Sunday, January 8, 2012

Need help on a 1998 peterbilt 3406c Caterpillar engine that is surging.?

Everyone keeps saying that it's the fuel injection pump, but I've had it overhauled 3 times already. I think that if the problem was there, it would have been corrected by now. I've replaced the motor mounts, cab bushings, cab shocks, could it be something binding, could an axle be bent, any help would be appreciated. This pump is a manual pump.|||Could be dirty injectors. Clogged fuel filter. Clogged air filter. Or a dozen other things.|||The problem is in your fuel system. Does it surge at idle or going down the road?

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