Problems with the fuel system of your car can come in a variety of guises, but they typically amount to one thing: your car will not run. If this is the case, fuel system problems will need to be quickly remedied. Common problems include spark plugs misfiring, poor engine compression, issues with air leaks in the inlet manifold or carburettor, valve timing and a fuel mixture that is too rich or too weak. A good vacuum and fuel tester can identify any of these problems quickly, allowing you to evaluate what repairs need to be made in a quick and timely fashion - without having to pay a garage for diagnostics. All these devices come with free UK delivery included as part of the purchase price. Alternatively, we have great rates on express next-day delivery as well as international postage. You can also click and collect your purchase from any one of our UK stores.