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Engine Cooling System (Qr): Maintenance Nissan Frontier D40

Cooling Fan 5 illustrations ~336 words

FLUSHING COOLING SYSTEM

  1. Fill the radiator from the filler cap above the radiator upper hose and reservoir tank, with water and reinstall the filler cap above the radiator upper hose.
  2. Run the engine until it reaches normal operating temperature.
  3. Press the engine accelerator two or three times under no-load.
  4. Stop the engine and wait until it cools down.
  5. Drain the water.
  6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.

Scheme 13

Fig. 15: Identifying Radiator Components With Torque Specifications
Scheme 15: Identifying Radiator Components With Torque Specifications
WARNINGDo not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.

Scheme 14

Scheme 14: REMOVAL
Scheme 14: REMOVAL

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17
  1. Drain engine coolant from radiator. Refer to " «DRAINING ENGINE COOLANT»(ref-272341-S41477433912007111800000) ". CAUTION: Perform this step when engine is cold. Do not spill engine coolant on drive belts.
  2. Remove air duct, air duct brackets and air cleaner case assembly. Refer to " «REMOVAL»(ref-272352-S24758799732007111800000) ".
  3. Remove reservoir tank hose.
  4. Removal (upper and lower) radiator hoses. CAUTION: Be careful not to allow engine coolant to contact drive belts.
  5. Remove radiator cooling fan assembly. Refer to " «COOLING FAN»(ref-272341-S13738032742007111800000) ".
  6. Disconnect A/T fluid cooler hoses. (A/T models) Install blind plug to avoid leakage of A/T fluid.
  7. Remove the upper mount bracket bolts. see scheme 16: Identifying Upper Mount Bracket Bolts
  8. Remove the two A/C condenser bolts. (if equipped) see scheme 17: Identifying A/C Condenser Bolts
  9. Remove radiator as follows: CAUTION: Do not damage or scratch A/C condenser and radiator core when removing. With lifting and pulling radiator in a rear direction, disassemble lower mount from radiator core support center. CAUTION: Because A/C condenser is onto the front-lower portion of radiator, moving to rear direction should be at minimum. (Scheme 13): Disassembling Lower Mount From Radiator Core Support Center Lift A/C condenser up and remove radiator after disengaging the fitting as front-bottom surface. CAUTION: Lifting A/C condenser should be minimum to prevent a load to A/C piping. After removing radiator, put A/C condenser on radiator core support center to prevent a load to A/C piping, and temporarily secure it with rope or by similar means. (Scheme 14): Lifting A/C Condenser

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