Diesel Specialists! Chevy GMC 6.5TD Turbo Performance
This site is in no way officially connected with General Motors, Chevrolet or GMC, Hummer or AM General or other.
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If you have a truck with a GM 6.5 liter diesel engine, this is the perfect site for you! Here you will find and should learn more than you may even care to about the GM 6.5 Diesel and Turbo Diesel Engines and vehicles.
The purpose of this website is to provide information and help with problems of the GM 6.5 liter Diesel engines that came in many 1992 to 2004+ and GM; GMC, Chevrolet (Chevy), light trucks, c/k pickups, g series vans, Suburban, Blazer, Jimmy, Tahoe, Yukon and some buses, medium duty trucks and other fleet, commercial, Recreational Vehicle (RV) and military applications, and also AM General Humvee and Hummer H1 vehicles, as well as some Marine (boating) applications. The 6.5 Diesel Engine was based on a Detroit Diesel design used by General Motors and is still in production now by AM General.
On this site we provide information about our company, and it's; inventions, designs, research, development, testing and manufacturing and provide fact based comparisons to other products that are similar to or that try to serve a similar purpose or that are copies of ours or other products. By providing the facts the consumer can easily see the differences without; hype, propaganda or baseless claims of which are so common with other products sold for these vehicles, and the consumer with the facts is then able to make an educated decision.
Our founder Jim has been
in the automotive business for over 30 Years and has been involved in
prototyping and design for many major OEM (original
equipment manufacturers) and other large
corporations. After having been somewhat disappointed in what the
automotive aftermarket had to offer for these engines Jim went to
work, and created some products for his truck at the time, a
K3500 Dually Crew Cab with the GM 6.5 Turbo Diesel Engine.
Looking at the weak and problem areas and designing solutions to weak design
areas or flaws and create better ways to achieve the goals of better
RELIABILITY, POWER, FUEL ECONOMY & PERFORMANCE.
Additionally some very important information is given and explained in the FORUM WARNINGS & PRODUCT WARNINGS pages are warnings about; misinformation, scams and defective or potential harmful products available for GM 6.5 Diesels.
1994 was the first year
for the EFI (electronic fuel injected)
6.5 Diesel Engines and from the start they seemed plagued with driveability
problems and Jim's truck was no exception. The serious problems such as;
stalling, hesitation, bucking, effected performance and safety. Factory support seemed nil and the
dealers seemed to not understand the problems and appeared to have little desire
to learn about or service them, and aftermarket support was virtually
The internet was still in it's infancy and the little information online about the 6.5 diesels was like a joke at best, usually just a couple sites looking to take money for a membership that provided information that was usually available elsewhere for free, and often of little if any of worth and the sites geared to push low quality, ineffective or marginally effective products that had little if any research and development or testing behind them.
The main cause of
driveability problem is the
PMD / FSD Module of the electronic fuel
injection system that mounts on the injector pump, it is the most common part to
fail on the GM 6.5 Liter Diesel Engines.
Jim's invention of the PDC/PMD Remote Package solved the PMD failure problem and is still offered here for sale today.
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To get his truck (pictured above) to operate reliably it seemed Jim was on his own, and drawing on his extensive automotive background and experience since 1978, he went to work on it, spent countless amounts of time; researching, tinkering, inventing, designing, and testing, testing and more testing. His work was very successful and once the reliability issues were resolved he went to work on ways of reliably adding more power to the GM 6.5 Diesel engines, making them more efficient to also help increase Fuel Economy.
While most of the automotive aftermarket overlooked or avoided the 6.2/6.5 diesel engines and their problems, Jim was a pioneer working to resolve to the issues and the result of his hard work and dedication was the creation of some excellent and thoroughly tested products. The results are the outstanding products available via this website.
The need for these innovative leading design products was there and word about Jim's work and the great products spread, and then due to the many inquiries and interest in them a decision was made add a branch to the existing Automotive businesses and offer the innovative products for the GM 6.5 Diesel engines to the public, and after extensive development and thorough testing the products were made available to owner's of GMC & Chevrolet Pick-up Trucks & SUVs and other vehicles equipped with the GM 6.5 Liter Diesel Engines.
