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jd 4440

travis The oil pressure gauge begins to make noise once the motor warms up then the needle starts bouncing around. What cold be the cause? The sending unit and wire are new. The ground is also good. Thank you in advance for the help.
Dave seen this #1 low oil level you may need to add a little over the level on the stick if you are on lots of hills and grades
#2 to light weight of oil depending on your part of the country warmer regions need a thicker oil also consider using straight weight oils
#3 older motor loose parts not saying it's worn out just a little older again as in #2 a little thicker oil
#4 bad gauge doubt it
#5 bad oil filter
#6 bad oil pump /regulator hope and pray not



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