Loose Coolant Reservoir Cap

Caps are designed to ensure that the prescribed pressure on the cooling system is maintained at all times during operation by allowing air to escape in case of overpressure.

Loose coolant reservoir cap.

Koauto engine coolant tank cap for 03 12 nissan murano 350z versa 21712 79900. Autokay coolant overflow reservoir tank cap radiator reservoir cap for nissan infiniti 21712 79900 yellow. System pressure is usually 14 or 15 psi. Coolant reservoirs are required because engines go through cycles of expelling and absorbing coolant as they warm up and cool down.

But they do a lot more than just that. In this case the coolant is more likely to be lost to boiling off than by simple evaporation. 4 8 out of 5 stars 44. Get it as soon as thu sep 24.

The radiator cap and expansion tank cap make sure the filling hole of the radiator and expansion tank are sealed off gastight. When the engine is cold the pressure of the cooling system is low and more coolant is required and. Coolant goes into the reservoir tank as it expands. If you have a bad radiator cap the coolant could get released too quickly and cause the reservoir to overflow.

Free shipping on your first order shipped by amazon. The coolant reservoir is the plastic reservoir mounted in the engine bay that stores the coolant for the engine. The radiator cap releases the extra pressure by sending some coolant into the overflow tank. While you re in there check to make sure your coolant overflow tank is working properly.

Start pumping air into the system until the tester gauge reads the system pressure as indicated on the radiator cap.