2008 Ford F150 4x4 Wiring Diagram

Wiring problems

Top problems

Stereo Wiring

Ford F-150 2001 XL Sport/4.2/5 speed 19782 miles

Need identification of wire colors for install of aftermarket stereo. [Dual] Blue Tooth rec.

Transmission or wiring problem ???

Ford F-150 2005 Pick UP 154000 miles

Drive Vehicle will shift from 1st to second and to 3rd then 4th but will donshift to 3rd and over drive light blinks and engine goes into failsafe mode and showes Transmission Malfunction yet transmission has been rebuilt ???

Wiring diagram

Ford F-150 1986 Ford 150000 miles

Need to know what wire goes from relay to starter.

Cobb from United States 6 years ago

Wires going to solonoid

Ford F-150 1997 F150 5.4 liter 2 wd 324685 miles

My brother owns this truck but I'm trying to help him fix it.He removed the startor due to it wouldn't start click or anything.He had battery tested and it's good 650 cold cranking amps.He removes the old startor and didn't pay attention to where the wires was connected to the solenoids so when he put on new startor not sure which wires go where.FYI to remove and reinstall a startor on this truck is a pain even with front Tire off and inner fender well removed.Any idea which wire goes where on solonoid?

Wiper wiring or switch?

Ford F-150 1998 Ford F150xl 2500000 miles

Wiper moter went out, got new motor installed it burned out right away, checked wiring and found that with key off on on I had power of 5.38 to white wire and 5.38 to greenish wire. Black + White wire has 12v when key is on and ground is working ok along with park wire. Now this isn't right, you should only be gettin power to high speed wire or low speed wire when wiper switch is engaged so is it a wiring issue or has the switch gone bad?????

shag from United States 2 years ago

Wiring problem

Ford F-150 1978 351 58000 miles

Truck starts when it's cold when it warms up it won't fire unless I hit key switch with something. Replaced key switch same thing

Hot wire to rv

Ford F-150 2015 5.0 1500 miles

No power to 7-pin plug labled battery+

tjss from United States 6 years ago

Truck will not start Solved

Ford F-150 1991 4x4 5.0 187000 miles

I was driving down the road and the truck started hesitating and running rough I tryed giving it more gas and it just kept falling on its face I barely made it back to my house only going like 7 miles an hour and I can try to start it now but have to hold the gas to the floor and it will barely idle or stay running very rough I have check fuel pressure I have checked my timing I am getting good spark on all my wires I'm lost on what els it could be I have replaced plugs fuel filter plz help

I replace old fuel pump with a new one but truck won't start I check t

Ford F-150 2001 F150 5.4 L super duty cab 4x4 24396 miles

Truck won't start fuel pump relay and fuses are ok and also checked for fuel pressure didn't have any pressure out of shrader valve and i also checked to hear if the pump was turning on at the fiiller but I didn't hear it come on also have the theft like blinking could there be short in the wiring to cause the pump not to turn on or is the theft light causing these problems need some advice or answers.

No turn or brake lights in the back

Ford F-150 2012 5.0l 4x4 170448 miles

I lost brake and turn signal lights in the back. I have running lights and the brake light on the back of the cab works. Fuses good. Can't find any apparent breaks or rubs in the wiring. I'm stumped...

Mutt from United States 3 years ago

Stalls while driving

Ford F-150 1994 149200 miles

My vehicle jerks and stalls while driving, usually when I speed it up. I've already chan the gas filter, the catalytic converter, the gas regulator, spark plugs, wiring and coils. Even though the jerking problem is not as worse as it used to be, the car still stalls. Can anyone help me please?

june from United States 7 years ago

Failing to start

Ford F-150 1999 4.2 156000 miles

Truck died. Checked battery cables positive cable was hot. Replaced starter, wires from battery to starter and starter relay. Truck still fails to start

No power to fuel pump no power in fuses 11,12 in cab

Ford F-150 1997 F150 4.6ltr. Automatic 355000 miles

Check to fuel pump it's good change the crankshaft sensor I've checked the relays they are fine check inertia switch switch and reset it could the PCM wiring harness have issues where it clips into the computer itself

No power to fuel pump

Ford F-150 1991 XLT Lariat 125000 miles

I have the 12plus volts to the fuel pump relay and no power at the fuel pump. I've wired it from the relay. And i can hear the fuel pump running but it still wont start.

