just did a motor swap in 98 1500 2wd. put a 96 motor in it
takes a long time to build up heat in motor,
wont go over 150deg. put a new 190deg.thermostat in it still wont heat up. trip to work barly hit 150 20 miles, out side temp 30deg.
old motor would get to 180deg. everything else works fine
thanks for any info carey