[nismojunkie]

well as it says my 91 240sx is leakin coolant inside the floor on both the drivers side and passenger.....yesterday the radiator cracked....i replaced it.....it was ok i thought......but i wake up this morning to find coolant inside the floor and quite a bit too.....im going to work in a min and havent had time to really get into it so suggestions would be good while im gone.....thanks.

 

[Miracle]

Sounds like a cracked/leaking heater core.

It's under the dash, and provides hot coolant to use for the heater when you turn your heat on. It shouldn't be too hard to replace, I wouldn't think.

 

[se-real]

EDIT: damnit Miracle beat me to it.
Ummmm. . . . heater core. Have fun with that! lol As fas as I know, your going to have to pull the dash. The heater boxes are pretty brittle so your going to have to be very patient while laying upside down in your floorboard.

 

[sir-t]

EDIT: damnit Miracle beat me to it.
Ummmm. . . . heater core. Have fun with that! lol As fas as I know, your going to have to pull the dash. The heater boxes are pretty brittle so your going to have to be very patient while laying upside down in your floorboard.

yes they are very easy to break. also be gentle on the new heater core when connecting your hoses back up. most heater cores are made of brass and they are easy to tear up if your rough on them

 

[undr_boost]

Yup, sounds like a heater hose problem. There will be two hoses that run from the outside heater core into under your dash near your glove compartment area (correct me if im wrong) One of the hoses is probably old and leaking. Pretty easy fix.

 

[sir-t]

Yup, sounds like a heater hose problem. There will be two hoses that run from the outside heater core into under your dash near your glove compartment area (correct me if im wrong) One of the hoses is probably old and leaking. Pretty easy fix.

could be a hose but usually theres a seal where the two brass pipes (part of the heater core) come through the firewall. so if it was the hose it should be confined to the bay(unless the seal isnt there) . i had a heater core break and leak inside my car before and it was cracked where the seam of the pipes meet the core itself

 

[HedTrip]

what u could do for the time being is loop the 2 hose's in the engine compartment. bypassing the heater core.
u wont have heat but atleast u wont have coolant leaking all over the place.

 

[sir-t]

what u could do for the time being is loop the 2 hose's in the engine compartment. bypassing the heater core.
u wont have heat but atleast u wont have coolant leaking all over the place.

Exactly what i did for about a week til i had time to rip the dash out. And a good idea because that coolant will ruin your carpet if it doesnt get cleaned out or if it continues for a while

 

[nismojunkie]

alright.
just got home.
i tore everything down in 20 minutes dash out and everything so now i get to start pulling my heater core.....i got another one from my buddy for 20 bucks so its pretty good.
fuck my shit son.
im tired of not being able to driv e this car.
ive had the car for about 2 onths and drove it 3 days before this bullshit happened.

 

[nismojunkie]

fuck this heater core.
as you can see its been fucked for a little while. haha
took 3 hrs to get it out.

 

[sir-t]

yeah they fucking suck. try not to skimp on the job puttin the dash and all bolts for everything back in or you will have vibrations and rattles from hell

 

[T3AM SPOTLIT3]

heater dont suck its good for you

 

[daegg]

Heat FTW

 

[98EKferiokid]

i've never had this problem with my honda robbie!j/k. you shoulda called and told me. hope you get it done quick. maybe we can go do some jdm tyte dorifto action in it.

 

[blackbelt]

heater core is the most likely culprit

 

[nismojunkie]

yeah. so i replaced the heaater core....still no heat! OMFG!
the blend door works fine, air blows strong but still no heat.
fuck my life son.

 

[aye bee]

do you have the heater hoses hooked up that go into the firewall?

 

[Countrydave]

make sure you got the lines on the right ones in the firewall because i think not possitive but pretty sure theres some sort of check valve that only alows the coolant to flow one way. if its backward then the coolant wont run thru the heater core = no heat...

 

[aye bee]

make sure you got the lines on the right ones in the firewall because i think not possitive but pretty sure theres some sort of check valve that only alows the coolant to flow one way. if its backward then the coolant wont run thru the heater core = no heat...

yeah that too.....

 

[venom_5]

oh noes, the flux capacitorzz!