VP44 or What
#1
VP44 or What
Been haveing problems for a long time. The eng. surges eradict but only slightly. When at hwy speed say 65 you let off and rmp get to about 1500 then put it in nuteral rpm drop quick to about 700 then pick back up,if A/C is on it almost dies. No white smoke no black smoke fuel mileage is normal. And when you rev up the eng. then it starts droping it has a little rev up right before idle. I here common rail motors do this, why would a vp motor do this. I changed the inj. to 75 hp and it started this so I had rv 275's rebuilt and put them back in and still the same no change.I dont no if this means anything but rpm gauge bounces a little at idle. Also I loosen inj. lines so there would not be any problem with cross over tubes lineing up with inj. and retighten. I always wash eng. where inj. lines go into head so there is no dirt getting in there. I dont know how much more I can do.
Thanks for your help.
Joe
Thanks for your help.
Joe
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