At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
04 navigator is blowing ac fuse 11, ac coil shorted, 3 different coils, can ac compress short the coils
Tested from fuse 11, relays, replaced ac relay, ac diode, multi-function relay, test from ac relay to compress, test said replace ac coils, after 3 coils, 1 was ford, 2 were auto parts store. I've pretty much tested every thing, I even run a wire with inline fuse to compressor and ground to compress, can a ac compressor ruin the coils or is the ford ac coil built different than other brand of coils. I think the compressor or the ac coil is the problem. the coil still worked but blew the inline fuse in about three min.
Re: 04 navigator is blowing ac fuse 11, ac coil shorted,...
How did you hook up the inline fuse to compressor and ground to compress ? Ground what ? Right at the clutch coil ? You have to be hooking it up wrong . The compressor can't cause the clutch coil to short or blow the fuse , even if the compressor were seized up . An before that would have the serpentine belt would burn up , squealing noise. applying B+ voltage in the relay socket ,pin 30 to pin 87 will engage the compressor clutch . If the fuse blows the wiring from the relay to the compressor clutch is shorted to ground . Look for rubbed through wiring harness .
after you replace the fuse try closing the door and put the key in and turn it back and forth locking and unlocking it and see what happens when you use the power lock
ray
un-plug the ecm " computer module " it should be under the hood by the passengers side on top of the fender.
it's a box with three connectors to it.
un-plug them all three for 5 min or so.
and plug them back up.
see if that helps to start it.
i had a 96 and i replaced everything and still will stall or have problems starting it up.
finally i un-plugged the computer and it will run fine for 15 or even a month without any issue, so my conclusion was that the ecm was bad.
I think fuse 11 is transmission control module, powertrain control module, automatic shutdown relay, fuel pump relay.. most likely it could be an issue with the wirings from the tranny. Check this one out before opening the conduit
You have a bad fuel sending unit bracket, on top of your fuel tank. This is a VERY common issue. Frop the tank down, you will see the problem. Replace the bracket, and you will be good to go.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Wouldn't think fuse being the problem , fuse's don't go bad and don't blow for no reason . If the fuse was or is blown you would have bigger problems , electrical short . The wire or circuit's that fuse protects are battery positive voltage ,if the wire has been rubbed through an touching any metal on the vehicle this would blow the fuse. Your 4 wheel drive is controlled by a four wheel drive control module (computer) , Has four different fuse's that supply Battery voltage to it. The 4X4 system is able to set code's in the 4X4 control module , your best bet ,take it to a qualified repair shop. These 4X4 systems can set a bunch of different code's
P1804
4WD High Indicator Circuit Failure
GEM
GO to Pinpoint Test C .
P1806
4WD High Indicator Short to Battery
GEM
GO to Pinpoint Test C .
P1808
4WD Low Indicator Circuit Failure
GEM
GO to Pinpoint Test C .
P1810
4WD Low Indicator Short Circuit to Battery
GEM
GO to Pinpoint Test C .
P1812
4WD Mode Select Circuit Failure
GEM
GO to Symptom Chart.
P1815
4WD Mode Select Short Circuit to Ground
GEM
GO to Symptom Chart.
P1820
Transfer Case CW Shift Relay Coil Circuit Open or Short to Ground
GEM
GO to Pinpoint Test B .
P1822
Transfer Case CW Shift Relay Coil Short to Battery
GEM
GO to Pinpoint Test B .
P1824
4WD Electric Clutch Relay Circuit Failure
GEM
GO to Pinpoint Test A .
P1826
4WD Electric Clutch Relay Short to Battery
GEM
GO to Pinpoint Test A .
P1828
Transfer Case CCW Shift Relay Circuit Failure
GEM
GO to Pinpoint Test B .
P1830
Transfer Case CCW Shift Relay Coil Short to Battery
GEM
GO to Pinpoint Test B .
P1836
Transfer Case Front Shaft Speed Sensor Circuit Failure
GEM
GO to Symptom Chart.
P1837
Transfer Case Rear Shaft Speed Sensor Circuit Failure
GEM
GO to Symptom Chart.
P1838
Transfer Case Shift Motor Circuit Failure
GEM
GO to Pinpoint Test B .
P1846
Transfer Case CONTACT PLATE "A" Circuit Failure
GEM
GO to Pinpoint Test B .
P1850
Transfer Case CONTACT PLATE "B" Circuit Failure
GEM
GO to Pinpoint Test B .
P1854
Transfer Case CONTACT PLATE "C" Circuit Failure (GEM Only)
GEM
GO to Pinpoint Test B .
P1858
Transfer Case CONTACT PLATE "D" Circuit Failure (GEM Only)
GEM
GO to Pinpoint Test B .
P1866
Transfer Case Maintenance Required (GEM Only) (4-wheel drive operation can be restored by clearing the DTC and cycling the ignition.)
GEM
GO to Pinpoint Test B .
P1867
Transfer Case Contact Plate General Circuit Failure (GEM Only)
GEM
GO to Pinpoint Test B .
P1874
Automatic Hall Effect Sensor Power Circuit Failure
GEM
GO to Symptom Chart.
P1875
Automatic Hall Effect Sensor Power Circuit Short to Battery (GEM Only)
GEM
GO to Symptom Chart.
P1891
Transfer Case Contact Plate Ground Return Open Circuit
GEM
GO to Pinpoint Test B .
What is engine liter size? Does it blow with key on or do you have to start it? Most of the circuits for that fuse goes to ignition coils, coil on plug ignition. Could be a faulty coil or shorted wiring circuit, somewhere?
There was one other circuit, seems to go to control side of ac compressor relay, just for testing, you could unplug the relay, I doubt we'll get that lucky?
With key off, unplug ignition coil do an ohms test on coil primary terminals, I'm not talking about the wiring harness connector, the coil, itself. Look for the readings to be close to the same, if one is way different than the others, that coil could be faulty? Any applicable trouble codes?
13
A/C CLUTCH Fuse
10A
A/C COMP Relay - try replacing the A/C compressor clutch relay # 38 in under hood fuse / relay box . ! Could be shorting out after hot . I don't won't to get to technical on you, doing voltage drop testing on the circuit . If not relay the compressor clutch coil could be going bad when heating up . There are videos on you tube , testing A/C compressor clutch relay .
p0685 refers to ECM power relay control---circuit open===causes--wiring--ECM relay
Replace this relay. Check the wiring from the coil to the distributor as there is a dead short after the coil somewhere for the fuse to blow and the coil to overheat.. You may have a electronic module failure either in the distributor or the ECM
You have a shorted engine wiring harness, where that short is will require hours of inspection for anyone but a professional. I would have the dealer repair this.
The AC clutch contains a field coil that creates a magnet pull on the drive plate, that field coil is shorted, replace it. You need a special puller to remove the AC pulley to access the coil.
×