I have a decent coolant leak on the rear side of the engine. I can hear the pressure of the leak after I turn the car off. It goes through pretty fast. I had to drive 150 miles home and had to stop every 15-25 miles to add water.
Any idea what it is. I've looked at all the hoses going to the heater core and none of them look like they are bad.
There is a temp sensor on the rear head by the brake master cylinder maybe that is where utter is leaking.
Got any pictures of the rear of the engine showing what areas are wet(?). Is there any coolant pooling at the corners of the lower intake/valley area of the block? Sometimes when the lower intake gaskets start leaking, coolant will be sent down the rear or front of the block depending on exactly where the gasket leaks.
Well I finally found it and got it off. It was a metal coolant line down by the exhaust and goes back up turns into rubber and then goes into the heater core. It had a good rust hole in it. Man is this car hard to work on. Everything is just jammed in and some weird stuff. I mean Ive worked on 3100's which its hard to get to the back but do able and 3800 well is a piece of cake next to both of these.
Anyway back to the problem. After I got it out I went and check the parts stores and of course they didn't have it. So I went to the dealer and spent 30 min trying to explain to the guy what I needed. We found it but GM no longer makes it and no dealer had it in stock. So he had to call a vintage GM parts store which had it but cost me 70$ for the 2 lines and hose. O well at least I found one. Should be getting it later next week. Then I can get this thing on the road a little before winter.
Sometimes these cars can take the fun out of working on things but getting to drive them makes it worth it for me. Ouch on the price bud I just used JB puddy and called it a day and that was about a year ago and it still holding.
Well I ended up cutting the tube and making it half metal and added rubber hose and re routed it till I can find or have a replacement made.