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Problems Installing New OEM Radiator - clearance issues

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Old Apr 6, 2019 | 07:07 PM
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Default Problems Installing New OEM Radiator - clearance issues

I am almost finished installing a replacement radiator in my vette. However, I've come across a really strange issue and can't seem to find any resources that explain what to do to fix the issue.

I have just put the new radiator into the car and attempting to connect the condenser to the radiator via the 4 hooks and metal brackets/tabs. The issue I'm having is that even though the radiator and condenser are aligned properly I am unable to get the passenger side tab into the hook due to the AC line that runs at the bottom of the condenser (it's literally blocking me from sliding the condenser into the hooks which are on the radiator itself. I'm at a complete loss for what to do next. Even though I'm using a factory supplied part it just appears as if the line is not able to fit there without modification of sorts. I cannot find any resource that explains what to do in this scenario and I'm really at a loss for what to do.

I've heard this is a challenge and all but I'm literally approaching day 4 and about 18 or so hours of work for a simple radiator replacement.

Any tips or suggestions would be greatly appreciated!





Last edited by mountain51; Apr 6, 2019 at 07:09 PM.
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Old Apr 7, 2019 | 02:19 PM
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who is your radiator manufacturer? and where did you purchase it from? try contacting the vendor for tech support help.
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Old Apr 7, 2019 | 06:06 PM
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AC Delco OEM, purchased through RockAuto.com The part number matches the original equipment that was on the vehicle as well as the GM supplied part number (#15145946). Not sure where to go from here. The vendor doesn't offer any tech support and I'm outside the 30 day return period because I wasn't able to find time to do the install until about 5 weeks after purchase. Really scratching my head on this one.
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Old Apr 7, 2019 | 09:38 PM
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I think you've got three options:

1. depressurize the A/C, disconnect the refrigerant line, install the condenser, reconnect the line, recharge the A/C
2. shorten the plastic tab with a fine saw until you can just get the condenser to slide in
3. buy a DeWitt's

Given where you are I'd go with option 2. The condenser should be pretty secure with three and a half tabs holding it in place.
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Old Apr 8, 2019 | 01:16 AM
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I think you have the wrong years rad for your app. That being said you could have paid less for a better rad. Had you got a DeWitts
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Old Apr 8, 2019 | 09:24 PM
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I recall doing some cutting on the mount. Don’t be afraid to trim until it fits and don’t think about it again.

I know the pain.... a radiator replacement in most cars is a few hours tops. Not this car.
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Old Apr 16, 2019 | 10:10 AM
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Originally Posted by jonjoy
I think you have the wrong years rad for your app. That being said you could have paid less for a better rad. Had you got a DeWitts
Where can I find this deal on a DeWitts for $260?
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Old Apr 17, 2019 | 01:08 AM
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Well I guess you got a deal somewhere? Have not heard of an own rad for 260 to bad it doesn't fit.
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Old May 7, 2019 | 11:05 AM
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Originally Posted by mountain51
I am almost finished installing a replacement radiator in my vette. However, I've come across a really strange issue and can't seem to find any resources that explain what to do to fix the issue.

I have just put the new radiator into the car and attempting to connect the condenser to the radiator via the 4 hooks and metal brackets/tabs. The issue I'm having is that even though the radiator and condenser are aligned properly I am unable to get the passenger side tab into the hook due to the AC line that runs at the bottom of the condenser (it's literally blocking me from sliding the condenser into the hooks which are on the radiator itself. I'm at a complete loss for what to do next. Even though I'm using a factory supplied part it just appears as if the line is not able to fit there without modification of sorts. I cannot find any resource that explains what to do in this scenario and I'm really at a loss for what to do.

I've heard this is a challenge and all but I'm literally approaching day 4 and about 18 or so hours of work for a simple radiator replacement.

Any tips or suggestions would be greatly appreciated!




I ran into same problem Sunday while putting in new radiator in my 05 Z51. Pass rad lower tab would absolutely NOT allow condenser to drop in. After around 2 hours and every possible option exhausted I just cut the lower pass plastic tab off the radiator. I did buy OEM replacement and part numbers are correct. It appeared that the aluminum ear on the condenser had warped over time from heat I suppose.
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Old May 7, 2019 | 12:50 PM
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I replaced my radiator a couple weeks ago with a DeWitts and had the same problem. I cut the tab about half way down and was able to get the condenser on. Major pain in the butt though. Disclaimer; No swear words were spoken around minors during the process. But only because there were no minors around.
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Old May 7, 2019 | 08:30 PM
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I put in a spectra which was 1inch core, broke the tav half way and pushed it in place
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Old May 8, 2019 | 04:04 PM
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Yes, just cut or snap the tab.

the AC Line is the issue.

the ac cond is only 2-4lbs?, not worth the recharge to get it to fit.
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