Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

injectors

Old 02-18-2008, 12:41 PM
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injectors

when should you replace your injectors? Do they go bad over time?
Old 02-18-2008, 01:29 PM
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Sometimes they fail but not very often! We have had 3 trucks with over 250k on them and never had to replace an injector. I bet if you took care of it and ran some additives every now and then, they would last the life of the motor!
Old 02-18-2008, 02:31 PM
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Most people just replace them for the power increase...
Old 02-18-2008, 02:36 PM
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When an injector gets dirty the power loss is usually gradual. Thats why most people notice a huge increase with just a small set of aftermarket injectors
Old 02-18-2008, 02:55 PM
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I agree with haloman also. I just replaced mine at a little over 100000k and I noticed approx 2mpg gain.
I bought the truck used, so I don't know anything about it prior to me, but I felt the difference from the switch.
I also had a '01 6 speed bought used at 195k, replaced injectors at 220k and got same 2 mpg extra.

I put a lot of miles on my trucks, the slight increase of mileage is very welcome, even if there's the initial cost of injectors.
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