Engine diagnostic and maintenance tools
Cooling system faults on HGVs account for a significant proportion of roadside breakdowns. A radiator pressure test kit identifies the leak source before the system is opened and component replacement begins — testing under pressure reveals whether the fault is at a hose connection, a core leak, a pressure cap seal, or a head gasket combustion leak. Diagnosing before replacing prevents fitting new components to a system with an underlying fault that will cause the same failure to recur.
The POWERHAND Universal Radiator Pressure Test Kit provides the adaptor range needed across different coolant system cap and filler neck configurations on commercial vehicles. The combustion leak test fluid detects exhaust gases entering the coolant system, which is the definitive non-intrusive test for head gasket integrity before any engine dismantling is considered.
The POWERHAND antifreeze tester provides an immediate reading on coolant freeze protection levels — a check that should be performed before winter and after any coolant top-up where the dilution ratio is uncertain. Running insufficient antifreeze concentration in winter on a vehicle that operates in sub-zero conditions causes coolant freeze damage to engine blocks, radiators, and heater matrices.
Injector shaft cleaning sets address the carbon and urea crystal contamination that accumulates in the injector bore during EGR and AdBlue system operation on Euro 5 and Euro 6 diesel engines.
For advice on specific tools for a diagnosis or procedure, call us on 01527 68279 or contact our team at https://truckstopgroup.co.uk/pages/contact.
Frequently asked questions
How does a radiator pressure test kit work?
A radiator pressure test kit pressurises the cooling system to a specified pressure using a hand pump attached to an adaptor fitted to the coolant filler neck. The system is then observed for a pressure drop over a set period. A drop indicates a leak; visual inspection of the system under pressure locates the leak source.
What does a combustion leak test detect?
A combustion leak test uses a chemical indicator fluid that changes colour in the presence of combustion gases. If the coolant is contaminated with exhaust gases from a head gasket failure, the indicator fluid changes from blue to yellow. It is a reliable, non-destructive test for head gasket integrity.
How often should antifreeze concentration be tested?
At least once per year before winter, after any coolant top-up, and after any cooling system repair where dilution may have changed. Most diesel HGV cooling systems require a minimum 33% antifreeze concentration for protection to -20 degrees Celsius.
What is injector shaft cleaning used for?
The injector bore in a diesel engine accumulates carbon deposits and, on Euro 5/6 engines, urea crystal deposits from AdBlue system operation. These deposits prevent the injector from sealing correctly. Cleaning the bore before fitting a new injector ensures a clean seating surface.
Do you sell engine tools near me?
Truckstop Group delivers engine tools to all UK mainland addresses. Next-day delivery is available on stocked lines. Same-day collection is available from our branches in Redditch, Worcester, Birmingham, and Evesham.
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