![]() This time around, the hiss from the vacuum leak was gone, but it still idled badly. It never ran particularly well, it would sometimes knock, or sometimes have a harder time starting than usual, or just idle badly and shake sometimes. The car was running for a few minutes, and I smelled gas, although it had done that before so I just assumed it was a normal “old car” problem. Not a lot at all if any entered if it happened, because I did not see any. I don’t think any dirt entered the valve, but it could be a possibility. I removed the PCV valve from the engine while it was running to test the valve, and sure enough it had a vacuum so the valve had to be working properly. I should have checked I guess in case it got sucked it or not. ![]() I am not sure if there is a grommet back there or if there was. It was just kept in place by the stiffness of the hose. I removed it from the air intake duct which was easy enough, but it’s connection to the valve cover (?) in the back was so loose it just came out, and when I reinstalled the fresh air hose, the back did not want to seal fully (if it was ever sealed in first place). One other thing I messed with during the installation of the PCV hose (I tried to disturb as little as possible) is the fresh air breather hose (the yellow hose in the picture in first post). I felt around the hose and didn’t feel a vacuum so I assume the hose is securely installed. I could hear no hiss like the cracked hose made. I started the car and it seemed to run fine. After installing the middle connection point, I installed the bolts, and installed the PCV valve in the other end of the hose (the valve has the same number stamped on it as the original and is ACDELCO branded), and inserted the valve into the engine. ![]() The U shaped connector that connects the hose to the “purge solenoid” barely fit on but seemed to fit tightly once I got it on (it was smaller and narrower than the original but seemed fine otherwise). (I really apologize for my vocabulary) But I continued on, and the hose I bought had the same grommet anyway. The walls in there are just so dark that it looks like a black hole. I double checked that there was no debris left in the hole, but the flashlight seemed to be shining into a pitch black hole, so I had to assume that none of the grommet had fallen in (the majority came out at the very least, it wasn’t exactly brittle but just a gooey, soft mess). So I removed the bolts on the bracket and there was just enough wiggle room (just a little) that I was able to squeeze the hose connection to the intake manifold (the metal part of the engine with “3100 SFI” on it) out from underneath, although the grommet (a ribbed grommet) came off of the hose connection point (the connection point is just a cylinder that the grommet was covering so it was two separate pieces if that makes sense) and fell where I couldn’t reach it - outside of the engine thankfully. When I replaced the hose, it looked pretty close to the original just the U shaped end connector going to “purge solenoid” was smaller but I did not think it would matter too much. Bad news: car won’t start and I do not know what’s wrong. It was slightly warmer today so I decided to do the hose replacement. Really? Now I’m glad about my temperature. If I need to remove the fresh air breather hose to push it out of the way, I can just pull it out very carefully right? And if I need to remove them, how do the throttle cables (I think that is what they are called) come out of the bracket? Hopefully I won’t need to remove them. Hopefully it will be enough to install the hose. ![]() Then I’ll install the new hose by slipping it on underneath the bracket and just bolt the bracket back on. Can somebody let me know if this will work? I’ll just remove the 2 bolts on the metal bracket and lift it just enough to remove the old hose, without disturbing the throttle cables on the bracket. I could manage I believe without moving it out of the way. I think the only real obstructions I have are the metal bracket and a fresh air breather hose connected to the air intake hose, but I do not think that the fresh air breather hose will be in my way. I have a cracked PCV hose, and I’ll need to remove it, but part of the hose cannot be removed without moving an obstruction, as you can see in this image. I hope somebody on here has experience with the Buick Century with 3100 3.1 L V6. ![]()
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