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I found an image from 8 years ago. I was replacing all my interior carpet when I got the not-so-bright idea to replace the heater core (not leaking) in my 94 at the same time. -Yes; you have to disassemble the dash to gain good access for removal and replacement of the heater core. My notes show I did this over two full weekends. the flash backs still haunt me. For those of you with a sharp eye, I found cracks and a hole in each side of the floor boards...so I ground out the cracks and re-glassed the floor board corners. That was another weekend. In total I spent four weekends working on the interior of the blue beast....and a couple of sixers of Shinerbock Yes-I did get it all back together...nothing left over.
I did that to my previous C5, removed the dash and center console to replace the HUD unit. Looked like a grenade went off inside the car, but I got it all back together and didn't even have one screw leftover.
From my memory the hardest part was not to break any of the plastic bits during disassembly and assembly
This will forever and always be the tragic downfall of the C4 IMO
Nothing quite as heartbreaking as to have a little mundane piece of plastic snap that no one will really ever know broke except you while you painstakingly attend to the every detail of some C4 project....
I'm sure this is going to be unpopular, but doing a heater core in a C4 isn't really any worse than doing them in most other GM vehicles. In fact, it pales in comparison to doing it in a Volvo 240. It's certainly not a fun or easy job, but in perspective it's not nearly the nightmare fuel that some folks are making it out to be.
Love the pics guys. Remember the first time you had your cars insides completely apart and then something comes up and you get pulled away from the project and 3 weeks later you return .....brief moment of wtf....slow, steady, all possible.
Originally Posted by yakmastermax
This will forever and always be the tragic downfall of the C4 IMO
Nothing quite as heartbreaking as to have a little mundane piece of plastic snap that no one will really ever know broke except you while you painstakingly attend to the every detail of some C4 project....
Love it!!
soldering iron and plastic weld. in the beginning i stole pieces of my kids lego as sacrificial abs. Then i grabbed a piece of scrap abs pipe and i take a chunk off it as needed. Then i started using zip straps. need the big pistol grip gun style to do this, the pen style don't get hot enough and take forever. when you melt the replacement abs into the oem abs part and mix them up the bond is permanent.
im curious how the epoxy holds up in terms of adhesion to the abs.
Originally Posted by convas
From my memory the hardest part was not to break any of the plastic bits during disassembly and assembly
agree, the more i do, the less i break. but one wrong move on re-assembly and 'crack'!
Originally Posted by Kilobuck84
I'm sure this is going to be unpopular, but doing a heater core in a C4 isn't really any worse than doing them in most other GM vehicles. In fact, it pales in comparison to doing it in a Volvo 240. It's certainly not a fun or easy job, but in perspective it's not nearly the nightmare fuel that some folks are making it out to be.
ive only done them early cars. i have to agree. not that tough BUT you need the right tools and assortment of 1/4 drive kibbles and bits. im not ashamed to say that the blind screw at the top has been left out of all of mine. i reach up with a small piece of silver aluminum "duct tape" and i use that instead. zero adverse effect doing this so far.
Love the pics guys. Remember the first time you had your cars insides completely apart and then something comes up and you get pulled away from the project and 3 weeks later you return .....brief moment of wtf....slow, steady, all possible.
I gutted my C4 and then walked away for 7 months. It has absolutely been a struggle remembering all the mini-projects I had going on.
I'm sure this is going to be unpopular, but doing a heater core in a C4 isn't really any worse than doing them in most other GM vehicles. In fact, it pales in comparison to doing it in a Volvo 240. It's certainly not a fun or easy job, but in perspective it's not nearly the nightmare fuel that some folks are making it out to be.
I agree. I replaced my 95. Not too bad. My Ford Expedition was worse!
Not for those with a weak heart.
For those of you with a sharp eye, I found cracks and a hole in each side of the floor boards...so I ground out the cracks and re-glassed the floor board corners. That was another weekend. In total I spent four weekends working on the interior of the blue beast....and a couple of sixers of Shinerbock 
Yes-I did get it all back together...nothing left over. 
