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"DIY" Do it yourself/how to Post your "DIY/how to" on here for 7TH Gen. All posts are subject to review and should only be used as a reference and NOT as a substitute for professional repair/service

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Old 06-09-2009, 03:54 PM   #1 (permalink)
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Talking Radiator Replacement Visual Walkthrough

Hey guys I’m going to show y’all how I replace my radiator for a 2002 Chevy Impala 3.8. Also where are some parts like the coolant level sensor, water reservoir, and so on. Okay there are some things you need to know about your radiator “from experience with this issue b/c of time consuming” make sure you know the size of the radiator core from ½ inch to 1 inch make sure y’all know for sure. I hope that anything I did helps someone like me before a lot of people gave me good advice. THANK YOU CHEVY LOVERS I’M JUST TRYING HELP JUST LIKE THIS FORUM DID ME. 


Parts you need for this project are:
New Radiator
Radiator Cap
“if needed “New thermostat
“ “coolant level sensor
“ “ New Radiator hoses
“ “ Fans
It all depends if you want to change this things while you’re doing this and it’s at your easiest reach.

Tools you need for this project are:
Set of ratchet and sockets
Philips & flat head screw drivers
Pair of pliers


First disconnect negative from battery than empty fluids from radiator don’t forget to dispose of them the right way. Then remove the left & right front fender upper brace.

After that remove bottom hose from radiator with pliers. Make sure you don’t bother trans cooler lines.


Remove reservoir and disconnect small hose on radiator.


Next unplug coolant level sensor with flat head screw driver.


Remove battery and remove the plate were battery sits.


Unplug small connection and loose up the big clamp. Unscrew two bolts to take air compartment of without taking the air filter off. Do not disconnect pmc computer inside the air compartment just pull it out and move it so you can take off the back of air compartment.


After pulling carefully the pcm computer move to side and pop up the air compartment like this.


This is the pcm computer and remember don’t unplug anything just move it away so you have room for radiator and fan together to come out.


Pop clips that hold the wires from the pcm computer.


Remove plastic cover if desired just twist oil handle pop out and take cover out, put back oil handle.



Remove thermostat hose also disconnected from radiator too.



Remove visible bolts and were my fingers are at.



Remove aluminum bolts on both side and take support out. Once they are out put the pieces on both sides where the aluminum bots go to.




Next you’re going to take off the wire retainers on the fan shroud so you can move them out the way. Unplug the connections to the fan and make sure you know were right and left connections go to on fan. Move wire connection out the way.



With flat screw driver remove clip from coolant level sensor and make sure all hoses are removed. Then on trans cooler lines carefully unloose with ¾ combination wrench till you can take off with hand and move away carefully.





Unscrew top right and left insulator after removal and after removal they look like this.





After all of the instructions above the radiator is going to be loose just like a kids baby tooth ready to come out. Slowly push radiator towards motor like a 15 degree angle towards motor and pull up nice and slow, easy does it. Radiator and fan came off perfect.



After removal of radiator with fan find the coolant level sensor and remove with flat head screw driver.



Inspect new radiator to old radiator. Make sure that they are the same size of core as old one. On my new radiator I had new nipples for the trans cooler lines if they are bigger or smaller change them to the new ones.





Take both screws off the fan and take the clip off too so you can take fan off old radiator. On coolant level sensor put the same one or replace coolant level sensor. Put back fan to the new radiator and put the clip back. Put bottom rubber insulators or replace them. If they keep falling off put tape around nipples and put back.








Take your time and put back radiator, carefully try not to hit it too much. Then put back trans cooler lines top and bottom very carefully nice and easy. Put bottom radiator hose to new radiator.





Reconnect coolant level sensor connection to coolant level sensor. Secure fan wires back to fan shroud and plug back the fan. If you have fan covers put back on.




Connect the hose back on thermostat and radiator. Put the pcm back inside air compartment and put back air filter case. Put back screws and tight up big clamp. Connect small plug back to its place.






Take off aluminum nut and bolt again and put brace back and put the 4 bolts again and push motor with hand at the same time your trying to put aluminum bots back to motor rack. Same on other side and here’s 2 more clear pictures. Twist oil handle and put back the cover.






Put back plate and battery DO NOT CONNECT YET. Put water reservoir back. Tight bolts. Connect reservoir hose to radiator.





