Vacuum pressure does not release when engine is off
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Vacuum pressure does not release when engine is off
Good morning,
2007 F150 - Upon cold start and drive the hubs are fine, but once the engine warms up and you shut it off the vacuum pressure does not seem to release (its holding a vacuum). It is my understanding that it should release in 10 minutes or so.
If I start it when warm and take off, the hubs grind until I stop and unplug the vac line going to the reservoir, then its fine again.
I replaced the hubs, actuators, vac lines to hubs, and the solenoid prior to the issue showing up.
Any ideas? Thank you!
2007 F150 - Upon cold start and drive the hubs are fine, but once the engine warms up and you shut it off the vacuum pressure does not seem to release (its holding a vacuum). It is my understanding that it should release in 10 minutes or so.
If I start it when warm and take off, the hubs grind until I stop and unplug the vac line going to the reservoir, then its fine again.
I replaced the hubs, actuators, vac lines to hubs, and the solenoid prior to the issue showing up.
Any ideas? Thank you!
