Question about 1999 Dodge Dakota
Could the sending unit be causing the problem. When I start up the oil pressure is up to around 80. As I drive it will fall to below 40 and then move back up to 80 again. The oil is full and it will do it with new oil and old oil.
Believe it or not....this is actually normal depending on which oil that you use. Some of the thinner oils will cause this to jump around and the thicker oils will make it jump around less. When you first start the truck the oil is thicker and will read a high psi then get lower with less rpm while the oil warms and then gets thinner then builds pressure again with more volume being put through the engine while you drive down the road hence going back up to 80 psi. This is typical winter issue with the Dakota's in general. I would only be concerned if the pressure bottoms out while driving or starting.
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Posted on Jan 15, 2009
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Posted on Jan 02, 2017
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