bigdumbfun
NAXJA Forum User
- Location
- belfair, WA
I have a '93 XJ with the 4.0L. About two weeks ago I got a check engine light. Cycled the key once and it went away. It is starting to happen more often now. Maybe not coincidently it has been quite abit colder than usual in the NW. About 20 degrees. The guage upon cold start up reads around 12V and stays that way for 30-60 seconds. It then suddenly jumps to aroud 14V. You can hear a slight change in pitch from the engine bay. All is well.
The code check from cycling the key gives me a 12, 41 and then 55. I know 12 means the battery has been diconnected and I know that 55 means no more codes. I don't completly understand the code 41 though. I took it to Autozone and had them check the alternator. It's fine of course. Maybe I need to leave it there overnight and have them check it in the morning when I first start it up. The belt is a few months old and has good tension. the battery is about a year old and was tested also. Stong as an ox.
I have done a search on this and have found others with the same symptoms, but no exiting conclusion as to what the solution was. Why is evrything fine after a minute? I am not really clear on the regulator part (internal or external). What else could it be? Is this going to get ugly or do I just need to swap out the alternator?
The code check from cycling the key gives me a 12, 41 and then 55. I know 12 means the battery has been diconnected and I know that 55 means no more codes. I don't completly understand the code 41 though. I took it to Autozone and had them check the alternator. It's fine of course. Maybe I need to leave it there overnight and have them check it in the morning when I first start it up. The belt is a few months old and has good tension. the battery is about a year old and was tested also. Stong as an ox.
I have done a search on this and have found others with the same symptoms, but no exiting conclusion as to what the solution was. Why is evrything fine after a minute? I am not really clear on the regulator part (internal or external). What else could it be? Is this going to get ugly or do I just need to swap out the alternator?