When do you need a new PMD for a diesel engine?

Simply put, if your check engine light is not on and you experience stalling, it is a 95+ percent certainty that you need a new PMD. If your check engine light is on, you need to get your codes checked. Auto Zone and others will do this for free. If you ONLY have codes P1216, P1217, 35, 36 or any combination of those, you need just the PMD.

Where to come when your 6.5L diesel will not start?

Where to come when your 6.5L Diesel will not start! “The PMD / FSD (Pump mounted driver) is by far the #1 cause of 6.5L no-starts (at least 90%). If your truck experienced random stalling like someone shut the key off before ultimately refusing to start again, the PMD is very likely the issue.

Is there a no start on a 6.5L PMD?

Those who are technically oriented and equipped with the proper tools, or who have a hard to solve no-start issue, can follow our in-depth 6.5L No-Start Diagnostic Guide

Where is the injection pump on a 6.5L diesel?

There is a large round 15-way connector near the back of the intake manifold which joins the injection harness (which contains all the wires to the injection pump) to the main engine harness. Open this connector and ensure that the terminals are in good condition and not corroded as is common in northern trucks.

Those who are technically oriented and equipped with the proper tools, or who have a hard to solve no-start issue, can follow our in-depth 6.5L No-Start Diagnostic Guide

What is the diagnostic code for an engine misfire?

When the check engine light illuminates, your car’s primary computer, which is often referred to as the powertrain control module (PCM), will store a diagnostic trouble code (DTC) in its memory. Codes P0300 to P0312 are the primary DTCs associated with an engine misfire.

What does code 27 voltage sense error mean?

Code 27 – Voltage Sense Error What this fault code tells you is that the controller cannot sense the output voltage. Again, this problem may be beyond your expertise to repair. The manual states that the only solution is to go to your authorized Onan dealer to rectify the issue.

What causes a 6.5L diesel engine to stall?

SYMPTOM: Your 6.5L Diesel stalls just as if someone had reached over and turned off the ignition switch. CAUSE: There are two main causes. The first and most common is the PMD (also called FSD).

What is DTC solutions-repair solutions for codes?

DTC Solutions – Repair solutions for codes! DTC Solutions – Repair solutions for codes! The very best truck diagnostic trouble code program just got better. There are tons of ways to get repair information for commercial trucks and components, but very few ways to get repair information for those codes.

Which is the best truck diagnostic trouble code program?

DTC Solutions – Repair solutions for codes! The very best truck diagnostic trouble code program just got better. There are tons of ways to get repair information for commercial trucks and components, but very few ways to get repair information for those codes. This program contains repair information that you can’t live without!

What is the fault code for a fuel injector?

When one or more cylinders are contributing less power than the rest of the cylinders, the fault code P0278 is set. While the PCM performs this test to determine if a fuel injector is working properly, an auto technician can perform a similar test to locate internal engine problems.

Do you need PMD code for Auto Zone?

Auto Zone and others will do this for free. If you ONLY have codes P1216, P1217, 35, 36 or any combination of those, you need just the PMD. If you have codes P0251 or PO370, 17, 18, or any combination of those, you should consider the injection pump suspect.

When do You Know you need a new PMD?

Do you need a heatsink for a GM PMD?

In fact, the GM factory replacement PMD has the original style socket. Remote mount PMD kits come with a heatsink, heatsink compound, terminal grease, mounting hardware and an extension cable. If you get a brand new PMD it will come with a heatsink pad / gasket. Use this instead of heatsink compound.

What causes a PMD to fail on an injection pump?

This rise in temperature heats the PMD which is bolted to the injection pump sitting on top of the engine. The continual heating and cooling cycles cause the PMD to fail over time. Note that damaged wiring or a bad injector that’s drawing too much current can take out a PMD. Also check the the fuel system shutoff solenoid on the injection pump.

What kind of truck has no cel on?

One of my work trucks is 06 c5500 8.1L vortec its not showing any codes or no CEL is on and it starts and idles fine.

What causes a headache on a GM 6.5L diesel?

Another common headache on the 6.5L is caused by the failure of the oil pressure switch. Not a huge problem on most other engines, but in the case of the 6.5L the OPS serves two purposes.

What was the cooling system for the GM 6.5L diesel?

The 6.5L’s tendency to run warm and even overheat was addressed by GM beginning in ’96 with the reworking of the engine’s cooling system. That model year, twin non bypass-blocking thermostats were integrated along with a higher volume water pump.

What kind of engine does a GM 6.2L have?

And unlike the offerings from Ford and Dodge of that era, the 6.2L and then 6.5L turbo diesels could be had in a half-ton truck. Their packaging is similar to that of a Chevy small block and they utilized the common 90-degree V8 GM bellhousing pattern.

When do you need a new PMD for a diesel engine?