6 5 Diesel Lift Pump Relay Mod

This is a show and tell video of the carter lift pump kit sold by leroy diesel.

6 5 diesel lift pump relay mod. Vin codes s and f. While other kits claim to be bolt on replacements then you have to drill holes cut lines and add clamps. This is a plug play lift pump relay harness for all 95 02 6 5 diesel pick up truck and suburban applications. Here are a couple of photos as attachments of the location of the oil pressure sender from a 1995 6 5 turbo diesel suburban.

If the ops fails the lift pump relay will still power the lift pump will the engine is running. 2 upgrade the lift pump lp system. 1 of 3 go to page. This switch fits all 6 5 engines all applications from 92 00 on c k pick ups g p vans suburbans and cab chassis combinations.

Looking at the wiring diagram if this were true there would be no reason for the oil pressure switch shows that the oil pressure switch is the prime source once the engine oil pressure is above 28 kpa. It takes the heavy current load off your stock system and runs full battery voltage to the lp. We are asked everyday what should i do to my 6 5 diesel truck. As long as the ecm is seeing that the engine is rotating it will.

3 oil pressure switch sender ops relay modification to take the load of the lift pump lp off of the ops because it burns the contacts within the ops and causes the lp to stop working during engine operation. Here is a list to get you started. It turns into a cobbled up mess ours is truly a bolt on it comes with the right fittings a mount that bolts directly to the existing holes and the correct plug its 100 gph 9 to 13 psi our. On the next page i provide a wiring diagram to add a relay and also add fuel priming during the gp wait to start wts time like obd2 trucks have for easier starting.

If the fuel relay drove the lift pump during normal operation. Finally a reliable replacement upgrade for the pathetic stock lift pumps on 6 5l turbo diesels. The factor discription is very poorly written leading one to beleave that the fuel pump relay runs the lift pump most of the time. Big blue dsl registered.

Replace your stock oil cooler hoses with a set found in our engine lubrication page the stock hoses are very failure prone if they let go you will destroy an engine. Just figured i would share with everyone my mod that i just installed in the burb i wanted to do the ops relay trick to keep my carter pump and ops happy and figured that a. Also turbo charged h1 hummers thru 2001. And the lift pump relay will both power the lift pump on the obd ii systems post 96 model year.

My lift pump relay mod. This will dramatically help performance and support your engine for the following. Joined may 3 2010 174 posts. That allows your lp to opperate at its full potential and greatly reduce the need to change oil pressure sensor ops and or lp.

From ssdiesel supply tm the 6 5 td specialists a brand new hd gm transfer pump oil pressure switch sending unit aka.