Ricky from United States 3 years ago

Fully charged battery drains in my driveway

Ford F-150 2004 XLT Triton 130000 miles

Something is draining my battery. I recently found my fuel driver module has wide crack from years of weather and has likely got wet inside. I removed it. Now even when I turn off my key I can hear my fuel pump running. (It sounds like it's coming between my box & cab). When I found this I disconnected my battery. Could the water inside my module have fried (fused) my relay closed? Causing my battery to drain...is my relay hard wired as I've read online...or can I just change it out and install my new driver module...what order should I do this. Thanks for any help...Jimmy

Fuel gauges not working

Ford F-150 2008 Truck 250000 miles

Filled the truck up yesterday drove over 100km and the gas gauge has not moved. The fuse is fine but can't seem to disconnect the connection under the drive side on the frame. Just need to know how to disconnect the wiring without wrecking it

Fuel problem

Ford F-150 1989 F150 160000 miles

Wires to front fuel pump low voltage making truck fun out of gas

Papaw from United States 4 years ago

Accessories stay on without key in. Drains battery overnight

Ford F-150 1999 flareside/4.6l V-8 175000 miles

When I take out the key after shutting engine off there is still power to some Accessories (radio, windows + others) and the warning gong keeps sounding as if the key is still in the ignition when I open the door. This causes the Battery to drain overnight and not start in morning. I tried pulling all the relays inside and in engine compartment but it still gets power to the assessories. I changed the starting switch on the column also no help. I looked for any frayed wiring, loose connections, wet areas, shorts etc. also NG. If batt is disconnected then reconnected the problem remains. The only thing that stops it is when I pull Fuse #103 "Junction Block Battery Feed" in the engine panel (red 50amp square cartridge). Can really use some help on this one!

Power to coil but no spark

Ford F-150 1997 4.6l xlt 220000 miles

I have a 97 f150 xlt I recently replaced the engine for similar one I have power going to the coil but nothing coming out. I have replaced coils but is not the problem. Please help. I am going to cut wires off the electric starter hoping that will help. Engine turns over

Will from Canada 5 years ago

No power to A/C clutch relay

Ford F-150 2012 3.5L Ecoboost 4 door shortbed 62000 miles

I parked my truck A/C was working fine. Next morning started it up no A/C. After I did some troubleshooting the determination is fuse 30 (A/C clutch power10 A) in the power distribution box is good. I dig up some wiring diagrams and start through it. The load side of fuse 30 should have a internal (in the power distribution box) jumper to pin 3 (switch leg) on relay # 23 (fan clutch relay). I start it up, turn A/C on, I pull relay 23, check pin 3 nothing there. I go ahead and run thru the rest of the circuits. Relay 23 coil pin 1 is hot, I check pin 1 to pin 2 I show power across pin 1 and pin… Read complete

Hard to start in hot weather and after engine is hot

Ford F-150 1996 6 cyl; manual 151000 miles

When the weather is hot and the engine is hot it is hard to get the engine started again. The engine seem to hit on 2 cylinders and gradually will pick up to run on all cylininders. There is a heavy smell of un -ignighted fuel. Mechanics say they have not seen this problem before??

New sparkplugs, new wires, new rotor cap, new crankcase module, new itnition module. Problem only occurs when weather is hot.

Dick from United States 6 years ago

Misfiring. Rough idle no acceleration or power etv.

Ford F-150 1999 4.6L 187069 miles

I have changed the coil-packs, wires, plugs, egr value, & sensor. I have cleaned the injectors on #1 & #2 changed them around. After doing all this I'm not getting any fire in #2 and the above symptoms
I don't know what else to do.

