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Question about the Shimmed FPR...
Well, I just shimmed my FPR and it really smoothed out my idle big time. I'm just wondering if the spring in my FPR was getting tired or if the OBS trucks' stock fuel pressure was way below the 70psi or so that it's supposed to be making. (I have yet to check fuel pressure but, nothing bad has happened)
Either way, if the truck, in new condition, made a decent amount of pressure, wouldn't the fact that the shim fixed my idle indicate that my spring was getting weak?
'96 F250 ExCab 4x4
4" Exhaust Shimmed FPR Tymar 4" Lift Front End 315/75R16 BFG All Terrains Optima Red Tops
*Planned mods/add-ons -- Electric Fuel, Headache Rack, Rear End Replacement, Injectors, and BTS