The 6.5 Diesel products business grew, and the information on many of those fine products and other items are still here on this new website that is dedicated to upgrades for RELIABILITY and PERFORMANCE of the GM 6.5 Diesel engines. The products had proven themselves then, continue to do so, and have stood the test of time and have been sold now for well over a decade! Others have tried to copy the designs without successful results and some sellers have come and gone over the years, but it is our products and business that have stood the test of time.
Many of the fine products offered here are used on; AMBULANCES/RESCUE VEHICLES, FIRE Department, ARMY, NAVY, Air Force, Marines & Other Military and other Fleet vehicles that demand RELIABILITY! A few of such have testimonials and follow ups listed on our Feedback page.
Pyrometer and Boost Gauges: are
recommended to monitor the engines fueling and turbo conditions, also very
helpful in diagnosing some driveability problems. The Pyrometer is
recommended for all diesel engines to measure EGT (Exhaust Gas Temperatures) and
the Boost gauge is recommended for all Turbo or Supercharged engines to measure
boost pressure. Currently we do not stock
gauges. Try www.jegs.com We find Auto Meter
to be a good brand, and ISSPRO too.
Explore the pages on this website and read the warnings about engine and vehicle problem areas, and things that you need to watch out for, like unethical forums, unscrupulous sellers and parts or products that are being sold for GM diesels that can actually be harmful and/or dangerous!
This site will be updated regularly as things progress, so be sure to BOOKMARK it in your 'Favorites' and be sure to check back, or email us at Sales(AT)a1customs.com for updates.
For your convenience, often the main pages of this site will open in a new window to aid your information search, so you can just close the page after you read it and the previous page you left open should still be open.
In order to get the most information about the GM 6.5 Diesel it is best to follow the "NEXT" links at the end of each page.
"NEXT" PAGE = Recommended
Products for the GM 6.5 Diesels
The Ultimate PDC/PMD REMOTE PACKAGE
OIL PRESSURE SWITCH SAVER
IGNITION SWITCH SAVER
DASH ADJUSTABLE TURBO BOOST / FUEL CONTROLS
HI-FLOW PERFORMANCE AIR FILTERS, 'LIFETIME' REUSABLE
TUNED 6.5 TURBO DIESEL PERFORMANCE EXHAUST SYSTEMS
WATER MIST INJECTION SYSTEMS also w/ ALCOHOL INJECTION
PROPANE INJECTION SYSTEMS
NITROUS OXIDE INJECTION SYSTEMS
TECH TIPS PAGE
FAQ Ordering, Payment & Shipping
FAQ Products & Technical
Feedback & Testimonials
WARNING : About Forums and Discussion Boards
WARNING : Knockoff Products & Cheap Copies
NOTICE : About Low Compression Pistons
WARNING : Fan Clutch Warning
NOTICE : Intercoolers for the 6.5
WARNING : Gear-Drive Timing Set
WARNING : Splayed Main Caps Kit
WARNING : Foam Air Filters
587 N. Ventu Park Rd. E28
Newbury Park, CA 91320
Website disclaimer, terms & conditions.
© All images and text are property of this website, photographer and/or author and protected by Copyright. Disclaimer: By reading the website, readers understand and agree to all terms and conditions set forth on the site and herein and realize that although effort has been made to try to present accurate information this website, it could contain some errors, mistakes, opinion, and typos so use any information and with that in mind, if in doubt, reader should research anything they do not understand or question as reader is responsible for their own actions. There is no guarantee or warranty on information on this website or any other it links to and visitors agree to hold authors, page owners and internet service provider harmless and free from any liability arising from use of information provided on this website or any product purchased there from or via email. Website disclaimer, terms & conditions. The Magnus-Moss Warranty Act prohibits a dealer or manufacturer from voiding your warranty unless a product is directly responsible for a failure.
"NEXT" PAGE = Recommended Products for the GM 6.5 Diesels