Description:

Fuel Pressure System Vacuum Test Kit TU-32-6. Fits for GM 6.6L Duramax engines for Diesel fuel pressure and vacuum testing. 3-1/2" gauge reads 30 inHg to 15 PSI. The pressure gauge reading of the fuel pressure tester may be zero, low, or high. Zero pressure means the fuel pump is not working, and low pressure may indicate a clogged fuel filter, a faulty pump, or a problem with the fuel tank. A high pressure reading could be a sign of blocked fuel line, bad fuel pressure regulator, or faulty. If you're not 100% satisfied with this Brake Line Kit, simply return it for a replacement or a full refund in 30 days.