My Disco II keeps blowing the fuse F2 under the hood. I noticed it since the check engine light was on and the code was saying voltage too weak at the MAF. I replaced it and it blew again after driving a little way. What else shares this fuse does anyone know? I am wonder if maybe I have a wire that is broken or pinched under something that might be grounding. I suppose it could be a bad MAF too.
Fuse F2 under the hood
- Thread starter jaacina
- Start date
ptschram
Well-known member
ptschram
Well-known member
ETM says htat fuse is for sensors... I'd look to the oxygen sensors for your short circuit. Unplug them and see if it blows fuses.
As fuses will eventually become expensive for you, it might be advisable to use your trusty ohmmeter instead of fuses
PT
As fuses will eventually become expensive for you, it might be advisable to use your trusty ohmmeter instead of fuses
PT
I'll check it out with my Volt meter. Did not have a chance last night. So unplug them and drive it around? I suppose it does not work properly anyway with the blown fuse.
ptschram
Well-known member
jaacina said:
Yes, but you'd better be a very patient man with good eyes or better reading glasses.
We'll see how awake I am when I get home from class tonight. Might end up waiting until Wednesday to check in to this since I am away from home from 6:00 AM to 10:00 PM Monday and Tuesday.
One other question, I was looking at the wiring diagram. I know the location of all the items that are on the fuse, but I am not sure of what or where the Pump-Leak Detection is.
ptschram
Well-known member
ptschram
Well-known member
Underneath the truck somewhere judging by the pictures. Some of the FSMs are better than others.
Thanks. I'll have to take a peak. Not sure what it even looks like. There are a number of things on that fuse. I don't have my repair manual with me. Hopefully I can determine it before I hit this.
Well using my trusty meter I was able to locate the short. It was back by the right rear O2 sensor. Fixed the wires, disconnected the battery to clear the codes. I also bought a replacement sensor in case it got damaged in the shorting. Seems to be running great now. No more blowing fuses.
Thanks for the help.
Thanks for the help.
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