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  1. stamp11127

    High pitched noise from brake peddle

    Probably a leaking brake booster. You can clamp the rubber hose with a pair of vice grips to block the vacuum with the engine running. Test the pedal to see if it stops.
  2. stamp11127

    High pitched noise from brake peddle

    Is it only with the engine running? Does it change pitch when you press the brake pedal?
  3. stamp11127

    Battery dead - Resolved 6/23/19

    Leave your son stuck at work for another 8 hours and he will learn the hard way to turn off the electrical loads. Reminds me of when my son had to sit in the kiddie seat. He loved pushing the seat belt button which caused me to pull over and restrap the seat. One morning running late for...
  4. stamp11127

    Battery dead - Resolved 6/23/19

    I looked back over your readings in the first post. Recommendation - don't try to start the engine if battery voltage falls below 11.0 volts. The starter is a constant draw motor that will pull any combination of voltage/amps needed to operate. That means as voltage drops amp draw increases...
  5. stamp11127

    Battery dead - Resolved 6/23/19

    Really can't say you did the tests wrong without seeing the meter display. The 4.63 mA is extremely low reading for today's vehicle but 463 mA is slightly less than 1/2 A. The test is the same as before, just not pulling fuses. Let the vehicle sit without turning anything on for about 15 minutes...
  6. stamp11127

    No crank

    One of a few things: 1) engine seized 2) bearing on accessory item seized - keeps engine from turning 3) low amperage/voltage to starter - not enough juice getting to the starter
  7. stamp11127

    Battery dead - Resolved 6/23/19

    The one circuit that isn't protected by fuses is the alternator and it's output cable. If a diode shorts closed it will pull a battery down quickly. Do the draw test again with the output cable disconnected. Most mA draw should be in the 200-300 range with all the black boxes on vehicles...
  8. stamp11127

    No crank

    Here are the wiring diagrams for the 2004. Let us know if you need help reading these. You will always have voltage drop since it is adding a parallel circuit and electricity will follow both paths. The problem is when there is too much of it on the main circuit.
  9. stamp11127

    Is it normal A/C performance ???

    The high side pressure is a good indicator of how well the condenser is condensing the refrigerant. When there are issues the high side pressure can get extremely high. One of our students forgot to turn on the condenser fan on the trainer he was using. The high side pressure was 450+, low...
  10. stamp11127

    09 expedition AC Warm at idle, cool while driving.

    Here is how we test the fan clutch on semi's. I do not recommend using your hand as shown. A newspaper or magazine is better - you avoid beating your fingers. You only want to slow down the fan slightly - not jam something into the radiator.
  11. stamp11127

    Is it normal A/C performance ???

    You have the worse case scenario - hot climate and black on black vehicle. That combination is a heat magnet. To get an accurate performance condition you need to know the systems static pressure, the low and high side pressures, and ambient temperature when you take the readings. Back to the...
  12. stamp11127

    Died. Cranks, but no start

    Well like the old Dragnet TV show....just the facts Ma'am. Fuel Pressure is: need psi readings Impulse signal from crank sensor: Y/N Impulse signal from cam sensor: Y/N Signals indicate timing between cam & crank is correct: Y/N PCM firing injectors: Y/N PCM firing coils: Y/N It's so easy a...
  13. stamp11127

    DLR relay location

    See if you have the aux relay box 1 at the front left of the engine compartment.
  14. stamp11127

    Electrical problems 2000 Expy - Resolved

    Have alternator tested or take the voltage reading again with a second meter. The 15.6 reading is about 1v too high. Make sure the battery connections are clean and tight before proceeding. To load test the battery in the car, disable the fuel pump, connect meter to battery posts. Crank the...
  15. stamp11127

    P0016

    Guess we need to get out the mind reading caps again.
  16. stamp11127

    P0016

    The scanner did tell him what the issue is. The scope would tell him which component is out of time instead of hours wasted tossing parts and not correct the issue. These are the tools of the trade now, you need to stay up to date or step aside and take it to a "pro" . And if you think all of...
  17. stamp11127

    Crank and cam timing

    Certain codes will pop up regarding timing issues between the two sensors. Here is one method of determining if they are out of time with each other. You don't need a picoscope - any old 2 channel oscilloscope will work.
  18. stamp11127

    P0016

    Bank 1 is out of time. https://www.obd-codes.com/p0016 Here is how you find out how much:
  19. stamp11127

    Died. Cranks, but no start

    What pressure is "good"? It is similar to when you go to the doctor. They check how many beats per minute your heart pumps, not if it is pumping.
  20. stamp11127

    Died. Cranks, but no start

    Gasoline engines need 3 things to run: Air, Fuel and Spark It's not air - we're still breathing Fuel depends on the amount of pressure in the line Spark - kill power to the pcm and no spark Check all fuses for the pcm with a meter or test light Is the theft light blinking fast or slow?
  21. stamp11127

    Front AC blower not working

    Here you go, have some fun. The blower motor is controlled by a module and is on a 40amp circuit. I would suspect poor connections and undersized wiring first.
  22. stamp11127

    Front AC blower not working

    John how are you with DC electric and wiring diagrams?
  23. stamp11127

    Front AC blower not working

    Welcome to the site. Which climate control system does your Expy have? They have manual or the fancy EATC.
  24. stamp11127

    2004 5.4L - Removed Transmission. Engine Rocked Back?

    I've always supported the engine by placing a 2x4 at the back of the oil pan with a hydraulic jack under that. There is a bunch of plastic on these engines now, you don't want to bust any of it.
  25. stamp11127

    2004 5.4L - Removed Transmission. Engine Rocked Back?

    I've always supported the engine by placing a 2x4 at the back of the oil pan with a hydraulic jack under that. There is a bunch of plastic on these engines now, you don't want to bust any of it.

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