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Q:will this make low psi at fuel rail test psi get 5 to 10 psi replace fuel pump
A:Hello Casey! No, the R4810 Relay cannot cause low fuel pressure. If it fails, there would be zero fuel pressure. Low fuel pressure could be caused by a weak fuel pump, a defective fuel pressure regulator, or clogged filters or pinched fuel lines.
Q:where is this relay located on a 2001 Dakota 4.7l
A:Hi Brandon, glad to assist you! The fuel pump relay is located in the Power Distribution Center (PDC) under the hood.