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If any coils were bad, the misfire wouldn't go away with more throttle.
Matter of fact, on the post 2005 2-valves, is there a vacuum-actuated fuel pressure regulator? Might want to check if this is actually hooked up and working. The misfire might be a too-rich condition which clears up with more go-pedal
If any coils were bad, the misfire wouldn't go away with more throttle.
Matter of fact, on the post 2005 2-valves, is there a vacuum-actuated fuel pressure regulator? Might want to check if this is actually hooked up and working. The misfire might be a too-rich condition which clears up with more go-pedal
there is a vacuum operated fuel pressure regulator. I saw it yesterday and more interestingly ; many months ago I found the vacuum hose unplugged. I believe I posted it on here (maybe the 1968-2103 van section) when I found it.
I plugged it in and expected changes in engine behavior. I noticed no difference. Strange.
make sure the fuel pressure regulator is getting vacuum at idle - Do you have a schrader (tire) valve on the fuel rail so you can check the fuel pressure easily? If so, it should be 28-30PSI at idle, and 38-40 with the vacuum disconnected.
I went back to the Ford dealer to return the coil and I spoke to thE Ford technician that diagnosed my van.
Im colorblind, but he told me the spark plug has a green tip which indicates they were factory installed. He was amazed that they even worked at 314,500 miles. Me too 314,500 miles
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