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  1. wmburns

    P0118 code - somebody please tell me what the deal is

    If we assume the above reading is from the ECT signal wire and battery negative the 0.005 volts is a very small difference. IMO this isn't likely to be your problem. However IF you are looking for a better way to know for certain, IMO the smart answer is to use an ODB2 scanner that is capable...
  2. wmburns

    02 GT NEW PUMP LOW PRESSURE?

    If this were my car I would use an ODB2 scanner to look at the fuel pressure PID. What we are looking for is to see IF the PCM is seeing a value from the FRPS. Monitor the FRPS. Watch the FRPS as the key is cycled. Does it change? Does it change during cranking? Also monitor the RPM's...
  3. wmburns

    PATS delete service?

    Here's some information that might allow you to re-program PATS yourself. ForScan ODB2 scanner w ELM327 USB https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/
  4. wmburns

    2001 mustang gt cluster/ interior light issue.

    Recommend also checking the cluster ground. With the cluster removed test the black wires and the black wires with a white stripe for a good ground path. Use a test light that will "load" the circuit. If you find a bad cluster ground then suspect a bad grounding point behind the center...
  5. wmburns

    01 gt soft top

    Just wondering. HOW do you KNOW it has low oil pressure? The light comes on? Does the top end make noise? The oil pressure sending units fail at a fairly high rate. Unless you have actually measured the oil pressure it might be something as simple as a bad sending unit. They are cheap...
  6. wmburns

    Temperature gauge not working

    This is your problem. A 2000 MY V6 uses an ECT. A 2001+ MY V6 uses a cylinder head temperature sensor. The sensor used needs to match what the original PCM is expecting. Which in your case is a CHT. But I can promise you that wiring two different temperature sensors together is not going...
  7. wmburns

    97 gt starts then dies thieft light flashing

    My vote is you have a bad electrical ignition switch. The clue is in your description of the problem. IE it acts differently if the key is not turned all the way to a position. There are multiple contact "gangs" within the switch and not all of them are making good connections. Note the...
  8. wmburns

    Blower resistor

    Does the blower fan run on HIGH? Note the resister needs air flow to stay cool. So IF the blower motor isn't spinning at all then the resister will over heat. What have you done to confirm that the blower motor itself works? What happens when the blower motor is powered directly with 12...
  9. wmburns

    HELP 96 mustang PCM/Pats

    Here's some information about an ODB2 scanner that is capable of re-programming PATS. ForScan ODB2 scanner w ELM327 USB https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/ Also for the 1996 model year there's an end user procedure that can reprogram PATS...
  10. wmburns

    Sigh... Overheating with AC on, bad CCRM?

    Have you looked under "activation"? How about looking through the PID while the motor is running. Some of the PID of interest will have names like "fan speed" or "low speed fan yes/no". As I said in the informational post I don't use the Forscan software. However during the times I have...
  11. wmburns

    No crank no start

    Manual or auto? What have you done to trouble shoot something simple like the neutral safety switch (NSS)?
  12. wmburns

    Electrical problems

    Would you like an educated guess? Bad radiator core support or battery ground. The clue is the turn signal flashing fast. This indicates low voltage from the turn signals. But if looking for one thing that all of your symptoms have in common.....grounds. Here's some information that if...
  13. wmburns

    Sigh... Overheating with AC on, bad CCRM?

    So we should assume that the fan will run on both speeds when powered. But do we KNOW IF the PCM has operational control over the fan? This is where a bi-directional ODB2 scanner is worth it's weight in gold. Knowing the answer to this question will take most of the guess work out of trouble...
  14. wmburns

    Sigh... Overheating with AC on, bad CCRM?

    If this were my car the FIRST thing would be the CONFIRM that the cooling fan actually works on BOTH high and low speed. A non functional cooling fan can make the AC in-op and make the motor over heat. Also. Don't assume that with the AC on the cooling fan is supposed to run on high speed...
  15. wmburns

    97 Cobra Imrc Issues (please Help Thanks)

    The simplest and easiest way is to use an ODB2 scanner to "command" the IMRC to a different position. Then either listen for a change in how the motor is running or visually verify that the IMRC linkage actually moves. Doing it this way quickly answers two questions. Does the IMRC controller...
  16. wmburns

    Slow re-fueling 2000 GT

    Update. Replaced the charcoal canister for the final fix. At this point in time I have had several years of trouble free operation. Bottom line. For slow re-fueling think first of a block in the gas tank vapor lines. First place to look is the CV Vent solenoid as spiders and other insects...
  17. wmburns

    Replaced TPS, four dead cylinders

    IMO it's short sighted to focus your inspection of the wiring harness on just the wiring to/from the TPS. If this were my car I would put a test light between a fuel injector and ground to VERIFY there is constant power to the failing fuel injector, Next I would put the test light across the...
  18. wmburns

    Lights pulsing, need help

    +1 on the advice given to MEASURE AC ripple. Yes I know it seems odd to use a volt-ohm meter (VOM) to measure AC on a car's DC voltage system. +1 on the advice to take your car to your local autoparts store and have them do a quick check of your alternator. Most autoparts stores have a...
  19. wmburns

    ABS Control module replacement

    Sometimes the symptom you are describing could be caused by a blocked/pinched brake line. Fluid can get into the calipers but not out. The "book" on ABS says that when doing brake work that old brake fluid is not supposed to be forced backwards through the ABS module. What this means is open...
  20. wmburns

    07 grand marquis 4.6 into 04gt ?s

    I would like to discourage you from swapping PCM in the strongest terms. This goes even more when the model year of the PCM is different from the original MY. There are differences between the model years making it difficult to predict the problems. IF this is a PCM programming issue to...