94 Suburban K2500 Rear Heater Hose Disconnect

[Sawlty]

How do I release the quick disconnects on the rear heater hoses where they connect to the rear heater core on my 94 suburban k2500?

 

[1998_K1500_Sub]

How do I release the quick disconnects on the rear heater hoses where they connect to the rear heater core on my 94 suburban k2500?

I used a cut-off wheel to disintegrate the quick connectors (while saving the hard-line plumbing). I also used the same wheel to remove the old hose from the rear coolant hardlines, by cutting through the crimped collars.

You'll need to do something similar in the middle of those rear coolant lines (under the passenger's side door) too, where there's another set of quick connect fittings / collared fittings.

Finally, up in the engine bay behind the wheelwell, there's another set of hoses that are held onto the rear coolant lines with crimped collars.

See this thread:

95 Suburban rear heater hose questions

Ok Burb gang, got a question. This weekend I got a hairline crack in one of the plastic heater hose quick disconnects under the hood (where it splits into front/aux heaters, not actually at the heater core), and a pinhole coolant leak. The heater hoses look like they're probably original, so I...

www.gmt400.com

 

[Sawlty]

Excellent. Thanks @1998_K1500_Sub !

Much appreciated, sir.

 

[Sawlty]

I’m wondering if this is how to remove these quick disconnects on a 94!? I know this video shows how to remove the fittings in the engine compartment, but possibly the same for the rear heater core on the suburban.

xc_hide_links_from_guests_guests_error_hide_media

 

[Sawlty]

The video above is for the newer style, I believe. I think I’m 94 they are pinch style.

 

[1998_K1500_Sub]

The video above is for the newer style, I believe. I think I’m 94 they are pinch style.

Do you want to save / reuse them?

 

[Sawlty]

I’ll let you know! Lol.

At this point I’m just trying to get this thing started with as little pain as possible. Lol

 

[termite]

My 95 has the pinch style. No tools needed.

I retained the "quick connect" when i had it apart but did have to replace the hose assembly running down by the exhaust manifold with an ebay part. Aftermarket and required swapping out a clip from the original but no leaks and went into place.

 

[Sawlty]

Excellent. I soaked the quick connects with PB Blaster and they came off finally. Took 2 days for them to decide they’d let go. Probably going to replace Al the heater hose at some point. Rebuild it same as 1998_K1500_sub did his. Very nice rebuild!!

 

[Sawlty]

My 95 has the pinch style. No tools needed.

I retained the "quick connect" when i had it apart but did have to replace the hose assembly running down by the exhaust manifold with an ebay part. Aftermarket and required swapping out a clip from the original but no leaks and went into place.

Happen to have any part numbers for those parts?