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2005 chevy trailblazer_lt_ext
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Hi, my 2005 trailblazer hit something (the driver still claims it was a blowout, but once i saw damage and the rim I knew better) The radiator hose connector (?) was broken, the guy using my car said he replaced it. I noticed it overheating right after I got it back. It had coolant in the overflow, and immediately when I took radiator cap off, the coolant started filling the radiator. Took about three minutes to fill radiator up. So was thinking maybe the cap was shot, and messing up the pressure needed to recirculate fluid back into radiator. But before I could go any farther with that, another friend used my car and when it overheated, instead of running heater and letting it cool down so she could remove cap and get coolant into radiator, she sprayed down engine and radiator with cold water and flushed all of the Dexcool out of overflow. Upon getting my car back, I noticed the light coffee colored oil. So now am thinking the head gasket needs replaced? Onstar says to check the variable valve timing and also the emission system. Any idea what i need to check on the vvr and if it would cause overheating/water leaking into oil. Needless to say letting my "friends" borrow my car is over. I appreciate any and all input. Thanks.
 

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2006 chevy trailblazer_lt_ext
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Wow. I'm hoping that your "friends" are going to help cover the costs to repair the damage they caused? If not, I suggest new friends.
 

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2005 chevy
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:eek: That's some craziness right there. If your *ahem* "Friends" don't volunteer some funds to get your truck fixed, they need to volunteer to receive a beatdown! :hissy:

 
However, I do not condone the striking of women outside of self defense :nono:
 

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2005 chevy trailblazer_lt
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Besides the aforementioned, the motor was probably run hot - warped the heads - and the water is ruining the bearings as I type.

I don't know what the best course of action would be.
If you take the truck to a garage to have them check the old motor out - you'll rack up a bill just for them to tell you it's shot.
Maybe just get a motor from a salvage yard and replace it.

Perhaps I'm overlooking a bright side.
 

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2002 gmc envoy_slt
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Geesh...with friends like that, who needs enemies?!?! :nono:
 

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2003 chevy trailblazer_ls
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Blown Head gasket

My 03 TB over heated about 2 years ago due to a faulty radiator cap. It then over heated 4 times last year: twice in Nashville and twice in Atlanta. I replaced the thermostate and all was well. However, about 2 months ago I began noticing liquid dripping onto the garage floor. Was red in color and smelled like antifreeze. At first I did not think too much of it because it did not leak on a regular basis, and then it did. About two weeks ago I decided to track down the source.

I tracked it down to the head gasket. I was getting none of the signs of a blown head gasket (no water mixing with oil in engine or radiator). I pulled the heat shield and noticed some distinct burning on the exahaust manifold. I took a paper towel and rolled it up. I stuck one end between two of the pipes leading from the exhaust manifold and saw it "flapping." When I pulled it back, it was wet. I pulled the exhaust manifold to replace the gasket and noticed an area where liquid was leaking. I wiped the area down, cleaned the side of the engine, and the drip came back within seconds.

I determined the head gasket was blown even though I got none of the typical blown head gasket signs other than water leakage. I am not a mechanic by trade, but have had my fair share of engine rebuilds and head replacements and the such. I have done ALL my own automotive work since i was 15. The one time I allowed someone else do work for me, they messed up the job (I had to fix the repair).

Now that the background is finished, here is what I learned. If you have a blown head gasket, pay the bazillion dollars to have someone else do the work:duh:

I followed the haynes book to the T. However, I should have read it more closely to see how involved this process is. I have never, ever experienced head work that is this involved. Basically, I would have been better off pulling the engine and doing a rebuild. The hardest part of the whole process is getting the front cover off and having the J-44221 tool (keeps cam from rotating). The reason for this, is in order to get the front cover off, you MUST drop the oil pan. To get the oil pan off, you not only have to drop the "steering gear crossmemeber" but you must also drop the rack. Haynes tells you about the crossmember, but not the rack. Luckily, all you have to do is disconnect the line from the rack, pull the bolt from the short steering shaft, and pull the two mounting bolts from the frame to gear shaft. You can leave the rack attached to the knuckle on lower control arm. However, when pulling the pan, do not forget there are two bolts under the rubber fitting that is located between the bell housing and oil pan.

The other tough part is pulling the water pump. I attempted this following everything the Haynes dictated. I broke one strap wrench trying to remove the fan from the pump. In the end, I ended up pulling the radiator, the shroud, and the pump all at the same time.

I will be taking pics of the engine compartment and the underneath side and will post them. But do not attempt this job unless you have the time and several 10 millimeter sockets, along with a 15mm 13mm, and a 21 mm, along with a 10mm allen wrench. You will also need a LONG breaker bar. The short one comes in handy in some instances, but when pulling the head bolts and crank shaft pully, it is easier with a long breaker bar. Finally, most importantly, you need a good friend to help accomplish certain tasks.

