Checking your GMC Sierra for cooling development leaks is essential, whether you thirst to prolong its acceptable brio. Catching these leaks early can save you income and creation, in that an unchecked leak can explanation engine overheating or failure. One action to stay abreast of this poser is to inspect your popular parking compass for signs of leaks. But, there are finer methods and they're nearly as lucid.
Instructions
1. Airy the hood to examine the hoses, which connect the engine to the heater core and the radiator to the engine.2. Benefit a flashlight to inspect the radiator completely for any signs of a leak. Again, these signs are corrosion, discoloration or freshly leaked coolant. Inspect the bottom part of the radiator carefully, because rocks and road debris can damage the radiator during the normal course of operation.
The heater core on a GMC Sierra is endure the engine and near the windscreen. Proof for any bulging, cracking or splitting in the hoses too as any noticable signs of coolant leakage. These signs can grip the fashion of corrosion, discolouration or wet spots from advanced coolant.
3. Check the water pump and shaft seal for any possible signs of leakage. The water pump on a GMC Sierra is behind the engine fan and connects directly to the engine. The shaft seal is what secures the connection between the water pump and the engine block. Look for any corrosion or discoloration to confirm the source of the leakage.
4. Remove the radiator cap and add fresh coolant to the radiator to within an inch of overflowing. Be sure to touch the radiator to make sure it's cooled down before opening it. Never open a warm or hot radiator, as it can explode, spewing hot coolant over anyone in the area.
5. Start the engine of the GMC Sierra, set the heater to high and let it run for about Fifteen minutes. Next, switch off the engine of the GMC Sierra to inspect the water pump, shaft seal, radiator and hoses for leaks one more time. If you still can't locate a leak, it may be an internal cooling system problem and you need to take the SUV to a cooling system specialist for further diagnostics.
