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  1. stamp11127

    A/C Diagnosis Chart from Sanden

    This should help out: https://www.sanden.com/objects/SANDEN_SYSTEM_DIAGNOSIS_CHART.pdf This is for a txv system with the old style bulb. Principle is the same for an orifice tube system except that the drier is replaced with an accumulator after the evap. The orifice tube will be located after...
  2. 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.
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    Cranks but no start

  4. stamp11127

    Alternator controlled by ecm/pcm

    The following link was provided by "theoldwizaed1" in a thread dealing with a no charge problem. It shows the need for troubleshooting the electronics with the proper tools (scope) that most diy'ers don't have. It also indicates an apparent design flaw with validation of alternator output...
  5. stamp11127

    DIY Smoke Machine

    An easily made tool for determining the source of vacuum or exhaust leaks.
  6. stamp11127

    A/C 101

    Study guide for the 609 cert is at the bottom of the page and gives you the info on how the system works...
  7. stamp11127

    Alternators

    Here is a description on how they work and common failures. http://www.aa1car.com/library/charging_checks.htm
  8. stamp11127

    Front Rotor R/R

    Here is a good video on how to remove stubborn rusted on rotors from the front of a 4x4 Expy. He also has a few other techniques that can be applied to other work on the vehicle. https://www.youtube.com/watch?v=PwOGqxjeva4 Thanks go out to Bedrck47 for suggesting this video.
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    Battery 101 - wet cell and agm

    The figures that follow are for lead acid wet cell batteries - pop top and maintenance free and not for AGM batteries. The typical car battery consists of 6 separate cells When fully charged each cell will produce 2.1 volts dc. Six cells at 2.1 volts equals 12.6 volts. So fully charged battery...
  10. stamp11127

    A/C troubleshooting w/gauges and temps

    Troubleshooting with gauges: Troubleshooting with Gauges FAQ Superheat and subcooling - what it means and how it applies to auto air: http://ricksfreeautorepairadvice.com/heat-load-test-orifice-tube-system/
  11. stamp11127

    A/C pressure chart for r134a

    This should help as a guide for what you need: http://acprocold.com/faq/r-134a-system-pressure-chart/
  12. stamp11127

    Hobart welders

    Anybody using the Hobart 210 MVP? I have an itch I may scratch in the next few days.
  13. stamp11127

    Voltage Drop Testing for No Start

    Here is a link on how to perform voltage drop testing on circuits. You use this method to test the quality of your connections instead of breaking the circuit open and cleaning the connections hoping that will solve the problem. Here is another one that explains it in basic terms:
  14. stamp11127

    Heated Mirrors

    Sorry guys, I double posted a reply and chose the wrong option to delete it, blew off the entire thread by mistake. But where we were at, the factory wiring may already have the connector in the door for the heated mirrors.
  15. stamp11127

    1st Gen Navigator Info Needed

    The wife has the "I wants" - more luxury in the ride. I'm doing some research on the Navi's before possibly pulling the trigger on a 1st gen. Popped the hood on one yesterday, read 5.4 - cool - then noticed "32 valve" - damn that is tight in the bay. Heater core hoses disappeared towards the...
  16. stamp11127

    Hard Shifts

    4R100 Links: http://www.expeditionforum.com/f73/4r100-hard-shifting-no-more-24780/
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    Multi-meter guide

    If your needing a meter check 'ol Dave out. He calls them as he see's them... EEVblog #75 – Digital Multimeter Buying Guide | EEVblog - The Electronics Engineering Video Blog Using the multimeter basics for auto:
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    What the GEM controls

    These are a few of the inputs/outputs: Defrost Relay Ground Park/Headlamps On input Interval Delay Input Park Sense Wiper Hi/Lo Relay Run/Park Relay Control Windshield Wiper Mode Select Front Washer Pump Door Ajar Indicator Seat Belt Indicator Left Front Door Ajar input Left Rear Door Ajar input...
  19. stamp11127

    Your Battery Keeps Going Dead... The Parasitic Draw Test

    Here is a link on how to test for a parasitic draw on the battery. https://www.youtube.com/watch?v=KF1gijj03_0 Thanks to Eric the Car Guy. Another method that doesn't involve pulling fuses. http://pics.tdiclub.com/data/500/TSB_27_08_04_Matrix.pdf
  20. stamp11127

    Fuse Testing 101

    This is a link on how to test fuses with a test light. There is no need to pull the fuses to check which saves time. You can make your own or buy cheap to decent models. https://www.youtube.com/watch?v=ksrsXwwukFc Same idea but using a multimeter - dvm - dmm - voltmeter etc...
  21. stamp11127

    Possible GEM "Bandaid" for a leaky windshield

    Bedrck46 sent me some pics of the GEM pc board of which I was hoping to see a few standard micro-relays. Well that's not the case. It is entirely SMT(surface mount technology) - IC's, caps, resistors etc. That leaves fixing the windshield leak or disassembling the GEM and applying a moisture...

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