Cracked coolant reservoir?
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 766
Likes: 0
From: Mooresville NC
Cracked coolant reservoir?
Anyone had this problem? I notice it leaks from where the small coolant hose goes into the top of the reservoir. I tried two different clamps, cut the hose, retightened, and it still leaks...I'm guessing the nipple is cracked. Anyone else? Looks like a straightforward replacement...
Racer
Joined: Jan 2005
Posts: 375
Likes: 0
From: Montreal Drive it like you test it !
It append to my friend 99. I replaced the tank in less than 30 minutes. $90 CDN.
1- Drain the cooling system. (You may skip that step, but that will spill in the engine bay.)
2- Remove the surge tank hose clamps
3- Remove the hoses at the surge tank
4- Remove the sure tank nuts. You do not need to remove completely the lower left bolt. Just loose it and you will be able to lift the thank.
5- Remove the surge tank.
Follow this process to add dexcool to make sure there is not air.
Drain and Fill procedure
1. Park the vehicle on a level surface.
2. Follow the steps below to remove the radiator sure tank fill cap :
a. Slowly rotate the cap counterclockwise.
b. Stop and allow the hissing to stop.
c. After all hissing stop, continue turning counterclockwise to remove the cap.
3. Opens the radiator drain ****. (It looks like a white plastic plug below the lower radiator hose. You can see it if your car is jack and you are under it). note. There are two types of drain plugs. On my 97 I can turn it with pliers. But on most recent vettes, there is a square hole in the middle. You need a ¼ ratchet extension to turn it. I found it out on changing the dexcool on my friend 2004 Z06. If this is the case, do not turn more than ¼ of a turn or you will break the plug. When I changed his, I turned for ¼ and the dexcool did not leak. I used a flat bled screw driver to gently pull the plug.
4. Allow the system to drain completely.
5. Inspect the engine coolant:
-Discolored – Follow the flush procedure below
-Normal in appearance –continue the next step
6. Close the radiator drain ****.
7. Fill the system through the radiator surge tank opening up to the base of the neck.
8. Start the engine.
9. Idle engine for 1 minute.
10. Install radiator surge tank cap.
11. Cycle the RPM, idle to 3000 for 30 seconds intervals until engine coolant reaches 210 F.
12. Shut off the engine.
13. Refer to step 3 above to remove the radiator surge tank cap.
14. Start the engine.
15. Idle engine for 1 minute and fill surge tank to ½ above COLD Full mark on the radiator surge tank.
16. Install the radiator surge tank cap.
17. Cycle the RMP, idle to 3000 in 30 seconds intervals until engine coolant reaches 210 F.
18. Shut off the engine.
19. Top off coolant as necessary, to ½ above COLD Full mark on the radiator surge tank.
20. Rinse away any excess coolant from the engine and the compartment.
21. Inspect the concentration of the coolant.
Flush Procedure.
1. Block the drive wheels.
2. Place the transmission in Park or Neutral
3. Press the parking brake.
4. Run the engine until the thermostat opens.
5. Stop the engine
6. Follow the drain and fill procedure using water until the fluid is nearly colorless. Refer to Draining and Filling Cooling System.
7. Fill the cooling system. Refer to Draining and filling cooling system.
1- Drain the cooling system. (You may skip that step, but that will spill in the engine bay.)
2- Remove the surge tank hose clamps
3- Remove the hoses at the surge tank
4- Remove the sure tank nuts. You do not need to remove completely the lower left bolt. Just loose it and you will be able to lift the thank.
5- Remove the surge tank.
Follow this process to add dexcool to make sure there is not air.
Drain and Fill procedure
1. Park the vehicle on a level surface.
2. Follow the steps below to remove the radiator sure tank fill cap :
a. Slowly rotate the cap counterclockwise.
b. Stop and allow the hissing to stop.
c. After all hissing stop, continue turning counterclockwise to remove the cap.
3. Opens the radiator drain ****. (It looks like a white plastic plug below the lower radiator hose. You can see it if your car is jack and you are under it). note. There are two types of drain plugs. On my 97 I can turn it with pliers. But on most recent vettes, there is a square hole in the middle. You need a ¼ ratchet extension to turn it. I found it out on changing the dexcool on my friend 2004 Z06. If this is the case, do not turn more than ¼ of a turn or you will break the plug. When I changed his, I turned for ¼ and the dexcool did not leak. I used a flat bled screw driver to gently pull the plug.
4. Allow the system to drain completely.
5. Inspect the engine coolant:
-Discolored – Follow the flush procedure below
-Normal in appearance –continue the next step
6. Close the radiator drain ****.
7. Fill the system through the radiator surge tank opening up to the base of the neck.
8. Start the engine.
9. Idle engine for 1 minute.
10. Install radiator surge tank cap.
11. Cycle the RPM, idle to 3000 for 30 seconds intervals until engine coolant reaches 210 F.
12. Shut off the engine.
13. Refer to step 3 above to remove the radiator surge tank cap.
14. Start the engine.
15. Idle engine for 1 minute and fill surge tank to ½ above COLD Full mark on the radiator surge tank.
16. Install the radiator surge tank cap.
17. Cycle the RMP, idle to 3000 in 30 seconds intervals until engine coolant reaches 210 F.
18. Shut off the engine.
19. Top off coolant as necessary, to ½ above COLD Full mark on the radiator surge tank.
20. Rinse away any excess coolant from the engine and the compartment.
21. Inspect the concentration of the coolant.
Flush Procedure.
1. Block the drive wheels.
2. Place the transmission in Park or Neutral
3. Press the parking brake.
4. Run the engine until the thermostat opens.
5. Stop the engine
6. Follow the drain and fill procedure using water until the fluid is nearly colorless. Refer to Draining and Filling Cooling System.
7. Fill the cooling system. Refer to Draining and filling cooling system.
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 766
Likes: 0
From: Mooresville NC
Groovy, thanks for the info!
When I bleed the LS1 though, I typically take that small hose off of the coolant line in front of the intake manifold and fill the coolant system until coolant comes out of that hard line.
When I bleed the LS1 though, I typically take that small hose off of the coolant line in front of the intake manifold and fill the coolant system until coolant comes out of that hard line.
