Forum Discussion
theoldwizard1
Mar 13, 2020Explorer II
d.whitworth wrote:
... we put a fuel pressure gauge on today and drove, at fuel rail it is reading around 25, it drops to around 10 when it falls on its face.
Clearly a fuel pressure issue, but why ? Disconnect and plug the vacuum line to the pressure regulator (same as WOT). You should get a high (above 25 psi) constant pressure, even when driving.
If not, you have an obstruction somewhere.
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