It seems that all the utilities stay on when car is off, not just the blower fan, but the lights also.
Only the HL and parking work , key off.
find what lamps glow, key off.??
there are lots of interiour lamps.
dome lamps
dash park lamps
dash warning lamps
map lamps
foot lamps. lots more,. name some.
with keys in pocket, and HL and park switch off.
best is to do this in the dark.
and thus the name Dark current. (or phantom drains.)
SOURCE: Intermittent dying of 3.1L engine, refuses to start and stay run
take it to a garage and put it on the obdII reader.Save the guesswork.Had 1 just like that and the the code reader diagnosed 7 different things.But car should be running.I fixed mine by replacing almost all the sensors and the computer
SOURCE: Jeep running rough; black smoke from tailpipe; dying occasionally
Have you taken a spark plug out yet? You may have fowled them out. if they are not clean and have a whitish tone to them, then they need to be replaced.
SOURCE: electric fans runs after car is shut off, drains battery
Having the fan run on for a bit after the engine has stopped is not abnormal in itself, but 20 minutes sounds excessive.
If the fan does eventually shut off, I'd consider changing the thermoswitch (this is a sensor screwed into the radiator somewhere near the bottom, with a pair of wires connected to it - to change it, you'll need to drain the cooling system).
If the fan stays on continuously until the battery is completely flat, see what happens when you unplug the wires from the thermoswitch. If this stops the fan, you need to replace the thermoswitch. If it doesn't, then you need to examine the wiring associated with the switch and the fan, looking for damaged insulation.
A.
SOURCE: 1993 jeep grand cherokee limited no running lights/tail lights.
Id look at the headlight switch and do some voltage tests to see whats coming out of there. Pay close attention to any wires which look like someone was in there already.People can mess stuff up faster and better than the vehicle can by itself!
SOURCE: 1999 Jeep Grand Cherokee 4.0L 6cyl: Radiator fan
there is a solid state fan relay located under the passenger side headlight assembly. There are two ways to get at it. Either you can tear apart the entire front of the vehicle or you can remove the passenger side headlamp assembly and carefully drill a hole about in the middle of the opening and down towards the ground. Look in the hole you drilled you should be able to see the relay. Continue drilling/cutting until you have a hole just large enough to get the old relay out and a new one in. The hole will be covered by the headlamp and has become the preferred method of replacing since they are so common and removing the entire front assembly is so time consuming.
http://img.photobucket.com/albums/v493/twister55/jeep/DSC02093.jpg
I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa
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