1995 5.9 turbo diesel auto/ rpm fluctuations??? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 01-27-2006, 04:01 PM Thread Starter
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1995 5.9 turbo diesel auto/ rpm fluctuations???


I just bought a 95 Ram 2500 with the 5.9 turbo diesel and 229,000 miles. Just lately the rpm gauge began to constantly flutter up or down when cruising around 45-55 and at around 75 mph. It will jump up or down 500 rpms and feel like it cant decide what gear to be in. I cant tell if this is an engine, tranny or computer probem... Can anyone help me?


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post #2 of (permalink) Old 01-30-2006, 11:47 AM
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Re: 1995 5.9 turbo diesel auto/ rpm fluctuations???

its an ALT [alternator] problem or the wiring / the diesel takes the TACH signal from the ALT
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