We carried out a coolant pressure test at 1Stop Motor Shop Mallusk and found a radiator leak. Here’s how our diagnostics help Newtownabbey drivers avoid overheating and costly repairs.
This car came into 1Stop Motor Shop Mallusk with coolant loss and overheating issues. To locate the cause, our team carried out a coolant pressure test — a simple but effective method that reveals leaks not visible during a standard inspection.
The test pressurises the cooling system while the engine is off, allowing us to see exactly where coolant escapes. In this case, bubbles and moisture quickly formed around the radiator core, confirming a small hole that was causing the coolant to leak out.
Coolant leaks can start small but lead to serious engine damage if ignored. A pressure test allows us to:
Identify leaks from the radiator, hoses, or water pump
Detect head gasket or expansion tank faults early
Prevent overheating and engine failure
Save customers money on bigger repairs later
Even a slow leak can cause the coolant level to drop, which reduces the system’s ability to regulate engine temperature.
After confirming the leak, we recommended a radiator replacement using a manufacturer-approved part. Once fitted, we refilled the coolant system, bled out any trapped air, and rechecked the pressure to ensure there were no further leaks.
The car now runs at the correct temperature with stable coolant levels — no more overheating, no more top-ups.
Low coolant warning light
Overheating or fluctuating temperature gauge
Sweet smell from under the bonnet
Puddles of coolant under the car
Steam or visible leaks around the radiator
If you’ve noticed any of these symptoms, it’s best to have your car checked immediately to prevent expensive engine damage.
Whether you suspect a leak or just want peace of mind, our technicians can pressure-test your cooling system quickly and accurately.
