I have a 2002 LB7, 300,000 miles on it. The original block heater went out in December of 2016, so I replaced it. I think the replacement was purchased online, along with a new cord. The replacement block heater lasted about 3 months (Feb-Mar 2017), and I replaced it again in January of this year, this time buying a heater and new cord from the dealership. Well, now the 2nd replacement has quit working.
I like to leave it plugged in if the temps get much below 15 degrees F at night. We get a stretch in the winter with the low temperatures dropping well below zero, and my experience is that it starts hard when temps get below 10 degrees.
I use a standard extension cord, I would guess on the order of 14 gauge wire. On the original block heater I used the same extension cord and it lasted 10+ years; have I just gotten bad luck with parts, should I use a heavier extension cord? I'm up at 4:30 every morning to get ready for work; I really don't want to get up at 3:00 to plug the truck in and keep a stupid block heater from failing.
I like to leave it plugged in if the temps get much below 15 degrees F at night. We get a stretch in the winter with the low temperatures dropping well below zero, and my experience is that it starts hard when temps get below 10 degrees.
I use a standard extension cord, I would guess on the order of 14 gauge wire. On the original block heater I used the same extension cord and it lasted 10+ years; have I just gotten bad luck with parts, should I use a heavier extension cord? I'm up at 4:30 every morning to get ready for work; I really don't want to get up at 3:00 to plug the truck in and keep a stupid block heater from failing.
