6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance [Archive] - Page 3

Muffler Recommendations (11 replies)
Help with starter issues (3 replies)
6.5 TD will not throttle up (10 replies)
Turbo boost sensor (6 replies)
Engine Bay/Hood Insulation (3 replies)
ProMaxx cylinder heads, anyone experience (2 replies)
Ring Clocking (7 replies)
Boost & EGT low (12 replies)
6,5l gaspedal or IP hang-up ? (4 replies)
Setting timing by ear... Turning up pump too (5 replies)
4l80e tranny issues (1 replies)
Waterpump backing plate (1 replies)
what wears out in an IP (12 replies)
Non Turbo 6.5l surging (3 replies)
jMS PMD/FSD (6 replies)
Wiring harness (2 replies)
newbie here (1 replies)
low boost psi (1 replies)
Possible 6.5 project (2 replies)
Fuel psi (3 replies)
The great parts search... (3 replies)
replacing IP from 1993 to 1994 (16 replies)
Gear drive timing sets (10 replies)
6.5 marine diesel rebuilds engines (3 replies)
No interior lights. (2 replies)
Fuel Filter Housing Question - HELP!!! (1 replies)
Extra parts for sale that came with truck (1 replies)
Oil Pressure Sending Unit (4 replies)
Kids and unscheduled maintenance,. (6 replies)
Cylinder temp readings (14 replies)
Need Part 23500374 crossover for 94 Burb (18 replies)
Loose part (4 replies)
Charging problems (3 replies)
Slow Shift Into Drive, Delayed 1-2 Hard Shift, 4L80e (1 replies)
Water pump studs/bolts (6 replies)
6.5 problem (3 replies)
wondering unstable rpm above idle in neutral l (1 replies)
Need help with 1993 6.5 (7 replies)
Mushy brakes (9 replies)
engine codes p1214 and p0216 (0 replies)
Lack of power (2 replies)
Smoke problem (0 replies)
The retractor on my 1994 K3500 is not rectracting (12 replies)
More truck issues (4 replies)
1995 Dually (9 replies)
DTC 97 Code (4 replies)
6.5 engine knock (2 replies)
PMD relocate, rain, sudden acceleration (7 replies)
Blown 6.5 Diesel Van? (3 replies)
Re&Re 1995 6.5 Engine,Rust on cylinder walls, need to rebore? (4 replies)
Serp drive. (2 replies)
1997 6.5 TD. Losing power around 30MPH. Idles fine. (0 replies)
Glow Plug Nightmare (2 replies)
rpm erratic (2 replies)
98 "HO" water pump in my 94 Suburban? (3 replies)
Ecm location (4 replies)
Looking for a good diesel mechanic in Toledo area (2 replies)
Map sensor question again (4 replies)
1995 6.5 vin s help (8 replies)
New 6.5 Suburban/ leaking transmission (7 replies)
Added some more grounds (0 replies)
Code 17 only (11 replies)
Hot oil psi at idle (10 replies)
Starter bolts again (3 replies)
Excessive EGTs and black smoke (7 replies)
Blow by video (13 replies)
question (2 replies)
Problem with 1995 Chevy 2500 suburban 4wd (3 replies)
Oil pan install 6.5 TD (4 replies)
'96 K2500 6.5 overheating (14 replies)
upper ball joints (6 replies)
Cranks but wont start (8 replies)
Fan clutch (13 replies)
Obd2 periodic lift pump function (1 replies)
crack line between valves (2 replies)
180 degree dual thermostats (3 replies)
Siezed injection pump. (0 replies)
Cdr valve replacement (4 replies)
Electrical question (13 replies)
new 1992 6.5 liter turbo diesle, MPG. VS MPG with modification. (1 replies)
Heat smeals like exhaust (9 replies)
Water pump upgrade,, (7 replies)
6.5L diesel, rough idle, smoking, metal fuse getting hot (17 replies)
Airlock in Fuel System (18 replies)
New oil to try (5 replies)
Anyone Make a Homemade Downpipe for the factory turbo? (2 replies)
Injection pump computer code (5 replies)
Dtc codes (5 replies)
Transfer Case Switch issues (3 replies)
95 2500 siezed pump (7 replies)
6.5 seized while troubleshooting fuel system (9 replies)
Model of truck (10 replies)
6.5L 98 Suburban engine wiring (0 replies)
Severe oil leak in Victorville Ca (3 replies)
Replace Injection Pump? (7 replies)
Ses codes (1 replies)
acceleration/throttle issues (6 replies)
Done flushing (0 replies)
2000 C3500 Project Questions (1 replies)
Black Smoke Question/Manual Transmissions VS Automatic Transmission s (3 replies)
Mechanical vs Electronic (11 replies)
Alternator (11 replies)
Drain cock replacement (8 replies)
More boost and wastegate solenoid questions (7 replies)
Ac delco 180 thermostat (9 replies)
Fuel gauge. (2 replies)
1996 2500 glowplug light staying on (1 replies)
No pull and cruisecontrol issue (1 replies)
6.5 turbo auto trans issue (2 replies)
electric lift pump (9 replies)
Ses 74 (4 replies)
Wastegste solenoid (4 replies)
1994 6.5 3500 code 78/cruise won't work. (20 replies)
Water pump question (20 replies)
Mahle Piston Rings vs. EngineTech Piston Rings (4 replies)
Marine injectors, ugh. (16 replies)
towed home on front wheels ??? (4 replies)
Switching from synthetic to Dino thoughts (4 replies)
Is the tacho pickup different in a P400? (8 replies)
Gauges pod (0 replies)
Fuel problems. (11 replies)
P400 cooling (2 replies)
One final transfer case question (5 replies)
P400 advice (9 replies)
Front drive shaft length (2 replies)
