I heard today that if you block the EGR that the truck won't heat well in the winter. Anyone else heard this or experienced this first hand?

this is completely incorrect! it will have nothing to do with the truck heating. it will help keep the intake system clean vs leaving the egr unblocked = dirty.

Sounds like a load of bull, I can say mine heated just fine last winter.

I was told that it had something to do with the heated gasses keeping the coolant warmer or something like that.

:wtf: that's bull$hit

My heater takes a little longer to warm up.

Mine warm up no diffrent then it did..

Ran mine one winter not blocked, the rest always blocked. Normal winter down to zero, seems no difference. At -30 or colder, you really have to get some fuel into it for heat, blocked or not, like boot it down the highway for 20-30 miles.

Ditto - one winter unblocked, one blocked. No difference from the heat perspective.

Moved to Fuel System, Air, Exhaust, & Emissions Upgrades...

not true mine heats just fine had it running at 55below only time it cools down was when its idleing other then that no difference