Hello. i have a problem with the p/s on this old mustang. it seems the p/s control valve that controls the hydraulic ram was replaced because it was leaking fluid. now the steering wheel kind of vibrates when turning either way with the car at a stop. the control valve was replaced again but the problem is still there. anyone know how i would go about diagnosing something like this? thank you
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backfiring is ignition of the fuel mixture while an inlet valve is still open. Check firing order as there may be a HT lead crossed . If it backfires then the mixture is burnt in the inlet manifold so there is nothing left for the cylinders so it will stall. If you are running holley carby then check the power valve for a hole in the diaphram Check for vacuum leaks. check ignition timing is correct and not too far advanced. if the HT leads are touching each other this will induce a spark in the wrong cylinder --use lead spacers from an auto spares shop
Not exactly know what you mean. Could you explain the problem in a little more detail? I own a 68 Mustang and restore, build early iron Mustangs for other customers. Are you using the "old school" power steering system with the ram and valve? Let me know. My email address is email@example.com. Our website is www.tiqauto.com