dreaded heater core - Nissan Xterra Forum
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post #1 of 20 Old 12-11-2011, 10:54 AM Thread Starter
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dreaded heater core

I purchased an aftermarket core (spectra) minus the the plastic inlets(probably the cause of the leak) . I looked at nissan oem core, these parts come with the assembly. Is there a place where I can buy just the inlets and orings? Also, I read that there is a method of replacment without removal of the dash. Is this true?

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post #2 of 20 Old 12-11-2011, 01:13 PM
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The outlets are not available from Nissan if they were many here would be ecstatic as they would not have to rip apart the dash to get the core out.....which is the only way I'm aware of to replace the core.

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post #3 of 20 Old 12-13-2011, 05:01 PM
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wait so your saying that nissan dont produce the inlet and return manifold for the heater core anymore ?
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post #4 of 20 Old 12-13-2011, 06:56 PM
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Originally Posted by assassin_works View Post
wait so your saying that nissan dont produce the inlet and return manifold for the heater core anymore ?
If they did at one point....they no longer do according to the parts diagrams.

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post #5 of 20 Old 12-13-2011, 11:53 PM
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so what are we supose to do for us that have the heater manifolds broken any aftermarket co. building then or is it your just SOL
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post #6 of 20 Old 12-13-2011, 11:55 PM
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so what are we supose to do for us that have the heater manifolds broken any aftermarket co. building then or is it your just SOL
None that I am aware of.

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post #7 of 20 Old 12-14-2011, 03:14 PM
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so what are we supose to do for us that have the heater manifolds broken any aftermarket co. building then or is it your just SOL
The heater core itself has two long plastic tubes coming out of it...so, the tubes and the core are all one piece.

Those are the tubes that pass through the fire wall, and are the nipples you connect the heater hoses to in the engine bay.



There is no "manifold" per se...and the core cost me ~ $35 or so from Courtesy Nissan IIRC.


The swap itself takes 5 minute, super easy.

The process of getting AT the mofo, which is flat against the firewall behind the dash, etc...takes hours.

Putting it all BACK takes a few hours too.

I imagine that a pro dash guy could do it in less than an hour, but I was methodical, and taped labels on all the wires and screws, etc...so I'd remember where things went later, as I didn't do it all on the same day.





If LUCKY, the only broken parts are at the ENDS of the tubes IN the engine bay itself, where you can reach them...and, fit a hose section OVER them to essentially patch the leak point.

If the break/leak is on or too close to the passenger side of the firewall, you're screwed and glued.


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post #8 of 20 Old 12-14-2011, 04:27 PM
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Quote:
Originally Posted by TJTJ View Post
The heater core itself has two long plastic tubes coming out of it...so, the tubes and the core are all one piece.

Those are the tubes that pass through the fire wall, and are the nipples you connect the heater hoses to in the engine bay.



There is no "manifold" per se...and the core cost me ~ $35 or so from Courtesy Nissan IIRC.


The swap itself takes 5 minute, super easy.

The process of getting AT the mofo, which is flat against the firewall behind the dash, etc...takes hours.

Putting it all BACK takes a few hours too.

I imagine that a pro dash guy could do it in less than an hour, but I was methodical, and taped labels on all the wires and screws, etc...so I'd remember where things went later, as I didn't do it all on the same day.





If LUCKY, the only broken parts are at the ENDS of the tubes IN the engine bay itself, where you can reach them...and, fit a hose section OVER them to essentially patch the leak point.

If the break/leak is on or too close to the passenger side of the firewall, you're screwed and glued.



oh i know how to do the job itself but everyone that i checked only sell the core but not the manifold tubes ( plastic tube) that connect core to heater hoses .... mine broke flush with the fire wall lol the only thing that i can think of is to tig some aluminum tubing in place of that plastic manifold
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post #9 of 20 Old 12-14-2011, 04:40 PM
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Mine broke pretty much flush with the firewall also:



I was able to fix it by removing the rubber grommet and pushing the hose through the firewall hole. There was enough room to get a clamp on it and make a secure connection. I don't have any photos of the fix, but can snap one if you want.

By the way, were you doing a body lift when this happened? Just curious, that's how mine happened.

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post #10 of 20 Old 12-14-2011, 05:16 PM
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no it just started to leak from the hose when i went to replace the heater hoses they just came apart
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