2022 Buick Encore 1.4L

Thermostat

You change the thermostat by unbolting the housing. Get the hose off first. AWD and FWD use the same job. An Encore GX is a different truck.

Quick answer

Hose off, then two bolts

  • Thermostat for this 1.4L. No part number is given.
  • Drain the coolant before you loosen anything.
  • Pull the lower radiator hose off the housing.
  • Two bolts. Tighten them to 10 N·m (89 lb in).
  • Use a new gasket.

Factory page: Engine Coolant Thermostat Housing Replacement. Drawing GM4248011. Same page in the AWD book and the FWD book.

Get the lower hose off

Do this before the housing bolts.

  1. Drain the coolant.

    Cooling system draining and filling is its own job.

  2. Take the air cleaner off.
    Air cleaner, callout 1

    Air Cleaner Assembly Replacement, callout 1. Drawing GM4090778.

  3. Take off the hose that feeds the charge-air cooler.
    Charge-air cooler inlet hose, callout 2

    Charge Air Cooler Inlet Air Hose Replacement, callout 2. Drawing GM4113279.

  4. At the radiator, open the lower hose clamp with hose-clamp pliers and slide it back.
    Lower hose clamp at the radiator, callout 1

    Radiator outlet hose clamp, callout 1. Tool BO-38185. Drawing GM4116829.

  5. Pull the lower hose off the radiator.

    Radiator outlet hose, callout 2.

  6. At the engine, open the other clamp with the same pliers.
    Lower hose clamp at the engine, callout 1

    Callout 1. Tool BO-38185. Drawing GM4116815.

  7. Pull the hose off the engine.

    Radiator outlet hose, callout 2.

  8. Lift the hose out.

Then the housing

Thermostat housing, three callouts

Drawing GM4248011.

  1. The lower hose is already off the housing.
  2. Remove the two housing bolts. When they go back on, tighten them to 10 N·m (89 lb in).

    Engine Coolant Thermostat Housing Bolt, callout 1, quantity 2. Fastener caution.

  3. Use a new gasket.

    A new gasket

    Engine Coolant Thermostat Housing Gasket, callout 2.

  4. The housing is the part that comes off.

    Engine Coolant Thermostat Housing, callout 3.

Parts

Leave these for another page

  • Checking whether the thermostat is bad. That chart sends you here if it needs replacing.
  • The bypass hose.
  • The bypass pipe.

Thermostat Diagnosis. Thermostat Bypass Hose Replacement (LE2). Thermostat Bypass Pipe Replacement (LE2).

Not in the manual

No part number.

No step for pulling a thermostat out of the housing.