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  1. P

    Any idea what this is called?

    After removing, cleaning, and reinstalling the throttle body on my 5.4L I started it up and noticed a leak coming from a part mounted on the intake directly behind the alternator (see attached photos). A small hose connects to it and then to the throttle body. Does anyone know what it's called...
  2. P

    Wiring diagram for the EATC and Blend Door Actuator

    Does anyone have a wiring diagram showing the wire colors and where they go for the EATC and blend door actuator on a 99 EB 5.4? I'm trying to troubleshoot why my new actuator won't work. I tested it with a 9v battery and the motor runs. this is driving me nuts. I know it has to be something...
  3. P

    New Blend door actuator not working

    Hey there! New member here in AZ. I have a 99 EB 5.4 with EATC climate control. I replaced the heater core that had been leaking severely. When I got the dash back on I adjusted the controls with the engine running while watching the blend door actuator under the dash. it moved but not as much...
  4. P

    Here's one for ya...

    The rubber boot on my PCV valve is vibrating loudly when the engine idles. The vacuum is pulling so hard that it's pinching the boot. This is a 5.4l engine. I replaced the valve and nothing changed. I must be honest that I'm not even sure what the PCV valve actually does, but it is clearly...
  5. P

    This @#!~* #4 cylinder!!!

    I've got a 99 EB 5.4. How do you guys access the #4 cylinder? I'm trying to change the coils and plugs and I'm going crazy trying to get at it. The hoses have funky clamps that I can't figure out how to remove. What am I missing here? Any suggestions would be greatly appreciated.

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