ekrebs

Anyone know what is the best way to bypass the heater core? i know I need to bridge the IN and OUT line on the engine side to prevent any flow to the cabin ( heater core),

Just looking to see if anyone has done this, looking for details (pic's or diagram)

Thanks!

ekrebs

WOW!! no one can contribute to the post??? I posted the same question on club na-t and already have a couple contributes!

1sxyrxy

assuming its a sc300 havnt done it myself but doesnt seem hard. route the line on the back of the cylinder head to the line that comes out on the passanger side coolant pipe, the pipe runs off the back of the water pump and runs all the way to the back of the engine, just connect those 2

Kaydee

is it the same as this? If so, your welcome...If not, try again

https://www.clublexus.com/forums/sho...ter+core+valve
https://www.clublexus.com/forums/sho...035#post966035

1sxyrxy

ekrebs

So all i should do is bridge these two?

ekrebs

Im trying to eliminate the heater all together! Thanks though!

Vdog15

Im having the same problem, but if im on the freeway and I punch the gas, my heater gets hot as long as im in it. Also 1sxyrxy your avatar is banging!! LOL

drewdizzle

iTrader: (4)

I have done this on my 1j. there is a hose that comes from the block towards the back of the motor really close to the firewall. and I just ran a hose from there to a hose on the back of the head, passenger side of car, against the firewall but very easy to get to. basically look at the heater valve and core and just bypass all that plumbing.

2.5tsoarer

iTrader: (3)

heater core is good to have if your car starts to over heat. Turning the heater on will help lower temp for a few miles till you get somewhere.

does the A/C system throw a code if you bypass this ?

Papajorgio

iTrader: (7)

HEY yall, resurrecting this thread i found in my search for an answer to my problem, well i recently changed my radiator cap to a trd 1.3 cap cuz my stock cap blew the f up, so like i expected the weakest link in the system would take a dump shortly after due to the higher pressure, so it ended up being the heater outlet hose that runs to the top of the cylinder head, so my question is can i just cap the inlet/outlet on the motor side to bypass the heater core? or do i need to run a hose in between both to keep coolant flowing to the back of the block? any insight would be greatly appreciated,

Papajorgio

iTrader: (7)

heres a quick pic to help explain my question,

Aj1327

Did this work I’m looking to delete my whole heater as well