Tight the bolts back upper left and right sides. Put back right fender upper brace and left upper brace. Refill car with proper fluids. Connect Battery.





AND VOILA….THE END









CONGRATULATIONS I HOPE THAT THIS HELPS YOU IN ANY WAY POSSIBLE. SINCE I DID MY RADIATOR MY CAR HAS BEEN GGGGGGGRRRRRRRRRRRREEEEEEEEEEEAAAAAAAAAAAATTT.

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My Mama says that alligators are ornery because they got all them teeth and no toothbrush.

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Old 06-09-2009, 04:13 PM   #2 (permalink)
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just a couple notes --- the thing you're calling the temp sensor is really the coolant level sensor, and I'm recommending that it is replaced when you replace the radiator. Its a common problem part and fairly inexpensive. You can get to it really easy by taking out the Passenger side head lamp assy.

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Old 06-09-2009, 06:29 PM   #3 (permalink)
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Very nice write up!!

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Old 06-10-2009, 05:36 AM   #4 (permalink)
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Quote:
Originally Posted by capricewiz View Post
just a couple notes --- the thing you're calling the temp sensor is really the coolant level sensor, and I'm recommending that it is replaced when you replace the radiator. Its a common problem part and fairly inexpensive. You can get to it really easy by taking out the Passenger side head lamp assy.
sorry about that must edit to make it right.:eek: but like I said it all depends on the persons choice mine was change a day prior to radiator replacement also the thermostat and so on. Thanks for the look out on the wrong part name..:eek: I just edited hope its better now:redface:

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My Mama says that alligators are ornery because they got all them teeth and no toothbrush.

Last edited by lalinzki; 06-10-2009 at 06:02 AM..
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Old 06-10-2009, 09:15 AM   #5 (permalink)
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Cool :smile:

Quote:
Originally Posted by Danny_Boy View Post
Very nice write up!!

Thank you it meas a lot me since that was my first time ever doing the radiator. I have a camera just for the projects I'm going to take on and taking pictures and posting them too. I'm going to be posting stuff like all the time like this so who ever needs help at least there pictures on them so they won't get lost. I LOVE THIS FORUM. THANKS CHEVY LOVERS

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My Mama says that alligators are ornery because they got all them teeth and no toothbrush.

Last edited by lalinzki; 06-10-2009 at 09:25 AM..
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Old 06-10-2009, 09:51 AM   #6 (permalink)
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Excellent write up. Its good to see people take the time to do something like that for others.

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Old 06-10-2009, 10:23 AM   #7 (permalink)
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Good job on the walk thru and great job on the radiator change!

I saw someone else congratulate you on a job well done and I'd like to second that. You saved yourself a schload of money but more importantly, you learned how to figure out how to fix something yourself!


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Old 06-10-2009, 04:45 PM   #8 (permalink)
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Smile

If it wasn't for this forum and all the advice everyone gave me I wouldn't have the knowledge of doing it right and I would of mess it up worst than it was..I LOVE THIS FORUMS AS I LOVE CHEVY. I just wish I would of known about this because I would of post when I change the fuel pump twice but I just may take pictures and just do it again.. it never hurts..lol..THANKS CHEVY LOVERS

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Old 06-11-2009, 06:19 AM   #9 (permalink)
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great write up!

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Old 07-21-2009, 03:59 AM   #10 (permalink)
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Talking You save my life!

I am from montreal canada and with those instructions you save me a lot of toubles and time for removing the radiator on my impala 2003

Thanks a lot!

Impaladino

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Old 10-17-2009, 06:11 AM   #11 (permalink)
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I'm glad

Very glad to see my post still working and helping people in any way..VERY GLAD this is all I wanted from the project...THANK YOU..CHEVY LOVERS

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Old 10-19-2009, 11:23 AM   #12 (permalink)
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good job you get an A+++++ for your work sir

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Old 11-02-2010, 05:26 PM   #13 (permalink)
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thanks for the walk thru.
it helped me greatly.

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Old 01-21-2011, 03:01 PM   #14 (permalink)
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Great article! Thanks a lot! The only thing I might add to your process is to flush the cooling system before starting the R&R.

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Old 02-15-2011, 10:45 AM   #15 (permalink)
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I just wanted to post up a Quick Thanks to lalinzki & Impalaforums for this thread. I had to replace my radiator yesterday and this was very helpful!

Thank You!

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