Fits for GM 6.6L Duramax engines for 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
Shipping takes place within 3-5 business days. If there is a problem with the shipment of the product, we will notify you via the email address you entered when ordering.
🚗 Is free shipping available?
We do not currently offer free shipping. However, this may be added at some point. We apologize.
🚗 How can I get a tracking number for my order?
If your order has been shipped, we will add the tracking number to your order and notify you via the email address you entered when ordering.
🚗 How do I process a return or exchange?
For returns or exchanges, please contact us within 14 days of receiving the product, along with a receipt or screenshot of the purchase, and a photo of the product with the packaging or tag intact.
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