Strange engine behavior

Joined
Jul 3, 2004
Messages
3,445
Location
Anchorage, AK
 
 
 
For those that don't know my rig, BJ70 with 13B-T and intercooler.
Over the past two days our temps went from -30C to about +3C. Since yesterday, when I get higher up in speed like from 45mph to 55mph, it feels like the truck is being buffeted from strong head winds, when there are no winds. It is real subtle, maybe like the fuel is not flowing at a constant rate. Can't do much expiramenting with different power and such due to the increase of slick roads from the warm up. The boost is still showing normal and EGT's are normal, oil pressure is normal. Would that maybe be signs of a fuel filter needing replacement? Each tank I add diesel additive, for anti-jelling. Thanks.
 
Joined
Nov 15, 2005
Messages
16
Location
Helsinki, Finland.
Here land of Santa you allways change fuelfilter before winter. Try also keep the fueltank full as possible. No moisture = no water. If you have water separator, make sure theres no water. Any airleaks?
 

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