Does a heater core leak kill coolant system effectiveness?

cpwolf

cpwolf

Texan
Supporting Member
Joined
Jun 15, 2020
Messages
1,689
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TEXAS - Cedar Park
I’ve had a smell like in all molasses, and it’s a heater core leak.

So this summer in Texas I got the Dorman Bypass and did a flush and new Mopar radiator.

Life is just in the way of me doing an 8 hour change right now.

Curious, anyone have experience with this and do you see that the leak compromises the cooling system? I’m going to take I to the ranch and thought about taking off the bypass to have some heat, but don’t want to start spiking temps. Just curious if anyone has seen and done a direct comparison?
 
Answer to your question is probably not a cooling problem especially in cooler weather.

Unless it's a really significant leak where the system is not holding pressure and losing a lot of fluid.
 
Is there a quick & easy way to bypass the heater core? I want to drive my Jeep but don't know when I'll be able to carve out 3+ hours to replace it any time soon.
 
cpwolf said:
This is everything you need to bypass

Dorman 626-001 Engine Heater Core Bypass Kit https://www.amazon.com/dp/B09JHW9VSG/?tag=wranglerorg-20
Click to expand...

You can get by without using the formed hose elbow if you wanna save a couple bucks.

20211101_162924.jpg
 
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