| |
Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
====
| | |
7 members (TexasJim50, rick46ia, cmayna, Southerntruck, SNOYL, ShopRag, Mike Roache),
45
guests, and
1
robot. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,006 Posts1,055,271 Members48,418 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2008 Posts: 4,960 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,960 | If everything is right, you shouldn't be losing any noticeable amount of coolant. A 50/50 mix should have a pretty high boiling. How full are you filling it. If you over fill them, they will burp out the amount you overfill them. GMC had a petcock about halfway up the top tank as a fill level. Other than that, I would suspect a leak into the combustion chamber as Denny explained. | | |
|
|
| |
