Delivery Valve
#1
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Delivery Valve
I had my intake and exhaust valves adjusted by my local shop and a couple of other things done, and the mechanic asked me about my delivery valve. I have no symptoms of a bad delivery valve, but what ARE the symptoms of a bad one? I have 335,000 on the truck and have never done anything to the delivery valve. What happens to them? Do they wear out?
#2
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I think your mechanic means Overflow Valve. Yes, they do weaken over time/mileage = slower throttle response and slightly reduced inj timing due to lower pressure. Search Overflow Valve.
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