SINCITY192

94 zj 4.o 6cyl auto trans
i changed my heater core months back and ever since I haven't had my defrost on because I was told I needed to get my a/c system recharge before I can use the defrost again.
but my heat worked great, but it only blew out of the front vents, I never tried the defrost because of what I was told.
After I changed my head last weekend and got it started back up,
I have noticed that now when I switch on the heat it only comes out the defrost vents., and its set to come out the front vents???
Also the last couple of days have been like 70 degrees and I havent had the heat on
but heat is coming from the vents feels like engine heat???
my temp guage is a tad bit over the 210 mark so I wouldnt say its overheating but its definitely running hot.
The only thing I can actually say I've done was flush the system with a hose before I refilled it after the head job?
PLease help!

freegdr

look for unplugged vacuum lines.

SINCITY192

I was checking this whole time I change my oil I didnt see any???
Could it be a vac behind the instrument panel

freegdr

its possible some thing came loose from a couple months back