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  1. Mobile Dan

    Sonic coolant consumption

    Poor man's radiator pressure test... Fill up completely with cold engine (do NOT spill any fluid on radiator!)...Cap on...Squeeze upper hose to feel how hard/soft it is...start soon as hose firms up, shut off engine and look for leak. If thermostat has not opened yet, radiator will...
  2. Mobile Dan

    WHAT WENT WRONG?? -- wheel bearings

    There are two classic mistakes made when "pressing in" that type of spindle/bearing/hub repair. 1. When pressing the bearing into the spindle, you cannot press on the inner race to accomplish that. It can damage the ball bearings and/or the surface they roll on. 2. When pressing the hub into...
  3. Mobile Dan

    Sonic coolant consumption

    This link has pics if you scroll down.
  4. Mobile Dan

    shift solenoid

    I couldn't find a schematic....but...
  5. Mobile Dan

    alternator charging, no voltage regulation

    Circuits K20 and A804 seem to have the same wire color. So look at all wires to PCM connectors. How many wires are RD/GY? Let's pretend you found one at Pin 12 in connector C1. So look through your info to figure out the function of the wire at Pin 12, C1. If that checks out to be correct, check...
  6. Mobile Dan

    unpluged elec connector

    Fog lamp wires are Violet /red stripe. Could you be more specific than "underneath the front end"? If I cut your van in half, that connector could be dangling anywhere under the front half.
  7. Mobile Dan

    Overheating problems

    "Started off after sitting all night engine would run rough for acouple of minutes then run smooth" Sorry to say it, but sounds like a head gasket. Intake might leak coolant into a cylinder overnight also, but you would probably have a foggy tailpipe after the engine warmed up, and you are not...
  8. Mobile Dan

    Rear disc brake problems 2010 Camry

    I've seen "compression unions" on plenty of vehicles, looking like they had been installed many years ago, working without failure. I don't know what the surface of OP's line look like...I wouldn't try it on a line that had more than a tiny amount of rust.
  9. Mobile Dan

    Misfiring 454, 1990 non-HEI

    As stated in previous instructions, you need to find and disconnect the"Set Timing Connector" as one part of the timing procedure. I will try to find a pic of what it probably looks like...
  10. Mobile Dan

    Misfiring 454, 1990 non-HEI

    Watch your injector spray pattern to see if one of the injectors starts to flake out after warmup. This is usually caused by a bad connection at ECM. Another thing to check would be ohms test at Coolant Temp Sensor for resistance values...I don't remember what the specs are. An "inline spark...
  11. Mobile Dan

    P00B7 Overheat Issue Chevy Sonic 1.8

    Anytime that I have been faced with diagnosing a code P00B7, it has meant that the powertrain control module (PCM) had detected a discrepancy in the correlating signals between the radiator coolant temperature sensor and the engine coolant temperature (ECT) sensor. This may cause the PCM to...
  12. Mobile Dan

    One Sick Truck 2001 GMC Sierra 5.3l 175k

    Have you inspected the pump pick-up screen for clues of tank contamination? "Howling pump"...some other restriction like a fuel pressure regulator? Other have mentioned pressure test... Always putting in $5 gas when you hit "E"? Pump is much happier when totally immersed for cooling. Electric...
  13. Mobile Dan

    Non working horn

    Does that van have the "integrated horn switch/airbag" setup? I have never been able to fix that type of problem. Usually ended up installing a UHB (Universal Horn Button). A bad "horn pad" may not be your only problem.
  14. Mobile Dan

    clock springs

    The clockspring has a ribbon inside that winds (tighter) and unwinds (looser) as you rotate the steering wheel. But if it is not properly installed it will wind so tight that it will prevent the steering wheel from turning "all the way". So you think "Hmm, I just put this steering wheel on here...
  15. Mobile Dan

    Non working horn

    Another simple test, if you have a helper......listen/feel for relay click when horn button is pressed.
  16. Mobile Dan

    Ford diesel Rough idle

    All my years in auto repair and I never asked myself this question..."How do you do a compression test on a diesel if there are no spark plugs to remove?" Maybe glow plugs are removed?
  17. Mobile Dan

    2004 rear wiper wont shut off

    Testing for power at the GRY wire (gray) at the motor...there should be power (12 volts) there with rear wiper switch ON, no power with switch OFF. Test with connector removed from motor. If your 12 volt test light goes off and on in relation to the position of rear wiper switch, the switch is...
  18. Mobile Dan

    A/C Electrical ? 2005 Dodge Neon2.0

    BC said "I jumped the solenoid". By "solenoid" do you mean relay, pressure switch, or something else? If you jumped the low pressure switch to get it to work, you will likely need a new switch. 115 psi should be plenty to allow system operation. If your "solenoid" is a relay, you will need to...
  19. Mobile Dan

    A/C Electrical ? 2005 Dodge Neon2.0

    The A/C clutch relay terminals are connected to the vehicle electrical system through a receptacle in the power distribution center (PDC). The inputs and outputs of the A/C clutch relay include: The common feed terminal (30) receives a battery current input from a fuse in the PDC through a...
  20. Mobile Dan

    Turn on the ignition,all lights come on except the starter does not engage.

    Tip...add a wire to the "trigger" connection (the small wire) for easy diagnosis in the future. Make the wire long enough so that you can touch it to battery positive or similar to allow easy starter activation if starter trigger circuit fails at an inconvenient time.