Horn keeps going off when car us sitting turned off
Could be the horn relay, a problem with the blow pad on the steering wheel, or other wiring problem. I would try the relay first.
SOURCE: where is throttle position sensor located on 2000 honda passport
Normally attached at opposite end of throttle linkage. Remove your air cleaner intake hose at throttle body, and observe throttle plate that opens & closes as you press accelerator, it will be at the end of that, on outside of housing.
SOURCE: 2000 Honda Passport wont start.
I ended up finding a repair shop here in Cleveland. The problem ended up being a short in the electrical system. My fuse kept blowing. That's why it wouldn't restart. If you decide to take your vehicle to a repair shop, have them check out the electrical system. My problem was found under the drivers side fender. Some of the wires were corroded. Good luck!
SOURCE: 2000 Honda Passport Fuel Issue?
I have a 2000 Honda Passport. Once mine stalled, it would not restart. Sounded as if out of gas. I thought fuel pump. Took it to service station. They found a short in the electrical system. The fuse kept popping. They replaced blown fuse in coil and module. They tested misc wiring in main harness. They found and repaired bad wires in main harness for module and coils in left front inner fender. My check engine light was on for several months. Since I got it back from repair shop, it has finally gone off! I hope this helps! Good luck!
SOURCE: Vacuum Leak on a 2000 Honda passport
Replace upper intake gaskets. They are made of metal and plastic. A common problem. Do not remove the very top plenum cover gasket.
SOURCE: changed out dead battery and horn wont stop
Hello.
Changing out the old battery, you may somehow shorted something out in the car. You can check this by seeing if you have any power going to the lights on the car and what ever else that uses the power when you turn on the key. Newer cars like yours usually cant short out, but if the lights and other stuff dont work when your check them, disconnect the battery and look for the fuse panel. Check ALL your fuses and make sure none of them have been blown. You can check that by seeing if the filament in them looks to be burnt or broken as if it popped.
You can also check and make sure that the negative battery terminal is on tight enough. Sometimes a bad ground can mess everything up. As your doing this, before your reconnect your battery, go under the hood of your car and disconnect the horn. This will allow you to work without the horn blaring. To disconnect the horn, its just a wire with an end that simply slides over a metal tab, just give it a pull and it should come right off. You may have two horns so check both sides of the radiator. Hope this helps!
-Steve
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