Question about 2003 Cadillac CTS
That tee you may call it is incorporated into one part so you need to replace it. It is call a heater hose
Posted on Jul 28, 2010
What parts of the engine bay are wet? Is there any antifreeze leaking into the interior (most likely on the passenger side, front)?
If it's in the interior, that would mean it's probably the heater core. That could be expensive, because those are not usually easy to replace.
If it's not, then you're in luck. Worst case is you need a new radiator. The radiator can be expensive, but they're easy to replace.
Just check every coolant hose (they're usually fairly large black rubber hoses, at least 3/4 inch wide, up to around like 2 inches for the main hoses) and make sure none of them are leaking. Actually, they're getting on in years, if they don't look perect you should just replace them all.
Then look at the radiator and make sure it's not leaking from there. It is not hard to track down a coolant leak if it isn't the heater core.
When you're checking hoses, don't forget, there are hoses that run from the engine compartment to the passenger compartment, for the heater core. Those might be easy to miss. Probably they'll be at the back of the engine compartment, running from the engine block.
Let us know if you have something more to know else accept the suggestion.
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Posted on Jul 28, 2010
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Posted on Jan 02, 2017
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