6.5 Diesel Technical Library

[JiFaire]

P

PCM - Powertrain Control Module. The 'brain' of the vehicle. Can be reflashed for more economy/performance.
Info from chrisK1500

PMD - Pump mounted driver (aka FSD/fuel solenoid driver)- common failing part. Stock location is on the side of the injection pump. Failure results in stalling. This is not the only cause for stalling.

PMD - Stanadyne Technical Bulletin on the 'new' grey PMD.
Info from JMJNet



PMD Extension Cable - DIY: Solder or Crimp? - If you're planning a DIY- extension for relocating your PMD, then you need to read this very informative post before you start.
Info from Radio Man


Q

R

Radio Lights (Changing them) - Have the lights behind your radio buttons stopped working? Here is a pictorial look at how to change them out!
Info from great white


Recalls - Has there been a recall on your vehicle you should know about? Find out by querying this database.

RPO Codes - (Regular Production Options). Codes on your build sheet and located on the RPO label in your glove compartment that describe the factory options that your truck was originally equipped with. Try this handy RPO Lookup Tool and here http://www.thetruckstop.us/forum/showthread.php?36323-RPO-Codes&p=417507#post417507
Info from Mad Maxx

S

Serpentine Belt - Multi-V-Groove belt that drives the crankshaft-powered Utilities on the front of the engine... Alternator, Power-steering, Vacuum Pump, Water Pump and Fan. Routing diagram can be found here.
Info from 96 Oilburner

Service bulletins - Has there been a Service Bulletin about your vehicle you should know about? Find out by querying this database.

Starter Rebuild (gear-reduction) - Rebuild yours, DIY Step-by-step with pictures... See how to do it all here
Info from bison

T

Timing Stepper Motor - (ITS). Motor located on the passenger side of the IP that controls injection timing advance and retard.
Info from chrisK1500

Turbo / Wastegate System ... How does it work? See here
Info by knkreb

Turbo Master (TM) - Is a spring actuated wastegate that sets the boost pressure by adjusting the spring tension. This precision instrument from HeathDiesel controls the Turbo-boost pressure, eliminating the GM Vacuum Wastegate-control system. Often installed when vacuum pump fails or as an owner pulls off the vacuum pump. Can be bought from HeathDiesel for ~$100 or you can make your own version for ~$10-$20.
Info by Green Machine

DIY Turbo Master Step-by-step with pictures... how to build your own!
Info by mfgguru

DIY Turbo Master #2 Step-by-step with pictures... how to build your own!
Info by 625fireman


Turbo rebuild - (GM8) Rebuild yours, DIY Step-by-step with pictures... See how to do it all here!
Info by Bison

 

[JiFaire]

U

V

VIN Stands for Vehicle Information Number, and is the 17-digit serial number found on your vehicle registration (also stamped onto a plate under your windshield in front of the driver, and found on other stickers and plates around your truck)... The VIN carries information about your truck including year, place of manufacture, option codes, and is your link to more information! Common usage includes looking for the 8th digit (a letter) that describes whether your truck is an F (heavy dity), S (light duty), P (Van), etc.

Try this handy VIN decoder!! You can also post your VIN in our Vehicle Information forums (GM, Ford and Dodge) and helpful members will pull the available stored information on your truck including warranty work done, major changes and special order options.
Info by bobbiemartin

W

Warranty - Injection pump warranty is 11 years from date of service or 120,000 miles.

Water Mist Injection (WMI) - A form of intercooling using a fine mist of water into the intake. The water provides a degree of charge air cooling, and is sometimes mixed with methanol. The methanol also adds power as a supplemental fuel.
Info from RCpullerdude

Water-To-Air Intercooler (WTA) - Intercooler using liquid to first cool the charge air, then another, external cooler to cool the liquid. The intercooler itself is a simple device that charge air flows through, and the liquid circulates around the charge air, removing heat from it. The liquid then flows to a radiator-type cooler to transfer the heat to the atmosphere.
Info from RCpullerdude

X

Y

Z