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Old Oct 23, 2007 | 01:23 PM
  #1  
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Can someone please tell me the location of the radiator screw that lets all the water & antifreeze mix out, so I can add a new mix 50/50 mix of water and coolant? It's a 1996 LT1 thanks.

Pictures would be nice



Oh, and still having gauge issues just didn't want to have to many threads.
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Old Oct 23, 2007 | 01:51 PM
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Drain plug is located bottom, passenger side, facing engine.
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Old Oct 23, 2007 | 01:55 PM
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On an LT1 you will also need to remove both knock sensors to drain the block, center of each side of engine below exhaust manifolds.
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Old Oct 23, 2007 | 03:39 PM
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Thanks guys.
I know i'm such a noob sorry...

So the drain plug is on the passenger side somewhere under the seat or more towards the engine?

And there are two more drains underneath, one underneath each intake manifold?

And do I need to get underneath the car to perform both of these tasks? Or can I just reach down and do it?

Thanks!
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Old Oct 23, 2007 | 03:50 PM
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I just had the antifreeze done on my LT-4 at the dealer.

After I thought about it, I figured it was worth it as is was inexpensive and would be done right with the right materials. Coolant changing is a mess, takes a while to clean up, and the coolant is very toxic to critters that drink it. It's sweet, and inevitably will spill all over the driveway or garage. I'm not crazy about the wife's dog, but she is, and I love my kitty.

JMHO.
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Old Oct 23, 2007 | 03:51 PM
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Originally Posted by kyrios
Thanks guys.
I know i'm such a noob sorry...

So the drain plug is on the passenger side somewhere under the seat or more towards the engine?

And there are two more drains underneath, one underneath each intake manifold?

And do I need to get underneath the car to perform both of these tasks? Or can I just reach down and do it?

Thanks!

I strongly recommend you find someone to help you
The drain is on the back side of the radiator on the pass side bottom of the radiator
As you are looking at the radiator from inside the car it would be bottom right
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Old Oct 23, 2007 | 04:17 PM
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Yeah, I guess I'll have a mechanic do it or have it done at the dealer. I'm just scared at how much the dealer is going to charge me.

I've already spent like $1k in parts not including labor to get this vette up and running and in good shape. Got a tune up done to it, new starter, 4 new discs and breaks, new rear hub bearing assembly (old one was broken, tire was wobbling) and a few other little stuff.

So I kinda wanted to do this myself, I just thought this would be something I could do, but I'm guessing not, lol. Thanks anyways guys.
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Old Oct 23, 2007 | 04:31 PM
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No NO NOOOOOO
No one especially me suggested a stealership
find someone on here local to you who will work for pizza
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Old Oct 23, 2007 | 04:36 PM
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I respect the desire to save some $ and do it yourself. My Chevy dealer charged me $99. That's not bad (for me) to have it done right and not get poison all over my driveway and garage. That price includes the coolant of course, so it's not a lot of money, but it depends on what your time is worth, and if you enjoy changing coolant or not.
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Old Oct 23, 2007 | 04:52 PM
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Oh boy, sounds like you need more than a little guidance. You really should start by picking up a factory service manual (also called a Helms). It has step by step detailed information on almost anything you need to do. Even when you have a pretty good idea of what you are doing the fsm will give you some of the querks that occur with specific models and/or the recommended sequence of taking things apart and putting them back together.

For one thing, after you drain the radiator system (the petcock is at the bottom of the radiator on the backside facing the engine) and refill it you need to "burp" the air out of the system. But first find and order a manual, search the forum of c4parts/wanted and/or ebay for one. And then learn to use the search function here on the forum. Search manuals for the website of brand new ones if you want immediately, and draining radiator for some pretty detailed information provided by forum members on previous posts. Some of these descriptions run several pages, so it is too much to repeat all of the details, but spending a few minutes on a search should turn up lots of info.
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Old Oct 23, 2007 | 05:30 PM
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Thanks for all the help.
The main reason why I wanted to do this was because, I refilled the tank with water, and I was concerned that my engine would overheat because of insufficient coolant. It has me worried because I thought it was overheating. I thought it was overheating because the temp gauge had gone all the way up to hot, but then (now referring back to my other thread) when I turned off the car and waited a long time like 6 hours, the temp gauge was in the same spot when I turned on the car ( same spot meaning, gauge being all the way to hot). So I thought i had an overheating problem but apparently there is something wrong with the car's gauges?... but now it get's interesting...

I turned it on in the morning and the temp gauge was in the same spot. But then I turn it on later and it seemed to have reset and started acting normally, so I thought. Well it doesn't because it the car temp gauge gets hotter when the car is idle, then cools off when i drive....

odd I know. Here is the link to my other thread in case you guys want to reply in there. So I'm guessing there is some type of gauge problem or something, at least I hope because I wouldn't want my car overheating. So how can I get this weird gauge issue resolved. Thanks again for all of your help, can't take u enough.

http://forums.corvetteforum.com/show....php?t=1844477

Last edited by kyrios; Oct 23, 2007 at 05:36 PM.
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Old Oct 23, 2007 | 05:57 PM
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What thebeerman siad about the FSM is good advice. Just keep in mind that the FSMs are model year specific and come in premilinary (white cover) and a final edition (red cover). Also your set will be two volumes.
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Old Oct 24, 2007 | 06:31 AM
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Just bought a 1996 Service Manual. from them.

http://www.factoryautomanuals.com/
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Old Oct 24, 2007 | 08:59 AM
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Find a local radiator shop that has the best reputation by asking around...usually one shop's name keeps popping up...that's what I did and they did a power flush using compressed air on my 93...then they refilled the cooling system to my specs...cost me $69.99 and they did it while I waited...
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Old Oct 30, 2007 | 05:46 PM
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I just had it done on my '94 at a Chevy Dealership and they charged me $63.95 which included the coolant. Like you I thought of doing it myself but after reviewing my service manual I elected to have someone else do it.
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