A friend of mine had his car (2003 Park Avenue Ultra) overheat pretty catastrophically the other day. Today we took a look. Started by filling it up with water and the problem was immediately apparent.
Apparently this is a common problem on the GM 3.8L V6. So common, in fact, that the local parts shop had upgraded replacements in stock. Worryingly the replacement kit comes with two, but I sure can’t find a second one...
Hopefully no permanent damage to the engine and also hoping for an easy repair...
Fix wasn’t as straightforward as hoped, but was OK. Turns out the two elbows (found the 2nd 0ne) run through the alternator bracket for... reasons? I can think of several better ways to do this but I’m sure this was cheaper. Either way, the alternator and belts had to come off to get the bracket and old elbows out. Luckily that was pretty trouble free coming out, and a little bit of lube got them back in pretty easy too.
“While we were in there” we went ahead and replaced the absolutly DESTROYED supercharger idler pulley that had grenaded itself years ago but wasn’t a priority to fix.
Fired the car up, bled the system, and we seem to be in good shape!
Tomorrow we’ll drain and refill with coolant.