Daewoo Nubira. Manual — part 140

1D – 14

I

ENGINE COOLING

DAEWOO V–121 BL4

5. Remove the surge tank attaching bolt.
6. Remove the surge tank from the support mount.
7. Clean the inside and the outside of the surge tank

and the surge tank cap with soap and water.

8. Rinse the surge tank and the cap thoroughly.

Installation Procedure

1. Install the surge tank to the support mount.
2. Secure the surge tank with the attaching bolt.

Tighten

Tighten the surge tank attaching bolt to 4 N

S

m (35

lbin).

3. Connect the return hose and the throttle body hose

to the top of the surge tank.

4. Connect the feed hose to the bottom of the surge

tank.

5. Secure the return hose, the throttle body hose, and

the feed hose to the surge tank with the hose
clamps.

6. Fill the surge tank with the coolant to the center

ridge, or to the MAX mark.

ENGINE COOLING 1D – 15

DAEWOO V–121 BL4

RADIATOR

Removal Procedure

1. Disconnect the negative battery cable.
2. Drain the engine cooling system. Refer to ”Draining

and Refilling the Cooling System” in this section.

3. Remove the main and the auxiliary cooling fans.

Refer to”Electric Cooling Fan – Main or Auxiliary” in
this section.

4. Remove the lower radiator hose clamp.
5. Disconnect the lower radiator hose from the radia-

tor.

6. Remove the upper radiator hose clamp.
7. Disconnect the upper radiator hose from the radia-

tor.

8. Remove the hose clamp from the surge tank hose

at the radiator.

9. Disconnect the surge tank hose from the radiator.
10. Disconnect the transaxle fluid cooler pipes from the

lower radiator tank, if equipped.

11. Remove the bolt and the transaxle pipe support

clamp from the radiator.

12. Remove the left upper radiator retaining bolt.
13. Remove the left upper radiator retaining bracket.

14. Remove the right upper radiator retaining bolt.
15. Remove the right upper radiator retaining bracket.
16. Remove the radiator from the vehicle.

Important : The radiator still contains a substantial
amount of coolant. Drain the remainder of the coolant from
the radiator into a drain pan.

1D – 16

I

ENGINE COOLING

DAEWOO V–121 BL4

Installation Procedure

1. Set the radiator into place in the vehicle with the

radiator bottom posts in the rubber shock bumpers.

2. Position the radiator retainers in place.
3. Install the right upper radiator retainer bracket.
4. Install the right upper radiator retaining bolt.

Tighten

Tighten the right upper radiator retaining bolt to 4 N

S

m

(35 lb–in).

5. Install the left upper radiator retainer bracket.
6. Install the left upper radiator retaining bolt.

Tighten

Tighten the left upper radiator retaining bolt to 4 N

S

m

(35 lb–in).

ENGINE COOLING 1D – 17

DAEWOO V–121 BL4

7. Connect the transaxle cooler pipes to the lower ra-

diator tank, if equipped.

8. Install the transaxle pipe and support clamp to the

radiator with a bolt.

9. Connect the surge tank hose to the radiator.
10. Secure the surge tank hose with a hose clamp.
11. Connect the upper radiator hose and the lower ra-

diator hose to the radiator.

12. Secure each hose with a hose clamp.
13. Install the main and the auxiliary cooling fans. Refer

to ”Electric Cooling Fan – Main or Auxiliary” in this
section.

14. Refill the engine cooling system. Refer to ”Draining

and Refilling the Cooling System” in this section.

15. Connect the negative battery cable.

ENGINE COOLANT TEMPERATURE
SENSOR

Removal Procedure

1. Disconnect the negative battery cable.
2. Drain the coolant to a level below the engine cool-

ant temperature sensor.

3. Disconnect the electrical connector from the engine

coolant temperature sensor.

4. Remove the temperature sensor from the exhaust

gas recirculation (EGR) valve mounting adapter.

Installation Procedure

1. Install the engine coolant temperature sensor into

the threaded hole in the EGR valve mounting
adapter.

Tighten

Tighten the engine coolant temperature sensor (2.0L
DOHC) to 10 N

S

m (89 lb–in).

2. Connect the electrical connector to the engine cool-

ant temperature sensor.

3. Refill the engine cooling system. Refer to ”Draining

and Refilling the Cooling System” in this section.

4. Connect the negative battery cable.