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Pickups Diesels Diesel Fuel Economy and chips
391 messages, Last post on Oct 28, 2009 at 4:28 AM
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I am about to purchase a 2006 4x4 quad cab short bed Dodge w/ cummins. Ive been reading this message board quite a bit and have a couple of questions... I will be 95% on the highway, empty 90% of the time. so I am mostly interested in getting better mileage... can someone tell me the best thing to do? I read somewhere about locking hubs, is that something that can only be done after-market? or can the factory do that? And the chips... are there any that will not void my warranty? thanks!
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Replying to: jaybird8 (Jan 31, 2006 12:05 pm) Locking hubs - probably can be added at the factory for a substantial price. I would buy aftermarket and install them myself. A buddy of mine said it can easily be done with limited tools in about 2 hours per hub. Warranty and Chips (Quadzilla)- it plugs into your exsisting wiring at your fuel rail. If you have to take your truck back for factory repairs;unplug the chips wiring harness and plug your factory connectors back in, remoave chip wiring harness and chip (takes about 10 minutes). The factory can not tell you ever had this chip on your truck. This chip only tricks your computer into giving more HP. It does not modify your factory settings. If that makes any since?
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Replying to: deiselden (Feb 01, 2006 8:21 am) Locking hubs... are these like the red dial that came with my '93 toyota truck? where you have to get out and turn dial on the wheel? if so, how does that work with the factory wheels? Chips... increased HP isnt as important as fuel economy to me, however if the chip means better fuel economy and a bonus of more HP thats fine with me. would you still recommend getting the quadzilla? thanks! |
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Replying to: jaybird8 (Feb 01, 2006 8:52 am)
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Replying to: jaybird8 (Feb 01, 2006 8:56 am)
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Replying to: jaybird8 (Feb 01, 2006 9:50 am) Quadzilla - yes I would still recommend this chip. I rode in a Ford 6.0 with a Quadzilla race chip yesterday and was very impressed! He can actually put his dually in 4wd and smoke all the tires. I know that I or few others would need to try this, but I did think it was impressive for a dually to be able to do this. |
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Replying to: jaybird8 (Feb 01, 2006 8:56 am) |
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Replying to: jaybird8 (Jan 31, 2006 12:05 pm) |
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Replying to: cflowers (Aug 30, 2005 2:41 am) you provided some great info that many of us could benefit from. however, you failed to give us specific info on a number of things such as: the power-module on your rig, and overall the "wise mans" set-up for similar diesels.  many of us understand the general guidelines here, but are totally confused about really successful diesel set-ups. so please ... spare us the incognito crap and give us specifics on your set-up and/or other recommendations.  in closing can anyone out there recommend a simple, and if possible, inexpensive set-up for 2000ish ford/dodge diesels? i want to maximize mileage, run vegetable oil and/or biodiesel and if possible increase hp. thank you mucho mucho mucho |
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The light-duty diesel trucks by GM all feature a lift pump designed to deliver fuel from the fuel tank to the injection system. Their importance to the overall operation of the engine cannot be overstated. Without proper lift pump pressure and delivery flow, the injection system in these trucks will not be able to function properly. Testing lift pump pressure is a relatively easy task and one, which should be done periodically to assure that the lift pump is healthy. Heath Diesel produces fuel pressure test gauge kits for the 6.5 diesel and these are listed below. GM 6.5 Diesel The GM 6.5 turbo-diesel engine found in the ’92-’00 truck, Suburban and step van is supplied by a frame-rail mounted electric lift pump. This pump is powered by a relay when the engine’s starter in engaged and by an oil pressure switch while the engine is running. It is designed to supply the fuel injection pump at a pressure of approximately 7 psi at idle. The more important fuel supply pressure reading, though, is that measured while the vehicle is being driven. The Heath Diesel Power fuel pressure test gauge kit for these 6.5 vehicles is connected to the fuel filter drain cock which is located near the thermostat housing at the front of the engine. The drain cock features an outlet nipple onto which a drain tube is installed. The HDP Fuel Pressure Test Gauge (Part #HDP1456), features a specially sized hose, which is slipped onto the nipple of the drain cock after the drain hose is removed. The HDP test gauge is taped onto the exterior surface of the windshield for viewing while the vehicle. While driving, fuel pressure should not go below 2 psi and should, more ideally, be in the range of 2.5-3 psi. Heath Diesel Power supplies a Heavy-Duty Version of the Factory Electric Lift Pump (Part #HDP1300). Heath Diesel Power also supplies the relay and oil pressure switches used in these vehicles here. Feel free to contact Heath Diesel Power with any questions you may have regarding issues you are experiencing with your vehicle. We are always happy to help. - Bill Heath |
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