- Synthetic 5W-40 safe for summer use? (14 replies)
- wheel safety factor? (4 replies)
- Oil Leak (3 replies)
- Red Bottle STP (6 replies)
- 6.5 turbo hard starting (2 replies)
- 6.5 TD Highway Mileage Poll by GMC Hauler (42 replies)
- When To Change External Tranny Filter?? (2 replies)
- 6.5TD MPG Hiway mileage Poll! (59 replies)
- Pure Power Oil Filters (8 replies)
- Swapping a 350 gas for a 6.5TD (25 replies)
- Welcome to the New BB (7 replies)
- Fuel Gauge (2 replies)
- Recipe for parts washer solvent (16 replies)
- cracked 6.2 head (1 replies)
- DSG gear drive (5 replies)
- repair manuals (1 replies)
- 6.2/6.5 Repair Manual (3 replies)
- Vacuum Pump Rebuilding? (2 replies)
- Oil Additive (2 replies)
- Adding Acetone to Diesel? (8 replies)
- High Miles Contest! (86 replies)
- 6.5 turbo drivers side (12 replies)
- OIL PRESSURE (1 replies)
- REP KIT MESTER BRAKE CYLINDER (2 replies)
- Here comes Wilma !! (6 replies)
- Air Cleaner mods (4 replies)
- Clear Polyurethane fuel return lines ? ? ? (0 replies)
- DR. LEE Know anyone w/tech2 in Palm Beach (2 replies)
- Good thinkin' Sub! (2 replies)
- 6.2 Unknown Problems (3 replies)
- Guages (2 replies)
- Hydraulic brake booster source (3 replies)
- New Block (1 replies)
- Engine Stand Q' (2 replies)
- Biodiesel from Waste Veg Oil - consensus? (13 replies)
- SOLPOWER additive (0 replies)
- Pictures of the Red Rod (0 replies)
- Compression ratio for 6.2 NA (4 replies)
- hired expert needed for speaking engagement (1 replies)
- V-belt issues ! ! ! (3 replies)
- 6.2L Block Ni Content (1 replies)
- High oil pressure (5 replies)
- check engine soon light (1 replies)
- Glow Plug Circuit (5 replies)
- 6.5l non turbo MORE POWER (4 replies)
- Differential oil: to use synthetic or not? (10 replies)
- water in fuel light (1 replies)
- 6.2 no start (1 replies)
- Tach installation (1 replies)
- Register for the Rendezvous (0 replies)
- Grind a crank ? ? ? (4 replies)
- New Block Tempering - Expansion & Contraction (3 replies)
- timing (1 replies)
- DTC P0406 (1 replies)
- Rear end Backlash (0 replies)
- Best Exhaust Option For Suburban Diesel? (2 replies)
- Moly lube (3 replies)
- Fuel filter (1 replies)
- ???? about progress (3 replies)
- Injector Pump Question (4 replies)
- Pulling multiple OBDII codes (2 replies)
- glow plug controller or relay? (1 replies)
- electric lift pump ??? (1 replies)
- Antifreeze (6 replies)
- 6.2l to 6.5l turbo in a 83 GMC 3500 Vandura (2 replies)
- Delayed Shift (0 replies)
- allison problem (1 replies)
- Cylinder head question? (3 replies)
- TP oil filter (6 replies)
- KNOCKING SOUND AT START& SUTDOWN (3 replies)
- 6.5 Long Block (1 replies)
- Optimal 6.5 for swap? (2 replies)
- RPM Increase (5 replies)
- Cold start problems (2 replies)
- Oil Supplement/Synthic Oil ????? (13 replies)
- brake problem (4 replies)
- benefits of 18:1 pistons in an NA engine (4 replies)
- 6.2 black, blue smoke (1 replies)
- engine surge (1 replies)
- Bolt Torque (1 replies)
- air cleaner air flow (3 replies)
- Exhaust manifold testing (5 replies)
- Stainless VS Non-Stainless Exhaust (2 replies)
- DTC Codes (5 replies)
- New Injection pump (4 replies)
