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  1. John Scoggins

    Strange oil pressure gauge issue

    Been chasing the oil pressure gauge dropping to 0 every so often issue. I know it is an on off gauge, 6 psi and above gauge in center. I have replaced the sending unit (mopar), cleaned all connections, etc. Each time the problem goes away for a while. Since I have to change the RMS I decided...
  2. John Scoggins

    Does anyone know the size of the purge valve line to tank connector?

    Does anybody know the size of the connector that connects the steel line to the nylon line going from the purge valve to the fuel tank (just inside of the drivers side rear tire)? Mine is split and causing an EVAP code, I have attached a picture I found showing the connector in question circled...
  3. John Scoggins

    Charcole canister hose clip part number

    Does anybody know the part number for the plastic retaining clip for this hose connection? It is from the charcoal canister
  4. John Scoggins

    (12)P16 Code, Anybody Seen This?

    Got a strange code (12)P16, no check engine light. Has anybody seen this? Wondering if it is related to P0016 since the OPDA has statyes ticking on and off (will change it this weekend).
  5. John Scoggins

    Tips on Replacing the Spark Plug Boots 2004 4.0 TJ?

    Any good tips on changing the spark plug boots on a 04' TJ with 4.0. I know the manual says they are part of the coil rail (not changeable by themselves) and the last time I changed the plugs the boots were prey well installed on the rail so I did not mess with them. Now I have a good light...
  6. John Scoggins

    Oil Pressure Gauge Question

    Having the oil pressure gauge problem that seems to be common to our TJ's. The gauge goes to 0 at certain times at idle, then back to "normal" when RPM's are added. I had this issue about a year ago and fixed it (so I thought) by cleaning the two connectors on the back of the Instrument...
  7. John Scoggins

    Bosch Double Platinum Plugs after 20K miles

    Never really liked any plug by Bosch, here is a pic of the 6 "Double Platinum" plugs the PO installed that have ~ 20K miles on them (according to the records that came with the Jeep). They sure did not last very long, the gaps run from .040" to >.085". Went back with Autolite and I bet the...
  8. John Scoggins

    Strange Enhanced OBD II code and beeping

    2004 TJ, 4.0 automatic here. My daughter drives it daily and lately has said that when she is going over 60 mph sometimes the Jeep beeps (like the beep when the lights are left on) and does not stop until below 60mph. I asked if the gauges are showing ok with no check gauges light or check...
  9. John Scoggins

    How to clear/reset b0, b8 and open panel Instrument Cluster Errors

    Can the B0, b8, and Open Panel errors found during an Instrument Cluster test be cleared, or do they clear on their own once the problems are corrected? I ask because I have those errors and I think that I have corrected them, but the codes still come up. Below is a nutshell of what issues I...
  10. John Scoggins

    Strange Oil Pressure Gauge Behavior

    My 04 TJ 4.0 Auto showed 0PSI on the oil pressure gauge at idle, check and the engine is fine, it is electrical. I posted about this in a previous post as far as the details of what I found and how I "fixed" the gauge (cleaned connectors on instrument cluster) but there is one thing left that...
  11. John Scoggins

    Oil Pressure Gauge / Sending Unit / Gauge Cluster Question

    Interesting issue, for me anyway, 2004 TJ, 4.0 auto here. While driving the oil pressure gauge went to 0pis, Check Gauge light comes on. Pulled over and listened to the engine, no noise to indicate that there was 0psi oil pressure. Waited about 15 min with the engine running, then the gauge...
  12. John Scoggins

    Help identifying this roof rack

    I need some help in identifying the brand of roof rack that my 04 TJ came with when I purchased it last year. It looks like it could be a Smittybuilt SB-76713 or Barricade J100172 (older version maybe?). The pipe OD is the same BUT mine only has two crossbars (with no hole for a middle one)...
  13. John Scoggins

    Experience with pitman arm and track bar combinations needed

    Need some experienced help out there. On my 04 TJ it came with a RC 4" lift with a drop pitman arm. The jeep does have some bump steer and I am pretty sure that a stock pitman arm will help with this. I have attached a picture to show the track bar mount as it is not stock either. I was...