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Hi, I have a 99 Suburban with 6.5 Turbo. I ran over 200 thousand miles on home heating oil. No problems. Before that i had a 89 suburban with the 6.2 diesel. Same thing. over 200 K & no problems. The Military Hummers with the 6.2 & 6.5 diesels run on anything. Same engines.

Hi ! I am looking to buy a1998 GMC turbo diesel 6.5 l with a 4L80E transmission.. the pick-up have some difficulty to shift on third gear it need Higher rpm.the Truck is in good shape. I think it is the speed vss,the rpm and the sppedometer are intermittent.

Hi , is there a way to get the Tech Library working? Thanks.

2013 LML SLE 4wd need stock tune if possible
I have an Flash Scan coming and have been to the GM site to get calibration numbers.
How do I match up the numbers found there to the numbers in the controller?

I have a 1996 Chevy 1500 2wd Shortbed ….im doin a 4l80e swap an Need a few answers….

I am currently fighting with Codes P0087/P0088 Both during the same drive cycle. The truck is completely stock. I had to recently replace two injectors, so I elected to have all 8 replaced. Roughly 45 days after the injectors were replaced I now have these 2 codes intermittingly coming up. I am looking for some advise or direction as how to correct this/these concerns. The truck has roughly 227500 miles.

Hello my name is Steve. I live in south Texas and drive a 2009 Silverado with an LMM Duromax

Help with my 6.5 idle 1994 3500

Where is the fuel fuel system sensor on a Duramax dual tank fuel system.

where is the fuel system sensor for a Duramax dual tank fuel system

94 silverado ext. Cab changed front end to 89 cheyenne. And smoothie so far. Lot of plans. New to this ANY help is appreciated

Hello Young man, I have a 99 GMC 3/4 ton with 5.7 and 4L80. Trans needs work. I have a core from a 2006 Chevy. I understand the rebuild kit should be the same between the years. I would like to install new solenoids. Are the solenoids different between years? I found a master solenoid kit for 1991 - 2003. I am I on the right track. Thank you for your time.

1993 c1500 removed the dash cluster and reinstalled it and now the speedometer isn’t working any ideas

2005 chevy siverado 3500 4x4 8.1L w/ allison 1000 5 speed having transmission problems code u1024

Owen 1996 6.5 turbel 3500 dually just rebuilt. engine having trouble with cold start runs great after getting it started.

Any advice on what to look at, timing is per the OEM spec. +/- 2 degrees. Dist. is a new EFI Connection vortec unit. Crank sensor is a EFI connection provided sensor and billet cam cover.

newbie - truck is 98 K2500 Chevy. In process of installing a SBC 427 Dart SHP block stroker. Has AFR aluminum heads and Cust. Grind COMPCAMS Hydraulic roller. OEM EFI (with a 48lb/h rated spider) and ignition with a 0411 PCM upgrade with a custom BBP tune installed. Getting a Crank/Cam correlation OBDII code.

95 Chevy 6.5L T-Dsl-Installed new BLOCK heater/replaced 1/2 batteries & it would not crank (instrumentation lights work). OBD1 system-what is wrong electrically? 2nd battery still good. I am open to any suggestions as to the problem & a solution or where 2 get a better scanner. Thanks!!!

Hi, I'm currently trying to use your db2 conversion guide and I have some questions about wiring and a few accessories. If you have time to discuss it I would be grateful.

Hello

Rumor has it your may have some Banks 6.2l turbo manifolds available?
I'd sure be interested in buying one if you do