A cosmetic crack may develop on the plastic liftgate trim panel. Ford has released a service procedure to replace the applique without damage the the liftgate glass.
2003 Ford Explorer Problem Reports
Most Reported 2003 Ford Explorer Problem Reports
A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the heater gets stuck on the hottest setting, the heater blend door may be broken requiring replacement of the heater box to repair the issue.
A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this concern.
The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.
Both V6 and V8 ford engines from various years sometimes experience a very loud low pitched moan or howl that sounds as if it is coming from the air intake area..
The culprit is the Idle Air Control Valve. (I.A.C.).
It is possible to remove and clean the IAC with the proper care but it is not advised to do so...Although it may work for a short time, it will eventually fail again and possibly force you to call a towing service when you le...
Rear diferential making loud whining noises at higher speeds. pinion and ring gear were replaced, happened on my 99 Explorer too
A coolant leak may develop from the radiator. Ford has released and updated radiator and powertrain control module (PCM) software update to address this issue. The software update includes revised cooling fan operating parameters. Failure to complete both service procedures may result in repeated radiator failures.
The radius arm bushing may wear, causing a clunking or popping noise when driving over bumps. To repair, the bushings need to be replaced. Depending on the severity of the wear, the brackets may also need replacement. Driving with worn bushings will shorten tire life and cause tire cupping (uneven tire wear).
lost oil pressure while driving engine was full of oil and no leaks. pulled motor to take a look at the oil pump and drive (and to check bearings after loosing pressure) every thing looked new so went to top side of engine and pulled out oil pump drive which installs were the distributer belongs and drives off the jackshaft (camshaft) to run the oil pump. when i removed the oil pump drive it was as plain as day the gear had worn into the housi...
resistance in connectors under driver and passenger seat (yellow) will trip codes for pretensioner circuit high. make sure pins are clean and tight and reconnect,clear code,retest.
My turn signal switch stopped working when I would turn it on it would blink a few times then it would turn off even if the switch was on.