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Today, 16:29

DmaxMaverick replied to a thread 96 Sierra fuel guage bounces as fuel sloshes in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

We're still here. This is what it looks like when all the questions have been asked and answered. New questions are few. If replacing the sender...

1 replies | 11 view(s)

Today, 15:38

drgerry started a thread 96 Sierra fuel guage bounces as fuel sloshes in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

It doesn't look like anyone lives here anymore . . . . I hate to see this place go . . . . If anyone is home: my 96 6.5L fuel gauge bounces with...

1 replies | 11 view(s)

Today, 00:17

benp started a thread Metal found in oil filter in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

I have a Lexus LX470 with a 6.5Lt turbo optimizer and 4L80e trans. Purchased it with 40K km on both engine and trans. The DB2 fuel pump was tuned to...

0 replies | 7 view(s)

Yesterday, 14:13

DmaxMaverick replied to a thread 1500 ECM swap to a 2500 ECM? in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

As previously suggested, a John Kennedy custom tune will settle all of it, and boost power, if you want. OBD-II PCM's are VIN specific, and using...

4 replies | 39 view(s)

Yesterday, 10:50

Yukon6.2 replied to a thread 1500 ECM swap to a 2500 ECM? in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

I had John Kennedy do a rebuild and tune on my computer for the 2000 Burb and highly recommend his work

4 replies | 39 view(s)

Yesterday, 08:56

a5150nut replied to a thread 1500 ECM swap to a 2500 ECM? in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

If John Kennedy is still around his website or a call yo him would clear this up real quick. He's an advertiser here you can find him just down the...

4 replies | 39 view(s)

01-24-2026, 15:33

Robyn replied to a thread 1500 ECM swap to a 2500 ECM? in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

The trannies are different. I am not sure but I think there will be a problem swaping the ECM. If you want a bit more power a custom "Tune" or chip...

4 replies | 39 view(s)

01-24-2026, 07:38

drgerry started a thread 1500 ECM swap to a 2500 ECM? in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

'96 1500 shortbed sierra, 6.5L with emission crap removed, replaced the plenum too, 3.5" bent exhaust, kennedy crossover, timing gears, PCM cooler...

4 replies | 39 view(s)

01-22-2026, 12:54

More Power replied to a thread Lil Red - Duramax 6600/Allison Conversion/Swap & OBS/NBS Dash Conversion in Diesel Conversions & Swaps

I've been corresponding with Dylan for a while now, as he works through his 1999 OBS Chevy Duramax swap. This is a great looking truck, and he's...

90 replies | 211605 view(s)