heater core

  1. Scholar72

    Swapped heater core and now have issues

    Hey folks! I did it! I swapped out the heater core on my 97 TJ 2.5! Put everything back together and now my gauges don’t work, blinkers blink along with the high beam light on the instrument cluster, That’s when the lights are turned off. The headlights running lights and turn signals all work...
  2. M

    A/C replacement causing RMP surge and pulling

    Had the ac evaporator replaced. It wasn’t done right. There has to be a wiring issue. The fan only works on 1 speed. As soon as the heavy system is turned on it surges the RPMs. I’ve replaced the fan switch a little while back and the fan switch has been spliced in as it had previously melted...
  3. A

    Coolant reservoir constantly draining unusually fast

    Hey all, I just bought my first TJ (4.0) last year at about 114k. Its been an up and down road needing a lot of work here and there but forums have usually been able to help me diagnose issues. The issue I am having right now is involving my coolant levels. My reservoir tank drains...
  4. Latimera

    Read this before replacing your heater core! (heat not blowing hot)

    Hey everyone! So, I recently went through the process of replacing my heater core in my 06 TJ. Although it is a pretty straight forward job, it is time consuming and can be intimidating to the newer Jeeper. The last thing anyone would want is to have to it twice. Unfortunately, that is exactly...
  5. L

    2004 LJ with luke warm heat

    Hello all. I'm at a hair pulling moment. I am suffering from low heat in the 2004 LJ. So far to date and for some other reasons than lack of heat, I have replaced, the heater core twice, the water pump and 195 deg non fail safe thermostat, a radiator, all of the hoses (radiator and heater...
  6. Latimera

    Heat is not blowing hot (a little more complicated than you may think)

    As the title says, the heat in my 2006 Wrangler TJ is not blowing hot. This started to happen after I replaced the heater core. I want to be as thorough as I can with this post so here is a rundown of everything leading up to this moment. My TJ had a leaky heater core, but the heat still blew...
  7. Jakob McElhaney

    No heat on 97 TJ

    The heat in my jeep is not working. I am not really sure why. With me living in Ohio, it is a pretty chilly ride to and from school / work. I have flushed the heater core twice and there is nothing coming out except water. The jeep gets up to temperature (210) so I don't think it is the...
  8. B

    Coolant coming from evap drain after upper coolant hose replacement

    So I've done some research on a heater core replacement and am fully aware of what it entails, but just wanted to get an opinion first before I disassemble the whole dash. My upper coolant hose had a leak, so I replaced it and "burped" the air out of the radiator and everything seemed fine...
  9. ScubaSteve007

    Leaking Coolant inside Jeep

    Hey guys, I'm still a little new to Jeeps, and have only had half of the vehicle be broken. My issue today is coolant leaking from near the shifter, underneath the center dashboard/radio thing. I think it could possibly be the heater core, but I'm new to working on vehicles. Here's a link to...
  10. JeepLS1_27

    97 TJ 2.5L: Is there a difference in heater cores for A/C and no A/C models?

    So I've flushed and replaced all hoses and my radiator, but my heat still isn't where it use to be so i'm planning on replacing the heater core. Anyways, I saw where the OEM on rockauto has A/C heater cores and Non A/C heater cores. The OEM Non-A/C is out of stock and no longer made and the...
  11. B

    Post-heater core replacement, antifreeze smell in the cabin

    Hi, all. After having finally had a local shop replace the heater core on my 2004 TJ Sport (4.0L / 5speed / AC), I've got great heat, and great airflow (all fan settings), but a not-so-faint smell of antifreeze in the cabin. Not losing a drop of coolant, and never seeing anything past normal...
  12. F

    Heat does not work

    Ok here we go. My heat does not work, at all. I have flushed my entire system. I have replaced my thermostat, I have replaced my heater core, and lastly, I have replaced my radiator (separate issue). Can anyone assist in pointing me in the next direction? And the icing on the cake, when I...
  13. Kevin E

    No Heat

    Not that I really need a heater now but mine is Luke warm. Good flow with both hoses hot and blend door is closing what am I missing? Do a reverse flush? 98 TJ Sport.
  14. JFjeld

    How to replace the heater core on a Jeep Wrangler TJ

    — Write-up created in 2007 — So I just bought a used Jeep Wrangler with a 30-day warranty from a small local dealer. Almost immediately after the 30 days, I began to smell antifreeze, had trouble defrosting, and was noticing tiny droplets of an oily substance on my passenger floor. The obvious...