- Electric Lift pump system (1 replies)
- 6.2 NO START/but has power to solenoid (1 replies)
- nv4500 behind a duramax (1 replies)
- Electric fuel pump wiring help (0 replies)
- spun rear main bearing (2 replies)
- EGT Probe Location (3 replies)
- Max fuel economy for the 6.5TD (115 replies)
- Pyrometer mounting location (3 replies)
- Glow Plug Problems! (3 replies)
- Proper brake break-in procedure (2 replies)
- Fuel filter flow rate (9 replies)
- Nightmare in my garage (6 replies)
- Switch for HPCA and fast idle (1 replies)
- 6.2 cooling and turbo (8 replies)
- Need data on a FORD ! ! (2 replies)
- Engine vibration in cab (1 replies)
- Gas to Diesel Tanks (6 replies)
- Pitting (3 replies)
- Dr. Lee I was trying to find more info (4 replies)
- Crimp Connections (21 replies)
- wrist pin noise (2 replies)
- 2004 L and 2004.5 Y Whats the difference? (1 replies)
- EURO RENDEZVOUS 2005 (2 replies)
- "C" vs "J" Head Markings....... (0 replies)
- She's gona blow... (6 replies)
- 700R4 - "Torque Drive" upgrades (3 replies)
- new guy with 6.2 (15 replies)
- 2003 Duramax problems anyone?? (2 replies)
- 6.2 to 6.5 swap (10 replies)
- LLY Duramax (1 replies)
- NA Diesel No Smoke Timing??? (2 replies)
- 1995 Chevrolet G30 Van (6.5L Diesel) (6 replies)
- Warm Alli (1 replies)
- 4l80e on the cheap (0 replies)
- Exhaust Crossover (2 replies)
- how can i tell for sure (4 replies)
- PMD replacement (0 replies)
- A study in logistics. (5 replies)
- new to diesels (1 replies)
- Hurricane Watch for South Florida (8 replies)
- 98 sub. trouble code 236 (6 replies)
- calculating exhaust volume (1 replies)
- Fuel Filter tests (1 replies)
- Oil Pressure is low (4 replies)
- PMD Failure (2 replies)
- NP 246 Auto 4 WD Transfer Case? (6 replies)
- 6.2 and AIr Conditioning (5 replies)
- Accessory Codes (1 replies)
- Propane & Nitrous Oxide (3 replies)
- ZDP in oil (4 replies)
- Wiper Switch (1 replies)
- removing grill on 1996 GMC (2 replies)
- cruise control (1 replies)
- Oil Filter Inspections (0 replies)
- Running HOT under load! (0 replies)
- Running HOT under load! (29 replies)
- Oil for used Diesel Skid loader (1 replies)
- Loss of power on righthand tank (11 replies)
- Source of Diesel Rattle ? ? (1 replies)
- Tachometer Conversion (4 replies)
- no power 6.2 (4 replies)
- very low idle on start (1 replies)
- 2002 Manuals (0 replies)
- Undercarriage Protection (1 replies)
- Extended life coolants and Diesel Fuel Additives (3 replies)
- Repairing a pinhole leak in a radiator (5 replies)
- New engine sound (1 replies)
- Sulfur: Good, Bad or Ugly ? (11 replies)
- 6.2 to 6.5 engine swap (2 replies)
- Is Big Brother Watching ? ? ? (9 replies)
- High idle circuit / poor man's cruise control? (4 replies)
- Looking for Ideas (5 replies)
- Virbration (8 replies)
- Differential or suspension? (2 replies)
- What will we get? (9 replies)
- Acetone for Increased MPG?? (9 replies)
- suspension mods to old red (3 replies)
- Oil circulation (1 replies)
- Cooldown time (1 replies)
- Turbo boost sensor (1 replies)
- New oil filter study - flow vs filtration (4 replies)
- Dr Lee`s obsolete truck (16 replies)