Do not, I repeat, do not do the head gasket yourself unless you are a mechanic and have a shop. If you do tackle the job on your own, pull the engine and replace it. A local mechnic told me that the job I am doing would cost between $2,000 abd $3,000...one told me labor alone is about $1,200. So far, i have purchased $70 in tools (60 for the J-44221 tool). The gasket set will run me about $175 (could get it cheaper), shaving the head, inspection for cracks, and valve job will cost $225. I figure the job will cost me about $550 (includes replacing ALL the fluids) savings of $1,450...if I have I done everything correctly. :bonk:
 

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2005 chevy trailblazer_lt
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Hah - good to know.
If they would have really wanted to, could they have made the head pull off without all the shenanigans?

You say looking back, it may have been better to pay.
I just told one of my buddies that if I knew how involved half the stuff I do was, I wouldn't have done it. Ya just start - sometimes say 'oh crap, I wish I wouldn'ta done this' but have to finish it now!
 

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Hi, my 2005 trailblazer hit something (the driver still claims it was a blowout, but once i saw damage and the rim I knew better) The radiator hose connector (?) was broken, the guy using my car said he replaced it. I noticed it overheating right after I got it back. It had coolant in the overflow, and immediately when I took radiator cap off, the coolant started filling the radiator. Took about three minutes to fill radiator up. So was thinking maybe the cap was shot, and messing up the pressure needed to recirculate fluid back into radiator. But before I could go any farther with that, another friend used my car and when it overheated, instead of running heater and letting it cool down so she could remove cap and get coolant into radiator, she sprayed down engine and radiator with cold water and flushed all of the Dexcool out of overflow. Upon getting my car back, I noticed the light coffee colored oil. So now am thinking the head gasket needs replaced? Onstar says to check the variable valve timing and also the emission system. Any idea what i need to check on the vvr and if it would cause overheating/water leaking into oil. Needless to say letting my "friends" borrow my car is over. I appreciate any and all input. Thanks.
Holy ****. She did what. You definitely need to check out your head and gasket, however, if she sprayed your super hot motor with a hose I would be almost certain that your engine block may be cracked. At that point your coolant and oil can mix in all sorts of places. I assume you didn't make her pay for the damage. Instead of chasing demons all over your engine, head, and accessories. I would say pull the motor out. Use it to fill a hole somewhere. And go buy a used motor complete from a salvage yard. The hours it takes to get off some of the usually simple things on a engine. I.E. the valve cover, intake, exhaust manifold, and all the stupid sensors. Would take you twice as long as just swapping it out. Do you really want to pay to have a trailblazer head resurfaced? Check and clean all the pistons, change the timing belt/ chain. Go through the entire cooling system, and on and on. The time and money it would take you if you did it yourself would be more than a additional used trailblazer. And if you want to pay a shop. Once again. The value is not there. Sorry for your retarded friends. She may have just put oil in the overflow , and cold water in the oil. She sounds like a real top of the class gal. All she had to do was google it. The kids these days are even to stupid to think of that. But I bet she had time to take and post pictures of it. Just saying. ( Head down, shaking side to side) this is why all new cars will just plug in. The instructions will say to pretend it's a phone.
 

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2005 Chevy Trailblazer LS 4x4
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Holy ****. She did what. You definitely need to check out your head and gasket, however, if she sprayed your super hot motor with a hose I would be almost certain that your engine block may be cracked. At that point your coolant and oil can mix in all sorts of places. I assume you didn't make her pay for the damage. Instead of chasing demons all over your engine, head, and accessories. I would say pull the motor out. Use it to fill a hole somewhere. And go buy a used motor complete from a salvage yard. The hours it takes to get off some of the usually simple things on a engine. I.E. the valve cover, intake, exhaust manifold, and all the stupid sensors. Would take you twice as long as just swapping it out. Do you really want to pay to have a trailblazer head resurfaced? Check and clean all the pistons, change the timing belt/ chain. Go through the entire cooling system, and on and on. The time and money it would take you if you did it yourself would be more than a additional used trailblazer. And if you want to pay a shop. Once again. The value is not there. Sorry for your retarded friends. She may have just put oil in the overflow , and cold water in the oil. She sounds like a real top of the class gal. All she had to do was google it. The kids these days are even to stupid to think of that. But I bet she had time to take and post pictures of it. Just saying. ( Head down, shaking side to side) this is why all new cars will just plug in. The instructions will say to pretend it's a phone.
Just so you know, you resurrected a 10 year old thread - in case you don't get a quick reply from the OP.
 
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