20 Most Recent 2004 Ford F150 Questions & Answers


Check the ETC control it looks like a water temp sw and is around the upper radiator inlet to the thermostat. It lets the computer know what the outside temp is and either leans the fuel out or enriches it. As to the squeal you may have a bad idler or fan belt, Check that area for your squeal and be sure the fan belt is tight.

2004 Ford F150 | Answered on May 09, 2017


Check all braces under your car. Not just visually, put hands on each and every brace. Sounds like one might be loose or broken. Hope it's as easy a fix as mine was.

2004 Ford F150 | Answered on May 03, 2017


I am looking at a wiring diagram for the power window circuits for that vehicle , it shows no relays involved at all . Here is web site for free wiring diagrams . http://www.bbbind.com/free_tsb.html Enter your vehicle info. Year , make , model an engine size . Under system click on body & accessories , then under subsystem click power windows . Click the search button an three links will pop up , click on them one at a time .

( just run power to the switches and that it might work that way but it didnt so then i ) Where did you get the power supply from ? Hot at all times , key on etc.... An did you supply a ground circuit ?

2004 Ford F150 | Answered on Apr 18, 2017


code p 0021 refers to camshaft position sensor (CMP), intake /left /front , bank 2--timing over advanced /system performance ====causes --valve timing---engine mechanical fault -- CMP actuator
change the can shaft actuator , not the position sensor
code p 0175 refers to system too rich---bank 2===causes --intake blocked ---EVAP canister purge valve ---fuel pressure ---EGR system---injector/s HO2S ( heated oxygen sensor in the exhaust manifold before the cat converter bank 2
code p 0345 refers to CMP sensor A bank 2--circuit malfunction===causes wiring ---CMP sensor ECM
check the wiring for breaks
code p 0325 refers to knock sensor ( KS) 1 bank 1---circuit malfunction==== causes wiring---poor connection to KS---KS
code p 0171 refers to system too lean bank 1===causes --intake /exhaust system leak---AIR system---MAF/VAF sensor ---fuel pressure /pump---injector/s ---HO2S in the bank 1 exhaust manifold before the cat converter
find an accredited service center with experience on the vehicle and have it fixed

2004 Ford F150 | Answered on Apr 18, 2017


There is not break in time. It either works or it doesn't. Usually it is with the vehicle for life, like Automatic Transmission Fluid. It doesn't need to be changed.
I suspect you have a different issue giving you that result.
I would suggest you take it into an Authorised Agent and get a run down on the problem and a quote.

2004 Ford F150 | Answered on Mar 03, 2017


Is the battery failing,if so it will, as you said
mess with the GEM Module & it's relays &
give you just what your getting.
You may have a bad door switch as well a battery

2004 Ford F150 | Answered on Jan 18, 2017


Are you the original owner, has any one had the steering wheel off, do you have a stick or automatic? Are your brake light saying on after you release the brake? The brake switch could be touchy. The steering will has a end of line resistor, if it does not see the 2.2 k resistor then it shuts down, you could hook an ohm meter up and measure all the resistance while truning the steering wheel, just be careful when playing around that area you don't set off your air bag.

2004 Ford F150 | Answered on Jan 11, 2017


somehow I was the annoynmess person with the question about the door ajar and a seatbelt alarm that we disabled, and odometer quitting the radio stayed on well it was just a plug and the odometer speedometer all that works now, but the radio still stay on with a key out of ignition, and now the AC don't cool

2004 Ford F150 | Answered on Jan 01, 2017


Reprogram your fob . get in truck lock doors by door switch put key in turn to on position but not start 8times you should hear door locks cycle you are now reprogrammed this should take care of it if not reset computer .remove positive terminal from battery touch to ground but not negative post reconnect you are reset

2004 Ford F150 | Answered on Nov 15, 2016


could be electric window motor on its way out.

2004 Ford F150 | Answered on Nov 01, 2016

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