just did a tire rotation, and now my truck shakes really bad on the high way.
i use to have a problem where when i go 40- 45 mph my truck would shack, it was my universal of the drive shaft.
could another be bad, and what one?
please any suggestions will be trouble shot.
i am a mechanic in my free time,and love my chilton's
i am trying to narrow my possibility's, thanks
i have brand new sierradial delta a/t
235 70 15
almost nre, under 2,000 miles
alomst under 2,000