Coolant low. Crud on bleeder valve.
Thread Starter
Instructor
Joined: Apr 2011
Posts: 239
Likes: 18
From: Miami, FL
Coolant low. Crud on bleeder valve.
Hi Everyone,
2006 C2 65,000 miles.
Last week when changing oil I noticed my coolant level was low (about 1/4 inch below min) and there was crud around the seam of the bleeder valve. I've had no error messages or warnings, and coolant temp is always 175 after warm up. My water pump was replaced about a year ago.
I cleaned it off and after driving for a week the level seems about the same and there is a very very light buildup of crud. A few questions:
1. Could having the old .01 type coolant cap have anything to do with this? I have a newer .04 rep to replace it with.
2. OK to top off with distilled water for now? I don't want to spend a bunch on P coolant if I'm gonna end up replacing tank anyways.
3. Do I need to do any sort of bleed procedure to top off correctly?
Any insight would be appreciated.
2006 C2 65,000 miles.
Last week when changing oil I noticed my coolant level was low (about 1/4 inch below min) and there was crud around the seam of the bleeder valve. I've had no error messages or warnings, and coolant temp is always 175 after warm up. My water pump was replaced about a year ago.
I cleaned it off and after driving for a week the level seems about the same and there is a very very light buildup of crud. A few questions:
1. Could having the old .01 type coolant cap have anything to do with this? I have a newer .04 rep to replace it with.
2. OK to top off with distilled water for now? I don't want to spend a bunch on P coolant if I'm gonna end up replacing tank anyways.
3. Do I need to do any sort of bleed procedure to top off correctly?
Any insight would be appreciated.
Thread Starter
Instructor
Joined: Apr 2011
Posts: 239
Likes: 18
From: Miami, FL
Forgot to mention I had tightened the screws, with the exception of the back corner one which is hard to get too. Didn't tighten too much for fear of messing something up. The only reason I asked about the cap is because the guy at the parts shop thought that may have something to do with it. I haven't read about anyone replacing just the valve....has anyone done this?
Instructor
Joined: Jun 2008
Posts: 214
Likes: 2
I would agree with that. While a new bleeder valve can be ordered, replacing the coolant tank , which includes a new bleeder valve , would be my approach. Not sure if they come with a new cap but it should also be replaced with version 4 while you're at it.
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Thread Starter
Instructor
Joined: Apr 2011
Posts: 239
Likes: 18
From: Miami, FL
Agree with everyone above about considering replacement of the whole tank, especially since it seems like only a matter of time before they fail (wish I had known when I had the water pump replaced).
I'd hate to replace the whole thing if it's something simple like an O-ring in the bleeder valve that I could potentially DIY myself though.
I'd hate to replace the whole thing if it's something simple like an O-ring in the bleeder valve that I could potentially DIY myself though.
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3rd Gear
Joined: Aug 2010
Posts: 3
Likes: 0
I recommend you replace the tank. I just did the job on Saturday and it only took a couple hours. The tech article by Pelican Parts made the job pretty easy. I did have to lower the engine because there isn't much room in the C4 engine bay to wiggle it out.
I rebuilt my bleeder valve about two months ago. I replaced the two o-rings and the eight bolts on top. It stopped the crud build-up, but I noticed a leak in the tank last week. Once I pulled it out, the leak was in the exact spot as BIG Smoke's. The original tank lasted just over 77k miles.
I rebuilt my bleeder valve about two months ago. I replaced the two o-rings and the eight bolts on top. It stopped the crud build-up, but I noticed a leak in the tank last week. Once I pulled it out, the leak was in the exact spot as BIG Smoke's. The original tank lasted just over 77k miles.
Instructor
Joined: Jul 2011
Posts: 208
Likes: 7
From: Los Alamos, NM
My reservoir was cracked on the backside of the support in the center. Photos and info on how I removed my reservoir are in this thread:
https://rennlist.com/forums/997-foru...997-1-a-2.html
https://rennlist.com/forums/997-foru...997-1-a-2.html
