Touch the pink wire terminal of the PMD connection with the probe of the test light. The light should turn on when the ignition is turned on. If this isn’t the case, troubleshoot the circuit. Next, make a solid connection between the CLIP of your test light and one of the positive battery connections.
How can I tell if my PMD is severe?
OR “How do I determine what to replace?” DIAGNOSIS: Simply said, if your check engine light isn’t illuminated and you’re experiencing stalling, you’ll almost certainly require a new PMD. You should have your codes examined if your check engine light is on. This is something that Auto Zone and others will do for free.
What is the purpose of a PMD resistor?
The Calibration Resistor on your 6.5L Diesel determines the injection pump’s maximum fuel delivery volume. On an ancient fully mechanical injection pump, it’s similar to the maximum fuel adjustment screw.
What is a 6.5 PMD and what does it control?
Since its introduction on the 1994 6.5L electronically controlled DS4 fuel injection pump, the PMD has been a big issue for Chevy / GMC 6.5L diesel owners. The PMD is a solenoid pack that generates heat and then absorbs it using the injection pump and the fuel flowing through it.
On a 6.5 Diesel, how do you test an injection pump?
Start the car to test the lift pump. Allow petrol to drain from the line into a container by opening the T-Valve for at least 30 seconds. If the engine dies or no gasoline flows out of the line after 30 seconds, your lift pump is broken.
What type of PMD resistor do I require?
Every 6.5L vehicle with a PMD requires the PMD calibration resistor.
Get a resistor here if you’re buying a new PMD and don’t have one, or if you need one for a spare PMD.
If you don’t know which resistor your pump was calibrated to, we recommend executing the #5.
Includes:
- #5 PMD resistor is a brand new resistor.
- NEW PMD resistor #9
These resistors are compatible with all PMDs in the BLACK color, whether they are original or aftermarket. Unless the locating tabs are removed, it will not fit the GREY PMD.
On a 6.5 Diesel, how do you bleed the fuel system?
When it comes to bleeding, all you have to do is crank the engine for 15 seconds at a time, followed by a one-minute starter cooldown period, and it will self-bleed. While bleeding the high pressure side, I prefer to crack one injector line loose; it helps to speed things up a little, but it’s not required.