Changing coolant hose - JeepForum.com

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post #1 of 12 Old 06-01-2016, 10:29 PM Thread Starter
bluedaffy
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Changing coolant hose

Pinhole leak in the hose running from the water pump to the intake manifold on my 4.2 YJ. My manual and other forum posts outline flushing, and changing the whole system yadda yadda.

What I would like to know is if I go and buy a replacement hose, can I just disconnect the bad hose and replace it without messing with the rest of the cooling system?

I did a flush recently and installed a new water pump, so I'm hoping I don't have to make this a process. Will just simply replacing the hose and topping off the coolant be sufficient? Or will there be air in the system, or some other complications by doing this?

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post #2 of 12 Old 06-02-2016, 01:50 AM
IRQ
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You will undoubtedly have air in the system after changing a coolant hose, the most painless way to rid air from your cooling system is utilizing a Lisle 24680 Spill-Free Funnel
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post #3 of 12 Old 06-02-2016, 06:10 AM
jsawduste
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In your case I HIGHLY recommend taking it to a dealer. The trained service technicians will fix it properly the first time.


Beyond that, sell it.
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post #4 of 12 Old 06-02-2016, 06:14 AM
JeeperDon
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Put the pin back in it.
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post #5 of 12 Old 06-02-2016, 08:20 AM
mike134
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drain the coolant enough so the level is below the hose. install the new hose. refill the coolant. burp the bubbles.
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post #6 of 12 Old 06-02-2016, 10:02 AM Thread Starter
bluedaffy
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Thank you for the responses/help, I'll swap it this afternoon.
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post #7 of 12 Old 06-02-2016, 12:06 PM
mike134
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sounds good.

It honestly doesn't matter if you drain it all the way or part way. It's just about an equal pain in the *** in either case. There is a chance you will get LESS air into the system by draining partially instead of fully though.

In any case, I haven't had too much trouble with air bubbles. as long as you have the proper weep hole in the thermostat and run the engine for 15 minutes after warmed up with the radiator in the VENT position, you should get all the air out in quick order.
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post #8 of 12 Old 06-03-2016, 02:18 PM
TSEJEEPERS
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Quote:
Originally Posted by jsawduste View Post
In your case I HIGHLY recommend taking it to a dealer. The trained service technicians will fix it properly the first time.


Beyond that, sell it.
I don't get it what do you know about the OP?

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post #9 of 12 Old 06-03-2016, 02:47 PM
jsawduste
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More than I'd like to.
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post #10 of 12 Old 06-03-2016, 03:47 PM
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......

Stop whining about the 'ride' - If your YJ ain't wrangling your soul free, then might I suggest you buy a stationwagon... at least you can fit all your bull**** in the back.
~YJOTM MAY '16~
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post #11 of 12 Old 06-05-2016, 03:50 PM
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The OP posts a simple question, probably WAY BELOW the vast knowledge of some here and gets a smart a$$ answer. Just don't post if it is beneath you.

Good luck with your issue.

Turn a wrench, save a tree
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post #12 of 12 Old 06-05-2016, 03:54 PM
jsawduste
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The OP has a habit of posting questions like this then coming back with a sensible knowledgeable responses.

Time waster and band width abuser.

Sorry if I made some one cry, grow a set.
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