Tags

6.5l

Low (fuel) pressure switch that closes at <= 5 PSI

This is for a 1996 6.5L TD ambulance which weighs approx. 12,500 lbs. Currently using a 1993 lift pump and have been happy with the higher pressure, but I want more. Right now idle is 9-10 PSI but it will drop down to 1-2 PSI at WOT. I plan to have 2 lift pumps inline. One will run constantly...
- Angelo
- Thread
- May 23, 2023
- 6.5l 6.5td chevy 3500 fuel line fuel pressure pressure switch
- Replies: 5
- Forum: Engine Performance + Maintenance
6.5l diesel leak dripping from bottom of starter. How to locate the problematic line

On my 1996 K3500 6.5L diesel I noticed severe dripping from under the starter. It smells and feels like diesel fuel. The fuel lines have never been changed. I know there are return lines going back to the fuel tank. Is there a map or diagram showing all the fuel lines in this truck? I've posted...
- Angelo
- Thread
- Mar 18, 2023
- 6.5 6.5 diesel 6.5l chevy 6.5 diesel fuel economy fuel line gasleak leak leaking
- Replies: 4
- Forum: Engine Performance + Maintenance
Leak in front of transmission pan on '96 K3500 6.5L 4x4

Seems like a leak coming from between oil pan and transmission pan but I can't identify what this piece is. What's flowing out seems to be oil or transmission fluid or front differential? It is visible in pics. The bolt on this piece was totally loose when I crawled under a few weeks ago but...
- Angelo
- Thread
- Nov 3, 2020
- 6.5l k3500 leak oil leak
- Replies: 5
- Forum: Engine Performance + Maintenance
No radiator cap on 1996 6.5L. How to drain and how to fill

Probably a dumb question. I read that this must be a fully pressurized cooling system since there is no radiator cap on either side, only at the overflow reservoir. What would be the procedure to refill with coolant? I see a bleeder valve at the top of the radiator hose. Do I turn out the...
- Angelo
- Thread
- Oct 16, 2020
- 6.5 6.5l cooling system radiator thermostat
- Replies: 7
- Forum: Engine Performance + Maintenance
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Need some pointers on SAS

What's up everyone? I have a 1994 GMC Sierra SLE 6.5L N/A 4 speed with granny low ext cab short wheel base. Currently it's still running IFS and I would like to go Solid Axle. What kit do y'all recommend? I want to use the axles, t case and steering components if possible from a 70s or 80s 3/4...
- Alex_Warren
- Thread
- Jul 11, 2020
- 6.5l diesel manual sas
- Replies: 1
- Forum: Full Custom Suspension / Cages / Fab
Reworked 6.5L pipe dream

I have a lot of crazy ideas go through my head. This one seems like a fun one to ponder over. New technology has left the 6.5 in the dust, but what if some of that technology is slowly integrated in to her through almost a complete rework? Step 1. Start from the bottom and work your way up is...
- Kobo_Dyger
- Thread
- Sep 16, 2019
- 6.5l modifcation pipe dream
- Replies: 82
- Forum: Engine Performance + Maintenance
6.5L MAP issue

Hey all, I have a question about my Detroit 6.5L. For the most part, I know this engine pretty well & it has been a fun beast. I had the Diamond Eye turbo back back installed & now the damn MAP sensor keeps faulting out. I'm stumped. Is there a way to do a "bypass" or "delete"? I have replaced...
- Marc Elkins
- Thread
- Aug 5, 2019
- 6.5l detroit diesel map sensor
- Replies: 11
- Forum: Engine Performance + Maintenance