Posts by Slimer

    '89 YJ is not fuel injected (I think) and I don't believe that was a good motor (Renix motor). Find out more about the motor and what transmission is behind it.


    Idle issue is probably just be a leaking vacuum hose. Since it happens when as it warms up I would look at the vacuum actuated temp control sensor which is probably screwed into the side of the block on the driver side.


    You might be able to determine if the gears have been done by driving it; if it seems sluggish from a stop or shifts at odd speeds then it probably hasn't been re-geared.

    There are a few guys on here that can do it. Aastape, Shadyluke, and I believe another one who I can't think of at the moment.


    If you want to go to a regular body shop, I recommend Accurate Collision. Friend of mine is part owner. Small shop that does great work. Most of their work is insurance related but they are both hot rodders and their way around custom work.

    Inspect the soundness of the entire floor pan. If the rest looks good, I'd probably cut the area out back to good metal and patch it with a piece of sheet metal. Then coat everything with a good rust proofer.

    Welcome to our little corner of the internet world! There are regular trips to Rausch Creek and the Anthrocite place I believe. I'm sure you will find something you're looking for.

    You can try tightening up the 3 bolts on the mirror body but if it's loose then you the inside probably rusted. I'd probably just get new ones. I don't think they are too expensive.

    I'm going to say NO, you don't need a new PCM. Idle issues, and issues of stalling while coming down from higher RPMs (coming to a stop light or sign) can be caused by other things.

    • the IAC (idle air control) sensor could be gunked up or need replaced. This bolts onto the side of your throttle body. Easy to removed, clean up, and install.
    • While you're at it, pull the throttle body and give it a good cleaning too
    • How about your vacuum lines and their connections? The Fuel pressure relief valve vacuum line runs off manifold vacuum.
    • Another possibility "might" be the temperature sensor that tells the computer how to set the fuel mixture (works like a choke sort of)

    So don't give up hope yet. I bet it's something simple.


    https://www.youtube.com/watch?v=_2VDYu5144k
    https://www.youtube.com/watch?v=fpYSfvAxSkk


    I personally like the 2nd video better because the girl explains things really well and you have to give her props for doing it in sub-freezing weather.

    Saw this on a FB group. I like it. Painted this would be pretty sweet. With so many people have spare parts / parts vehicles around, I'm surprised no one has done this yet.


    Custom Jeep Pickup

    Does that have an IAC sensor (Idle Air Control) on the throttle body?


    Not sure how the newer EFI systems work. But one thing I found when mine would stumble at idle (OBDI system) was a fuel leak at the pressure relief valve on the fuel rail (not sure what the official name is). It's vacuum actuated and returns excess fuel back to the tank. While driving the engine is pulling less vacuum so the relief valve stays closed (engine needs all the fuel). When you come to a stop and return to idle the engine pulls more vacuum and opens that valve to return the excess fuel since the engine doesn't need it.