Blown Trans or transfer case (28 replies)
Oil pressure in low mileage 6.5 (5 replies)
6.5 pyrometer? (3 replies)
GM 6.5 TD in an RV (2 replies)
blowby (1 replies)
Upper control arm. 4x4. (8 replies)
Fuel millage (4 replies)
So, it's time to dig out the old Burb. (8 replies)
Starter support bracket (12 replies)
Turbo question (4 replies)
How to tell if I have a performance chip or not? (1 replies)
6.5 parts (1 replies)
1993 glow plug harness (4 replies)
097 injectors (11 replies)
cooling upgrade part numbers (5 replies)
Camshafts (5 replies)
My Navistar engine build (2 replies)
Valve cover breather?? (9 replies)
94 6.5 injector pump question (5 replies)
newbie to diesels (5 replies)
Water pump failing ? (10 replies)
Where To Source Pre-Cups?? (3 replies)
Every year,. (1 replies)
fuel line (2 replies)
Main stud girdle for Navistar blocks (13 replies)
New project (4 replies)
oil leak @ crossover pipe (8 replies)
Difficulty getting up to temp for TDCO learn (4 replies)
cruise control 2000 gmc 6.5 (16 replies)
Banks trans temp gauge,, (3 replies)
Boost Vacuum Lines (18 replies)
Auxiliary Gauge mounts (2 replies)
Quits in run position (3 replies)
30 AMP Fuse (1 replies)
Shakes bad (13 replies)
Low oil psi at idle when engine is hot (7 replies)
Any difference in cranks? (5 replies)
Fuel filter fix - now rough idle and white smoke? (3 replies)
95 6.5 turbo diesel alternator bracket (1 replies)
Help needed finding the best replacement radiator please. (6 replies)
Tube on back of block (1 replies)
compression testing info needed 2004 Optimizer 6500 (56 replies)
Starter bolts - to use a washer or not? Help please! (17 replies)
Holset HX35 (2 replies)
code 36 and 65,, (2 replies)
1993 Safari MH with 6.5TD (5 replies)
Fusible links. Ignition switch (1 replies)
Older and newer Military Humvv 6.5 T/D (20 replies)
Stalls when cold (4 replies)
Gasoline with a bit of diesel. (5 replies)
6.5 stalls when warmed up (0 replies)
Help understanding how to flush with Cascade? Is there a better way? Please chime in. (9 replies)
Best 6.5 t/d marine injectors (11 replies)
6.5 bad head. Passenger side. (9 replies)
1995 6.5 t/d vs. 1994 Cummins 12v (5 replies)
Ted's Pull Outs (4 replies)
Oil spray nozzles (5 replies)
6.5 non turbo to 6.5 turbo questions (5 replies)
Head flow data wanted (2 replies)
98 motor in a 95 truck (5 replies)
Glow Plug Inhibitor Switch VS Cold Advance Switch (0 replies)
questions about 1993 trucks (3 replies)
Help needed please... Which one..? How to...? Cooling repair/mod? (15 replies)
fuel filter housing (3 replies)
6.5 Valve seals (3 replies)
6.5 diesel (0 replies)
Hot Ground (4 replies)
Ungrounded..... (3 replies)
Hard to start when cold (0 replies)
Gauges wont work (12 replies)
new to diesel (6 replies)
oil cooler plugged (4 replies)
dtc code 380 (1 replies)
Help with a 6.5 non turbo (7 replies)
Dropped exhaust valve (4 replies)
push rods (1 replies)
6.5 turbo diesel max speed 25 mph (4 replies)
Can you put a lift pump on a 1995 6.5 diesel? (1 replies)
Knocking passenger side (3 replies)
Dumb Luck (4 replies)
New Rebuild Stumbling At Idle (1 replies)
6.5 dieing constantly (7 replies)
Squealing noise (4 replies)
Having issues (11 replies)
1995 GMC 3500HD 6.5 Turbo Diesel (2 replies)
Changing from electronic to manual ip (5 replies)
First Diesel truck, only ever owned tractors (40 replies)
Code 78 with Turbo Master (0 replies)
membership ??? (1 replies)
boost psi question (1 replies)
0w40 for the 6.5? (6 replies)
I'm looking for a turbo return line kit for a 6.5 turbo diesel, similar to what Raced (1 replies)
6.5 starter (10 replies)
Valve covers are leaking. While my covers are off is there anything I should look (7 replies)
New to forum need help with my 6.5 (6 replies)
Thought idle and stalls (6 replies)
Best mechanical pump? (17 replies)
95 6.5l 2500 GMC - Fuel Problems (3 replies)
1997 6.5 turbo diesel losing power (5 replies)
2000 Heads (3 replies)
Oil high (9 replies)
4l80e recommended oil (3 replies)
Air compressor (7 replies)
Smoking Under Power (0 replies)
1995 C2500 Tach (1 replies)
Best coolent (1 replies)
how to test the rpm/oil pump drive? (0 replies)
Glow Plug Relay Not Switching (3 replies)
High boost pressures at interstate speeds (11 replies)
hello everybody 6.5 newbie here (9 replies)
oil pressure gauge (4 replies)
Engine Performance Diminishing (19 replies)
fast=smokier (10 replies)
loss of tack,power stearing and power brakes (5 replies)
Thanks Everyone, but one more issue (8 replies)
6.5 air bound in fuel and not shifting into 4th gear (18 replies)
Ticking (0 replies)
Dreaded starter bolts (14 replies)
Flucating Temps (15 replies)
smokey haze (25 replies)
knocking? 6.5td (6 replies)
94 SES light at throttle (1 replies)
Trans acts up then fine (10 replies)
93 6.5 K2500 - what transmission (2 replies)
Oil leaks #2 (0 replies)