- low volt guage when running (5 replies)
- Metal Compatability Question (3 replies)
- proper use of"Ask Dr Lee" (2 replies)
- CFM of air needed to cool 6.2L (7 replies)
- changing timing chain? (3 replies)
- Heater hose routing (1 replies)
- Aeroturbo muffler and vortex theory (1 replies)
- What year was the 599 block first introduced? (5 replies)
- 6.2 to 6.5 engine swap (1 replies)
- To buy an old truck, or not ? ? ? (0 replies)
- lightbulbs (2 replies)
- Delvac 1 Question (1 replies)
- Buy my Banks for Dr. Lee (6 replies)
- temp guage on dash is or was maxed out.. (1 replies)
- Turbo question (4 replies)
- Oil Analysis questions (1 replies)
- Old block in a newer Truck ? (3 replies)
- Exhaust Brakes for the Duramax (6 replies)
- How much pump advance is too much? (3 replies)
- 85 - 93 Glow Controller Improvement (8 replies)
- Code 18 and Hard Starting (1 replies)
- Towing a Duramx (3 replies)
- Coolant in cylinders, 95 6.5 suburban (3 replies)
- Dual electric fans? (17 replies)
- Glow plug starting problem! (6 replies)
- Why not use existing sensors for gauges? (2 replies)
- Cranks part 2 (6 replies)
- Return location for by pass oil filter (2 replies)
- Need help with the glow plugs (again) (1 replies)
- stalling again..... (1 replies)
- Crankshafts ! ! ! (6 replies)
- Finding TDC (1 replies)
- Hollow noise at air intake (2 replies)
- Block Crack Testing (4 replies)
- benefits of timing gears (11 replies)
- Fuel Temperature & Injector Pump (1 replies)
- Crankcase Depression Reg. Valve (1 replies)
- letting turbo cool (2 replies)
- Horn Upgrade ?? (1 replies)
- cylinder wall thickness or more displacement ?? (3 replies)
- dual exhaust size (1 replies)
- Exhaust headers - a good change? (1 replies)
- Lift Pump (4 replies)
- Exhaust mod's (9 replies)
- 6.2 Conecting rods? (0 replies)
- Noisy lift pump (4 replies)
- quick heat glows (2 replies)
- How Much Torque ? (2 replies)
- Help needed in Jacksonville, FL (2 replies)
- EGR System (6 replies)
- Electric Fuel Pump (2 replies)
- alternator in motorhome (0 replies)
- Coolent gauge operation (4 replies)
- Location Coolent Temp Sending Unit (1 replies)
- Differences between 6.2 "C" & "J" (1 replies)
- torque converter problems (2 replies)
- 700R4 or 4L80E ? (9 replies)
- Over filled tank (1 replies)
- Crane Cams Regrind (1 replies)
- No Start (1 replies)
- Thin Oil (10 replies)
- Low oil pressure - Block cracks ? ? ? (1 replies)
- LONG STARTS (1 replies)
- NA power (3 replies)
- Bypass oil filtration/relocated filter (5 replies)
- Block casting numbers (5 replies)
- ATS turbo (0 replies)
- C or J heads (3 replies)
- Oil leaking from rear end vent (1 replies)
- runaway (3 replies)
- DX Block? (7 replies)
- What about the 700R4 ? (3 replies)
- Related to last question. (2 replies)
- question (2 replies)
- Head gaskets for turbo (3 replies)
- Pyrometer Senor Question (1 replies)
- Emission Control modifications (1 replies)
- Diesel Math (17 replies)
- egr or not (1 replies)
- Used turbo (3 replies)
- Paging Dr. Lee! (1 replies)
- Coolant renewal vs. replacement ? ? ? (1 replies)
- Electrical/Starter Difficulties (2 replies)