snaphappy

Hey guys, I started a thread a couple days ago because I have a slight rattle over bumps. It only occurs when the wheels are straight and when the car is warmed up. I suspected the lower control arm.

Anyway, I got under the car today and didn't know what I was looking at. Based on my research - all the grease everywhere means CV Boot failure. Could be a rip in the boot. Could be a loose clamp. Here's a video. You guys tell me what you think. I have zero experience working on suspensions:

campbesl

Yes, that is a leaking CV boot. Link below has good DIY info. I did it last week and added my thoughts.

https://rennlist.com/forums/997-turb...l#post16654884

TheTorch

yup. might just be a loose clamp, in which case, you are in luck: https://rennlist.com/forums/997-foru...t-leaking.html

look for a tear first, though, because if the boot is bad, it's a much bigger job.

snaphappy

How do I know if "too much" grease leaked out and the CV joint needs to be serviced/replaced? Tightening a loos clamp won't get rid of the rattle either. Although the leaking boot and rattle might not be related.

TheTorch

if you have noises, esp clicking, that means the CV joint could be damaged and no amount of putting grease back in is going to fix it. Probably need to get it checked out.

snaphappy

I definitely wouldn't describe as clicking, and it doesn't happen when I turn the wheel. It's a short precise, one note, rattle that occurs only on bumps with the wheel straight.

My guess is that the CV boots leaking is unrelated to the rattle. But I guess I'll find out.

snaphappy

Did a little more research. Sounds like I need a special grease gun, my mechanic friend said it has a kind of needle that attaches to the end of the grease gun so you can get the grease up in there. Whole thing doesn't sound too hard to me. Gonna take a stab it. Given that there's no creaking sound whenI turn the wheel I think the CV Joint is fine.

Thanks for all the quick responses

TheTorch

you should look at the thread i sent you. has all the pics on how to do this easily.