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Old 11-27-2010, 09:04 PM   #1 (permalink)
04DmaxLLY
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antifreeze out the overflow

So last weekend when I came home I noticed that I was spewing antifreeze out of the overflow when my engine was still cold. So I did some research and did the quick and hopeful fix of thermostats, upper hose and radiator cap. I put it all back together and have driven it for about 50 miles. It hadn't gotten to the point of blowing back out the overflow, but this morning before I started it I slowly opened the radiator cap and I had bubbles coming up into the overflow and it spewed a little antifreeze from the overflow tube. So I believe that I have the head gasket problem. My truck doesn't even have 78,000 miles on it yet. Does anybody have any other suggestions before I tear it down, or some suggestions of what to do at the same time? I'm planning on studding it, blocking the EGR, and rerouting the PCV. I hate to pay $3000 dollars for labor on something that I can do myself. I just don't know if I should fix it now or try to make it through the winter.
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Old 11-28-2010, 05:18 AM   #2 (permalink)
ronjhall
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Most common test for head gaskets I have seen here on DP is, check to see if upper radiator hose is hard in the morning after cooling all night.
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Avg mileage over 67,000 miles 10.3 mpg.
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Old 11-28-2010, 11:19 AM   #3 (permalink)
04DmaxLLY
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That's what I did yesterday morning. I drove it quite a while the night before and I let it sit all night. The first thing I did yesterday morning was pop the hood and check the hose. It wasn't what I would consider rock hard, but I couldn't squeeze it together like I should have. I looked at my brothers 05 lly for comparison. After that I slowly let the pressure out of the radiator cap. The antifreeze came bubbling out of the overflow tube after it sat all night in 30 degree weather.
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Old 11-28-2010, 11:31 AM   #4 (permalink)
Shadow1
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Sure sounds like head gaskets.

You could buy a test kit at an auto parts store for further confirmation.

I would not drive the truck with bad head gaskets. You're asking for damage to the head-block mating surfaces.
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Old 11-28-2010, 11:57 AM   #5 (permalink)
04DmaxLLY
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I have a little car that I drive to and from work, but I use the truck almost every weekend. If we get snow, I'll need it for that too. It looks like I'm going to be seeing the Dmax internals. Does anyone have any suggestions for other things that I should do while I'm in it? Other than the studs, PCV reroute, and EGR blocker.
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Old 11-28-2010, 12:24 PM   #6 (permalink)
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Probably replace the water pump while you have it apart. Seems like 100k is the life of the pump!

Also the idler pulleys!
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Old 11-28-2010, 12:25 PM   #7 (permalink)
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Quote:
Originally Posted by 04DmaxLLY View Post
I have a little car that I drive to and from work, but I use the truck almost every weekend. If we get snow, I'll need it for that too. It looks like I'm going to be seeing the Dmax internals. Does anyone have any suggestions for other things that I should do while I'm in it? Other than the studs, PCV reroute, and EGR blocker.
LLY Turbo Mouthpiece.
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Avg mileage over 67,000 miles 10.3 mpg.
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Old 12-11-2010, 06:40 PM   #8 (permalink)
04DmaxLLY
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So far this job of changing the head gaskets has been a nightmare. When everything works like it should the job has been a cake walk, just a lot of pieces. However, my fan was stuck and we ended up using a chain wrench on the pulley, so now I have to fix that. My ladder slid out from under me on my garage floor when I was holding the air conditioner compressor in my hand and when I fell, I managed to hit the radiator. I can't tell if there is a crack in the radiator or not. That'll probably be the next thing I have to replace. I also have an injector that is stuck in the drivers side head, and I can't get the drivers side manifold off. I had one of the BD power manifold put on about 20,000 miles ago and now I can't get one of the bolts out of it. It is the one where the manifold is larger. I really wish my luck wasn't so bad.

Any ideas on the injector before I buy the $90 dollar tool?
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Old 12-15-2010, 08:10 PM   #9 (permalink)
04DmaxLLY
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I got a tool from a guy on ebay and I was attempting to get it out... and I broke the tool. Now I'm out of ideas unless I cut off the valve cover and beat the injector out from the head side. Is there any way that I can remove the head with an injector stuck in it? I don't think that I can without the lower valve cover removed. Any ideas would be appreciated.
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Old 12-29-2010, 10:03 PM   #10 (permalink)
04DmaxLLY
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I just got my heads back last night and I was talking to the shop owner (small time deal). He mentioned that he does about (1) set a week for the local gm dealer (Uehbelhor and Son in Jasper Indiana). I'm beginning to think that this whole head gasket thing is more common than most people realize and that age has more to do with it than anything else.

I had to cut off my drivers side valve cover and beat out the injector. I managed to save the head, but I need an injector, the injector bracket, and a drivers side valve cover. Any help would be appreciated.
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