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  1. S

    2006 expedition, vvt solenoid + Noise

    It sounds like the #2 bank, driver side cam phaser isn’t locking at hot idle. Before doing anything else, I’d look at commanded cam timing versus actual using a scanner or ForScan Lite. I'd also be interested in knowing the VCT solenoid commanded duty cycle is/should be 0% at idle. At hot...
  2. S

    Ok. Now my a/c issues. What is this piece I circled and should the hose I'm holding go onto that lil nipple? Thx

    Pictures #1 and #2 are the vacuum hose from HVAC control to open or close the valve controlling coolant flow to the heater core. #3 is vacuum source to HVAC control and the 4WD IWE solenoid.
  3. S

    P0171 & P0174 OXYGEN SENSORS SYSTEM TOO LEAN INQUIRY

    Your Long Term Fuel Trims for both cylinder banks are saying the PCM is adding about 30% more fuel than the engineers mapped for the operating conditions you're doing. That points to a vacuum leak @99WhiteC5Coupe linked to and it seems to be a common failure line (I replaced mine preemptively...
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    2004 XLT - Just dies while driving or idle - No Codes

    My big boy is still on jack stands waiting for me to hit the ABS valve issue but in the meantime I've acquired a 2017 Kia Soul and have read multiple owners in the forums complaining of similar symptoms. More than one has replaced the crankshaft position sensor with success. The CKP doesn't...
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    Triton eating #4 spark plug

    This popped up in my YouTube suggestions this morning...didn't even search for it! Around the 13 minute mark FTM/Brian and his son go over a strapless plug. It starts off with diagnosing the usual ticking sounds. https://www.youtube.com/watch?v=uyexvVeBws4
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    Triton eating #4 spark plug

    I installed the Autolite HT series spark plugs back in 2013 after 6 of 8 original plugs broke coming out. At the time, I refused Motorcraft as a replacement. The Autolites came out about 4 months ago after 40K miles, came out without issue and looked great. We know getting to #4 is a PITA but...
  7. S

    Intermittent AC clutch

    They should be threaded onto a schrader valve, no (minimal) refrigerant is lost. I've never seen otherwise.
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    Intermittent AC clutch

    If you're confident system pressures are correct with the compressor turning, I'd check the high and low pressure cut-out switches. The high pressure switch (at least on my '06) is up by the windshield fluid fill on the liquid line. Remove the connector and jump the two wires in the pigtail...
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    Explain rear Differential and pinion to a dummy. 2005 XLS

    The differential carrier is what you see under the vehicle with the axle shafts and driveshaft attached, most folks simply call it the "differential". The differential itself is inside the carrier and it is what the ring gear bolts to, it contains the spider gears and side gears. Not a bad...
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    Driveline goes "brrrt"

    Hey Bill, I keyed in on 3 things you said: (1) Yours is AWD, (2) It happens after off throttle then back on throttle anything but softly and (3) it's felt through the steering wheel. It got me thinking the Integrated Wheel Ends (IWEs) Ford uses to lock / unlock the front hubs to the...
  11. S

    front AC

    Possible culprit is the expansion valve for the front evaporator. If the blend door is stuck warm, and the heater coolant valve is open, you’d get warm to hot air. It doesn’t sound like that is happening if I read correctly. Putting gauges on the system will give more insight.
  12. S

    Vacuum hoses

    Mine is an '06 with 4WD. The easiest place to lose track IMHO is the area aft of the battery where the climate control and 4WD solenoid hook up.
  13. S

    Replacing DISCARD NUTS on front upper arm

    Got this from Varsity Ford Parts. No guarantees here but maybe something to investigate--they're available at $2.88 each. Ford calls it a "Strut Nut" but many other applications. Part Number: W520216-S441 Positions: Left Lower, Left Rear, Left Upper, Right Lower, Right Rear, Right Upper...
  14. S

    Engine hesitating

    whtbronco and EngineerMike hit the highlights and it could be any of those things, including the Variable Cam Timing (VCT) system...solenoids, phasers going bad, etc. If you have a trusted mechanic I think diagnostics are a good course rather than guessing. If you're comfortable with a...
  15. S

    ABS Hydraulic Control Unit Leaking Dump Valve

    Hi All, Earlier this week after starting the Expedition for the first time in a few weeks, I noticed the brake pedal going to the floor (more easily than in the past...it's been getting worse) with the engine on / vacuum to the booster. I replaced the master cylinder though I knew that...
  16. S

    Melling M340HV A Problem with VCT Solenoids...?

    Following up on the M340HV oil pump. Finally got the Expedition of the garage (last week was spent on brakes issue) and out for a test drive today. It now has the Melling M340. This time both banks didn’t retard 53 degrees almost instantly after the first stop sign. I’ll stand by my original...
  17. S

    P0435

    Get the FORScan Lite app for your phone and a compatible OBD Bluetooth adapter. You can see cam advance (retard), advance error, solenoid duty cycle and a lot more to take the guess work out. It’s nice to have a second set of gauges in a way to see how the engine and drivetrain are doing.
  18. S

    2005 Expedition timing chain kit replacement. Can a (fairly capable) newbie do it? (moral support thread)

    I’ve been using Varsity Ford Parts online and have been very pleased. Of course you have to get the individual components but at least you know it’s Ford.
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    Melling M340HV A Problem with VCT Solenoids...?

    The roller followers first. Doing it by the Ford Service Manual they go back in after you get the cam timing right and there's no shortcut. Each valve spring is compressed after the cams are installed and putting the follower back in is an adventure for each valve--sometimes they're easy and...
  20. S

    Melling M340HV A Problem with VCT Solenoids...?

    Thank you whtbronco, always appreciate your posts. I have to provide 2 more observations. With the front cover off and rotating the engine by hand, solenoids removed, oil spurted out of the right side solenoid housing such that it launched upward and landed near the fender well. Never saw...
  21. S

    Melling M340HV A Problem with VCT Solenoids...?

    Hi all, No question here, just posting an exasperating and totally unexpected outcome after swapping out an M360 for an M340HV. 2006 Expedition. Quick background, all timing components along with lash adjusters and roller followers replaced in 2017 at 100K miles due to a bad phaser. At the...
  22. S

    P2195 after catalytic converter install…

    When all is well, the #1 sensors are constantly going back and forth from rich to lean based on the PCM varying the injector pulse width. The PCM added more fuel (a lot more) and did not see the O2 sensor respond. That means a lot of air is getting to the sensor (or it's bad, wiring...
  23. S

    P2195 after catalytic converter install…

    Going from memory, the wheel well liner has to be removed to get access. Can you get a visual on the sensor as is? I suppose it’s possible to get a bad sensor out of the box, maybe it’s an installation issue. I remember making the connection was much harder than disconnecting it, but the...
  24. S

    P2195 after catalytic converter install…

    I replaced my passenger side exhaust manifold going on 2 years ago and took the opportunity to replace both #1 O2 sensors. The passenger side sensor is the most difficult to replace and get the connector on and off. I’d check that if you can—connector integrity first. Mine is an ‘06 5.4 3V...
  25. S

    Intermittent vibration at 70-75 MPH? - SOLVED!

    Nice work and thanks for sharing! I didn’t know until a few days ago our front driveshafts are spinning in 2H. I don’t like it…. My Bronco’s front driveshaft hasn’t rotated in years…the way it should be.

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