Chevy s10 computer replacement




Chevy s10 computer replacement

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    WHEN TO REPLACE YOUR PCM (AND WHEN NOT TO). The onboard computer is the brains of the engine control system, so when the brain isn't functioning.

    Results 1 - 48 of Get the best deal for ACDelco Engine Computers for Chevrolet S10 from The proper way to replace an engine computer and be sure your.

    Chevy s10 computer replacement

    Chevy s10 computer replacement

    Warranty returns on complicated and expensive components like powertrain control modules can be tricky and are a no-win situation for everyone. Accessibility can be a problem on some vehicles because the PCM is often buried under or behind other components in the instrument panel, climate control system or console. Somebody may have crossed up some wires, zapped the PCM with too much voltage or who knows what? So the best advice here is to test drive the vehicle after the computer has been installed.

    Chevy s10 computer replacement

    Chevy s10 computer replacement

    Chevy s10 computer replacement

    Chevy s10 computer replacement

    Chevy s10 computer replacement

    WHEN TO REPLACE YOUR PCM (AND WHEN NOT TO)

    The onboard computer is the brains of the engine control system, so when the brain isn't functioning correctly neither is the engine or anything else that the microprocessor controls - which may include the charging system, transmission, various emission controls and communications with other onboard control modules. Once a diagnosis has been made and I emphasize the word diagnosis , then and only then should the PCM be replaced. All too often, the blame falls on what is least understood.

    Warranty returns on complicated and expensive components like powertrain control modules can be tricky and are a no-win situation for everyone. Over 50 percent of PCMs that are returned under warranty have nothing wrong with them!

    Chevy s10 computer replacement

    The trouble with returns is if the PCM has been on the car, you have no way of knowing if it is still "good" or not. Somebody may have crossed up some wires, zapped the PCM with too much voltage or who knows what? The computer needs to be tested and verified before it can go back on the shelf and be sold to somebody else. You can understand then why many parts stores have a policy of "no returns or refunds on electronic components. So - don't even think about replacing that PCM until you're confident that you've properly diagnosed the problem.

    Determining the cause of death may not always be possible, but it may be essential to prevent the same thing from damaging the replacement PCM in some cases. PCMs typically fail for one of two reasons: As for environmental factors, water is the main thing to avoid. If water gets inside a PCM, it can short circuits and set up irreversible corrosion that ruins electronic connections. Replacement is the only option. Thermal stress and vibration can form microcracks in circuit boards which are repairable.

    Chevy s10 computer replacement

    This often has more to due with the ruggedness of the circuit design than operation factors in the vehicle itself. Because there are so many different PCMs, accurate identification of the PCM and its correct replacement is absolutely essential to prevent unnecessary returns. Many PCMs appear to be exactly the same on the outside same sized box and connectors but may be wired or calibrated differently inside. It must be the correct replacement for the application. So if in doubt, always refer to the OEM number on the PCM and look it up in the suppliers cross reference index to find their replacement part number.

    The calibration chip and PROM contains the programming instructions for the vehicle application. There are too many different possibilities. If the replacement PROM is not properly programmed for the application, it must be reprogrammed after it has been installed.

    Unfortunately, the ability to do this type of reprogramming is not readily available to the aftermarket. One such example is Chrysler transmission modules. They must be reset with the factory DRB scan tool and dealer codes to set the "pinion factor," which controls the operation of the speedometer.

    Chevy s10 computer replacement

    PCMs are not rebuilt in the same way that alternators and water pumps because there are no mechanical parts that wear out. Remanufacturing in this case usually means testing the computer, isolating and repairing any faults that may be found, then retesting the computer to make sure everything works correctly.

    Remanufactured PCMs are typically sold one of two ways: Some PCMs, though, may not be repairable. As we said earlier, most remanufacturers will not even touch a PCM if it came out of a flooded vehicle. Replacing a PCM is essentially a matter of swapping boxes. Accessibility can be a problem on some vehicles because the PCM is often buried under or behind other components in the instrument panel, climate control system or console.

    How to Replace Car Computer



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