Leaking charge air coolers are one of the most common causes of reduced diesel truck performance. The problem is that the signs of a leaking CAC are not obvious to the operator or even the maintenance technician, until it is so bad that greatly increased fuel consumption is noticed. In a CAC air cools air, so there will be no obvious evidence of a leak, unlike a leaking radiator that leaves a puddle of coolant under your engine.

Data shows that almost half of the charge air coolers aged over two years have leakage in excess of the recommended specification. The result is a lot of excessive fuel being consumed, loss of power and other engine issues being created, reducing the profitability of the owner’s business. For a fleet of trucks, leaking CAC’s can easily cost tens of thousands of dollars in extra fuel bills. The cost of a Dura-Lite CAC pressure tester and the 20-minute test is quickly earned back in improved engine performance and restored fuel economy. Find out more...