Fan runs continuously
- Thread starter Jeep in Ethiopia
- Start date
So, apparently that particular point is not the temp sensor. I've reported what has happened by removing it (no temperature change on the dash gauge and no change in the fan).
Did you see the error codes I've reported?
Yes, of course I've looked up all the codes. The issue is what to do now. I'm completely lost. No idea where to begin. For me, knowing codes is like NASA giving me their code phrases...to which, I say, "ok, now what?"
Help?
Try listing the codes with their descriptions and that will put a list out that we can start trying to make some sense of. It is a struggle on this end because your mechanics are not helping at all. They could have at least given you a list of codes so we could start there.Yes, of course I've looked up all the codes. The issue is what to do now. I'm completely lost. No idea where to begin. For me, knowing codes is like NASA giving me their code phrases...to which, I say, "ok, now what?"
Help?
Here's what was spit out. I have no idea where to begin or to determine what's wrong.
| P0627 | Fuel Pump Control Circuit |
| P0481 | Cooling Fan 2 Control Circuit |
| P0480 | Cooling Fan 1 Control Circuit |
| P0443 | EVAP Purge Solenoid Circuit |
P0499 ————————————- I couldn't find anything on this error
| P0622 | Generator Field Control Circuit |
| P0685 | Auto Shutdown Control Circuit |
PO499 is abnormal pressure in the emissions due to an incorrect gas cap, generally.
I'll get with my buddy today and see if he has any thoughts on where to try and start.
Cool, thanks. Again, the only "symptom" I've got is a fan that runs continuously without stopping until I turn off the engine. I've replaced the relays, the circuit fuse next to the fan, and tried finding the temperature sensor (still having difficulty finding it; whoever gave me the picture of where it is on the engine seems to be in disagreement with other people who say that if I disconnect it [which I did], then it shouldn't be the case that both the fan continues and the temperature gauge shows normal engine temperature on the dash. The fact that disconnecting it made no impact on the fan or temperature was, I guess, evidence that it isn't the temperature sensor after all. So, I'm still trying to locate the two temp sensors.)
Did you download the FSM and use it to find out where the sensors are located?
Yes, I downloaded it. I've looked at that document for about 2 hours. I'm too illiterate when it comes to vehicles to narrow down where the heck that info would be. I tried looking at the outline of the manual. I tried custom searching words. I'm good at a lot of things; clearly, I'm not good with vehicle terminology or navigating such a document.
Regardless of how good we are or can be, it will be next to impossible to solve this without the vehicle in front of us. You need someone who is vehicle literate to put eyes on this thing.
You're right. Good luck to me. Almost impossible to find here (at least, for a Jeep). I've seen three other Jeeps, total, in the whole country (1/3 the population of the US).
We sat down and went over this. He brought up the first thing you should do is get a test light and check every fuse. All of those codes are related to a fuse being blown or a high voltage level which is also voltage high or an open circuit.
UPDATE: both relays replaced and no change. Temp sensor replaced and no change.
Now what? :/ Where should I look next?
Now what? :/ Where should I look next?
Antonio Flores
New Member
Hi sr wondering if you had any luck solving that issue with the fan running continuously?
Having the same problem running all the time and check engiune light on with bad performance in the vehicle
Hope you found a solution.
Ctdriver86
TJ Enthusiast
Last seen October 2020… but I’m digging into the same issue as well, with mine.
Antonio Flores
New Member
Antonio Flores
New Member
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