1990 cummings

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Old 01-29-09, 11:24 AM
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1990 cummings

my truck dies while I am driving, I do have power to the fuel pump and I have diesel to the injectors, anybody out there with the same problem?
 
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Old 01-29-09, 03:26 PM
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Not sure about the 1990, but I drive a 2001 3500, and you have to keep watch on your lift pump. You may have power to it, but if it isn't doing the job it can have catastrophic consequences to your injector pump.
I feel certain, too you are filling up and running fuel straight from the pumps. Did you notice the sticker stating the ppm of sulfur being reduced to accommodate 2007 and newer vehicles? Weeelll, you aren't lubricating your injector pump. You need to introduce one ounce of 2 cycle oil to every gallon of diesel at fill up. No more, no less. Then every 5th tank full, go without the oil to balance it all out.
Consider installing an after market lift pump. I use an Aeromotive racing pump. A little noisy, but very effective. Also, install a fuel pressure gauge so you can keep an eye on it. Low fuel pressure will kill your injector pump.
 
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