phan10m

I'm guessing he plug that's in the lower valence of my grille is my block heater? What degree would be best to plug it in at? Sorry if I'm thread jacking.

cherokee jim

My 92 F-150 had one of those frost plug heaters in it.It basically disinegrated and broke in 2 pieces falling into the block passage.I managed to fish out the larger of the 2 pcs,but the smaller chunk went somewhere unknown to me.I put a new frost plug in her and that week I traded it off.Funny this subject has been brought up-I'm putting this on saturday while it is still nice out,temps sposed to drop sharply sat evening,sunday early.

Especial86

iTrader: (1)

If any, I'd go pan heater. But I don't find the need for one unless it is -10 consistently...
Couldn't you temporarily tape some of those hot hand warmer packs to the oil pan if it is really cold occasionally??. I figure this would work good when you don't have access to an electrical outlet or an extra battery.

BEDROCK

Any of you that have installed one in a 5.4 please chime in. I just did mine. (drivers side rear frost plug hole where the factory puts them). But unlike others I've done, there is no positive seat-groove- for the O-ring in the hole. It slides back and forth in the hole and tightening the toggle bolt doesn't increase pressure on the O-ring at all. I'm wondering if they sold me the wrong heater.It almost looked like there is a seat for an O-ring on the outside of the hole that would require a different, larger diameter O-ring and then the flange on the heater would squish it when the bolt was tightened. Any one know about this? And sorry to be so long winded.