2003 suburban coolant hose connector question

[Jocko PDX]

Last weekend, the connection piece that attaches the hose to the heater core broke. I picked up a new connecter but it was difficult to remove, and now the new one will not seem to attach to the heater core any suggestions from prior experience

here is the amazon link that shows a photo of the connector that I cant get to snap in. The hose goes in fine, its the other end I cant get to snap in..

https://www.amazon.com/ACDelco-34002-Professional-Connect-Connector/dp/B000C9PJEG/ref=asc_df_B000C9PJEG/?tag=hyprod-20&linkCode=df0&hvadid=316725397836&hvpos=&hvnetw=g&hvrand=17041332938894767496&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032946&hvtargid=pla-601207085678&psc=1

 

[strutaeng]

You don't have a rear heater with the Tee quick connects?

On my 99 Silverado when those quick connects broke I just removed them and slid the hose over the aluminum tube with a worm gear hose clamp. That was like in 2008 when I had just bought it. I don't know if it's the same as your truck.

On my 06 Suburban I couldn't do that when it broke because it's got tee quick connects.

Maybe try lubricating the o ring inside the quick connect.

 

[OR VietVet]

Yea, don't force it. Lube the o-ring, too. Sure you have the right size connector? Is it a GM connector/hose?

 

[Doubeleive]

Last weekend, the connection piece that attaches the hose to the heater core broke. I picked up a new connecter but it was difficult to remove, and now the new one will not seem to attach to the heater core any suggestions from prior experience

here is the amazon link that shows a photo of the connector that I cant get to snap in. The hose goes in fine, its the other end I cant get to snap in..

https://www.amazon.com/ACDelco-34002-Professional-Connect-Connector/dp/B000C9PJEG/ref=asc_df_B000C9PJEG/?tag=hyprod-20&linkCode=df0&hvadid=316725397836&hvpos=&hvnetw=g&hvrand=17041332938894767496&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032946&hvtargid=pla-601207085678&psc=1

wrong connector, that's why it will not stay on.
you need these, I recomend replacing all 4

 

[Jocko PDX]

wrong connector, that's why it will not stay on.
you need these, I recomend replacing all 4
View attachment 412371

The connector that I bought matches the connector that broke exactly...

 

[Fless]

SWAG - Make sure the new connector doesn't have multiple o-rings inside.

 

[Doubeleive]

The connector that I bought matches the connector that broke exactly...

well unless for some strange reason you do not have rear heat or someone previously deleted it then the ones I pictured are the ones needed. the single out adapters are mainly used on the pickups and are a different size
might help to post up some photos of the passenger side engine bay

 

[Doubeleive]

The connector that I bought matches the connector that broke exactly...

also that part number does not match to a 2003 suburban, wrong part! (it is used mostly on OBS old body style)
the reason it won't stay on is because the heater core line is a smaller size, it's not much but it's enough that it will not stay on

 

[strutaeng]

These are the ones I bought for my 06. That tool is to remove the quick connects.

Did any of the GMT800 SUVs NOT have rear heaters? Maybe like some government-spec or forestry models? Or Mexican market models?

 

[Jocko PDX]

also that part number does not match to a 2003 suburban, wrong part! (it is used mostly on OBS old body style)
the reason it won't stay on is because the heater core line is a smaller size, it's not much but it's enough that it will not stay on

the part I sent a lik for was just for photo refence as I do not have the part with me to send a photo of.

 

[Doubeleive]

the part I sent a lik for was just for photo refence as I do not have the part with me to send a photo of.

WELL..........................LOL, you kind of have to provide accurate information for us to help you out

 

[Jocko PDX]

see photos below. The T part that some above are referring to attaches to the part I have

 

[Doubeleive]

see photos below. The T part that some above are referring to attaches to the part I have

at minimum you need the black colored T (15055342) I already pictured with the part number. It's best to replace both T's and both hoses, because if that one broke the other won't be far behind and it could happen at a inconvenient time leaving you stranded. it only takes a minute or two for that broken line to spit out all the coolant

 

[Jocko PDX]

at minimum you need the black colored T (15055342) I already pictured with the part number. It's best to replace both T's and both hoses, because if that one broke the other won't be far behind and it could happen at a inconvenient time leaving you stranded. it only takes a minute or two for that broken line to spit out all the coolant

ok that makes sense thanks for the advice

 

[houstontaylor]

On my 2003 Tahoe I just got through replacing the rear heater quick connects and hose part of the heater lines. The old quick connects were almost impossible to get off and had to be broken at the connector and twisted with pliers to do it. Then I cleaned off the gunk with brake cleaner. The new ones then went on fairly easily.

 

[adriver]

It already broke once. Here's the upgraded metal version that will save you a few bucks. This is what I bought for my 02 pickup. it SHOULD BE the same one. Dorman 800-409HP

I bought a fuel line disconnect kit off amazon. This thing was $8. I don't recall the size off hand, but it was in there.

https://www.amazon.com/gp/product/B093ZTFGRK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Here's the amazon link for cheaper:

https://www.amazon.com/gp/product/B07RK3JYZN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1