GPR and Intake heater...
what position is each in? I direct wired the front one but in general discussion I have been told the GPR is the rear.I changed the front late last winter,still no start put on wire started several times,this winter below 35 must heat block or crank 4-5 times.If I was wrong,guess I should put old one back on and put new one in rear.Figured segment out in PCM. Thanks. 99 F250 Sup Cab 7.3 6spd 111000 mi.