Genuine Mazda 6 Thermostat

Mazda 6 Thermostat Parts and Q&A

• Thermostat
  GY01-15-171
  Q: How to disconnect the cable from the negative battery terminal and replace the thermostat on Mazda 6?

  A:

  First thing that has to be done is to disconnect the cable from the negative battery terminal. The cooling system must be emptied. You can save and reuse the coolant if it is new enough and still in good condition. To locate the thermostat housing, follow the lower radiator hose to the engine. Loosen up a hose clamp then detach a hose from a fitting. In case of sticking, take adjustable pliers when you're near the end of it, twist it so as to break this seal and then pull off. A worn out or rotten hose should be removed with an installation of another one in its place. Swapping hoses causes damage to already corroded, pitted or otherwise marred outer surface of thermostat housing cover that seals with them more than anything else. If yes, replace thermostat housing cover. For four-cylinder models remove engine drive belt and power steering pump. Remove bypass hose (if equipped) from thermostat housing. After loosening bolts on a thermostat house, remove it. Thermostat cannot be disassembled so you have to replace this whole unit along with associated house units. Battery tray and battery are pulled out on 3.7L V6 engines. Unfasten fasteners so as not to damage thermostat housing cover once it's detached from its place. If there's sticking at this point tap lightly using soft-face hammer until freeing occurs. The breaking of gasket seal causes some coolant spillage; therefore get ready for that too just in case your car requires such action before being operational again like check for leakage and reasonable operation of thermostat. After all these realize removal of o-ring then get rid of old thermostats also present inside flange areas devoid of dirt at all times within both mating sides; Check hoses flaws - if any replace them for new ones; Assemble manifold located on four-cylinder models followed by using molded gasket for the thermostat housing. Radiator hose should be reconnected, and then put on a housing and tightened the bolt. Heater hose must also be hooked up again. On V6 models insert thermostat with spring-end in and use the rubber gasket or O-ring to fix this problem before it worsens. Just ensure that jiggle valve is up at 12 o'clock when you finally finish with installing your thermostat. Put bolts back into their places and install cover of thermostat housing. Lower radiator hose can in such case be connected to its cover over thermostat housing. IF it is not still tight, replace it now; Refill cooling system by air bleeding system prior to starting engine till normal temperature has been reached; check leakage, right work of the thermostats.