Top 20 1999 Ford Expedition Questions & Answers


The emission hose routing diagram should be on a 3" x 5" sticker either on the underside of the hood or on the top of the radiator support or on the air cleaner housing cover. It's kind of a symbolic diagram but will indicate what goes where. There are very few vacuum lines on one of these so it should be pretty straight forward.

1999 Ford... | 31 views | 0 helpful votes


horn relay (located in the battery junction box [BJB]).thanks

1999 Ford... | 35 views | 0 helpful votes


They are colour coded and have the amperage on top. PDF manuals are available at the Ford website

https://www.google.com/search?q=99+ford+expedition+fuse+box+diagram

1999 Ford... | 56 views | 0 helpful votes


Ford calls this the "GEM" It is to the left of the brake pedal arm under the dash. It is just a matter of a few fastners to remove.

1999 Ford... | 161 views | 0 helpful votes


Check the door locks take off the trim panel on the doors and go to the latch at the back of each door and check that the wire is connected and that it's clean this is a ground when the door is opened the interior lights come when you close the door they shut off if the wire attached to the locking latch in each door is broken or corroded or unplugged they can fall off the lights inside will stay on it only takes 1 bad wire for this to happen also check to see if you door pin switches when you open the door by the hinges on the frame about halfway up you'll see a pin or button like switch on all doors again one bad one is all you need and the running board lights are probably on the same circuit oh yeah there's a tailgate latch to and or a pin switch so take off all panels and look for the bad wire and in the frames where the doors close in the front and back doors those pins are in the front part of the body where the door post are the rear tailgate it's in the frame on the side near the top to stop draining the battery till you find it take out the interior light fuse for over night parking

1999 Ford... | 26 views | 0 helpful votes


You may be hearing 30A circuit breaker 601 in the battery junction box. There could be a short in the switch or wiring.

1999 Ford... | 413 views | 0 helpful votes


its the key 1 for settings 1st driver key 2 settings for 2nd that's the seats and mirrors

1999 Ford... | 44 views | 0 helpful votes


Not enough transmission fluid in the tranny, Pressure regulator malfunction, reverse solenoid sticking or the transmission control module is bad.

1999 Ford... | 31 views | 0 helpful votes


I suggest you try one of those instant download manuals. My brother ( a mechanic) buys it when he can't fix some technical issue He buys from www.reliable-store.com . A lot of mechanics actually
do this. Website is very good for this. Must try it !!

1999 Ford... | 64 views | 0 helpful votes


The IAC wouldn't cause a noise like you describe, and as for the spark plugs, it is possible but only if the plug broke off, or blew out of the engine. You say engine is running OK but a V8 can do that on 7 cylinders. Also you may be describing the beginning of a piston rod knock. You will need to check further. Good Luck Friend

1999 Ford... | 70 views | 0 helpful votes


Sounds as though the signal relay (cube sized) switch has failed, this is normally located under the steering console once you have removed the cover panel.. I do hope this helps....

1999 Ford... | 46 views | 0 helpful votes


You may want to remove the cover over the wiper nut and tighten it down. Make sure you don't exceed the torque settings. The nuts have a tendency to back off causing the wipers (or one wiper) to slip.

1999 Ford... | 161 views | 0 helpful votes


intermittent wiper relay problem.
see here....
https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-intermittent-wiper-relay

1999 Ford... | 66 views | 1 helpful votes


Try to check that in youtube. there are tutorials

1999 Ford... | 56 views | 0 helpful votes


The 02 sensors will make it run rich, not misbehave. Black smoke? means too much fuel.

1999 Ford... | 156 views | 0 helpful votes


Call your local library and ask if they have online access to a shop manual. If so, go there and print out all the door trim fastener diagrams. Then print out the window regulator removal instructions and diagrams. If they don't have it, go to alldatadiy.com

1999 Ford... | 118 views | 0 helpful votes

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