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Message: [QUOTE="Kowboy, post: 1537503, member: 29363"] I had a similar issue with the fuel selector valve. I have a fuel pressure gauge, and could watch my pressure drop off from 63 psi to about 20 psi. Truck would lose power if I did not keep the pressure above 35 -40 psi. I have a ZF6 and was just above idle in 4th, any faster and the pressure would drop off and then I would lose power. Lucky for me this happened just a couple of miles from home and I was able to limp back home. If you do have low fuel pressure you may only see it with a load on the engine. It could be the pickup strainer in the tank is plugged. Plugged fuel filter. Bad fuel pump, or regulator. How much fuel is in the tanks? Did you try both tanks? [/QUOTE]

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