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Old 05-26-2011, 11:50 AM   #1
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Heater Core bypass

My heater core is leaking and I dont have the money to replace it so I unpluged the heater hoses from the heater core and connected them together to bypass the heater core, is this ok to do?

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Old 05-26-2011, 12:07 PM   #2
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Yes.

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Old 05-26-2011, 12:22 PM   #3
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Ah yep, as stated. Till winter comes back around. Hopefully you'll have the bucks by then to replace it.
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Old 05-26-2011, 12:51 PM   #4
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Did that a year ago.

To bypass, disconnect them, but an adapter at a parts store, it's a straight adapter that goes from 5/8" to 3/4" (I believe that's the correct size). I also bought the finger type hose clamps so I could easily tighten them down by hand.

To change out the heatercore, it only costs about $60 for all of the parts, it's the fact that you have to unhook the a/c that sucks. So that's an extra cost of about $100 for the R-134 and a new dryer. I did everything myself btw.

I swapped in a new core last November when a/c wasn't needed, but heat was.
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Old 05-27-2011, 01:25 PM   #5
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did it take you a long time to replace the heater core; I bought a new core although I was told it is very time consuming and difficult if one is not a professional; did you have a manual or is it easier than I was told?
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Old 05-27-2011, 01:35 PM   #6
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6-7 hours unless your good and used to working on them. took me about 4.5 hours to do mine. Here is the best writeup I know of.

TJ Heater Core Replacement - 2
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Old 05-27-2011, 02:02 PM   #7
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Quote:
Originally Posted by arcountryboy View Post
6-7 hours
Why would they purposely engineer something to be that difficult to fix? Funny thing is I replaced one in 20 minutes on one of my old cars. It was on the inner firewall in the engine compartment. And with all the empty space in a Jeep engine compartment …
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Old 05-28-2011, 08:29 AM   #8
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great directions, thanks a lot, that is the best how to do article I have seen yet; hope I can help in the future.
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Old 05-28-2011, 09:13 PM   #9
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Snowbucks, a jeep is a piece of cake compared to some of the cars now. LOL!

Long gone are the simple ones. Try pulling a Lincoln dash out to replace one sometime.

6 or 7 hours for a first timer, as you go slow, and try and figure it out as you go.

Do em a couple of times and it becomes second nature and you can slam one in in a couple of hours. There are tricks to doing them that will save you time. Stuff you don't disconnect, and wiggle past to install em. Flat rate techs live by doing stuff the quick way. Still done correctly, but it's knowing the ins and outs that saves time.



Guard, follow the instructions, sure it will take some time, but you'll learn how it works, and how a lot of the rest of the dash pieces function. When something else happens you'll already have that knowledge gleaned, and it will save you time later on.

Working on your own jeep is a heck of a way to understand it, and fix it. And it can easily save you a long cold wet walk home someday.
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Old 05-29-2011, 03:05 AM   #10
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thank you
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Old 05-29-2011, 07:03 AM   #11
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Quote:
Originally Posted by Snowbucks View Post
Why would they purposely engineer something to be that difficult to fix? Funny thing is I replaced one in 20 minutes on one of my old cars. It was on the inner firewall in the engine compartment. And with all the empty space in a Jeep engine compartment …
It's called job security. You think they want every back yard mechanic doing this so that you don't have to take it to some shop where they can rape you for the cost?!!

Exactly why I don't do a whole lot of mechanical work on vehicles. NOTHING is simple anymore.
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Old 05-30-2011, 09:26 PM   #12
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Yea, I just wish the a/c evaporator wasn't inside the dash, that's caused nothing but issues for me, especially now that I'm constantly getting water in the dash, and it's not because the drain is clogged or anything, I've checked that and it's fine. Also the blower motor is squealing now. I really hate this thing sometimes. I wish it was better made.

Either way, the heater core took me about 6 hours to change out, and I took my precious time.

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