No power at all

Ford F-150 2002 4.6l v8 triton 200000 miles

I replaced the alternator and tried to start it from the solenoid and everything died I found some blown out fuses I replaced them I've checked for all loose wires there is none batteries brand new there is power coming through the car just not to the front in the inside no lights no beeping no nothing

Aftermarket stereo install 2016 Ford F-150

Ford F-150 2016 Xl/rwd// 85633 miles

I had someone attempt to install a 10.1 Android compatible radio
They ran a complete set of new wiring for the new speakers that were installed (,JBL-GTO 609C) along with wiring up an JBL ax4550 amp and a kicker subwoofer. After he did this I lost my instrument panel and power to my turn signal and hi beams. After checking for my self I noticed he cut the wiring harness to the stereo and also to the one of the control modules that connects the USB and rearview camera. So now anlI need the wiring diagram for the TCI module and if anybody knows what wires on stereo harness are the vss, backup camera and reverse trigger are thank you

Firing order

Ford F-150 2001 100000 miles

I think I cross up my wires when I did a tune up,need a diagram of firing order for 2001 manual trans f150 xl 4.2 v6

Jray from United States 6 months ago

Truck dies out

Ford F-150 2000 Excab 275000 miles

Truck cranks up easy give it gas it stalls out and just dies out unplugged the wiring and going to the transmission and it runs fine

Have to floor truck to get going.

Ford F-150 1994 Standard Cab F-150 200000 miles

I have a 1994 of 150 and I have replaced the spark plugs wires throttle positioning sensor clean the throttle body remove both cats and put a piece a straight pipe in their place and also replaced the Ignition coil and clean the mass air flow sensor and still the truck doesn't react to me pressing the throttle until I have it to the floor and just recently I started backfiring.

Chad from United States a year ago

Wont start.

Ford F-150 2004 stx 180000 miles

No power to anything inside of truck. Nothing changes when key turned. Geting a 4% feed back in wireing. Battery fully charged. Clicking noise coming from hazard signal box under steering column. I have headlights. Power at the starter. All fuses are a1. Changed out the whole fuse box. Checked all grounds good. Im stumped here. Can anyone help.

Shuddering and pulling to the right.

Ford F-150 1981 Ford F150 ranger V8 302 100000 miles

I recently changed the oil, filter, valve cover gaskets, spark plugs, wires and fuel filter. I filled it with gas and it started to shudder and pull to the right, hard. There is no visible signs of bushings or control arms damaged. I am leaking fluid
Under it, running on the transmission lines, what should I be looking for next? I'm going to change the transmission fluid, filter and gasket, what else should I look for?

Battery Keeps Draining

Ford F-150 2002 F150 Lariat FX4 4WD5.4 Triton V8 115000 miles

I have replaced fuse boxes fusses relays Wire harness Alternator /Battery Power steering pump and resovoir,AC Pump, Serpentine Belt Solenoid... And I'm ready to throw in the towel... please Help

Ooses acceleratio

Ford F-150 2000 4.2 f 150 170000 miles

Runs smooth in park. Looses power going down the road, starts popping, will not accelerate, stays on but will not accelerate. Changed coils, plugs, wires ,cam position,egr, vacuum linesMAF.

Javc from United States a year ago

Power windows and seats stopped functioning

Ford F-150 2014 f150 crew cab 4x4 5.0 L 129000 miles

Power window, seat module circuit is not working. Was told 2 into 1 splice was likely corroded, should be orange/ w green stripe. Wondering what the correct color the wire for this function is?

Window won't let up

Ford F-150 2007 extended cab xlt 12200 miles

Window off track due to wiring tangled up on wheel pulley system. I untangled both wires and now how do I configure and hook the 2 wires wire back on THE 1 WHEEL?

No crank no start

Ford F-150 1987 302 154000 miles

I didnot disconnect the neg side of my battery before i lowered my column and smoked my wires with fuseable links on my started solenoid. I lowered the column because i needed to replace my ignition switch which had come apart... the truck had been having fuel pump issues so i replaced the high pressure elec fuel pump. It ran good. When the ignition broke i wire tied itfor a short time unril it came apart. I had started my truck. It idled for about 10 seconds and stalled. I tried to start it againbut my fuel pump wasnt kickng on. I inspected everything visually and everything was good that i c… Read complete

Radio /windshields wipers

Ford F-150 1999 F150 237000 miles

Speakers are buzzing and popping even if the vehicle is off no keys in the ignition. And the windshield wipers just started going to the Mist cycle without the InTouch twice yesterday. I know it's a short of some kind but I need like an easier way without chasing wires. Thanks

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