1998 Ford Ranger SuperCab - Answered Questions & Fixed issues

Behind the right front inner fender near the frame.

401 might have been caused by 125. The exhaust gas recirc is likely to be inefficient or not working until the engine is at working temperature. PO125 is the engine not reaching operating temperature. Clearly the fault(s) are intermittent or borderline. The engine might not be warming up correctly or there might be a sensor or wiring fault. Make a start by checking the thermostat...

Have your fuel pump pressure and your fuel filter checked by a mechanic. Sounds like fuel starvation!

check that the shaft is too long and the spline section is bottoming out

Check to make sure the safety switches are engaging. One on the clutch, one in the shifter and/or transmission.

With intermittent issues, have to do testing when problem is ongoing. If it cranks good but won't start, have a helper crank it while you check for spark at the plugs, if spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse. Any applicable trouble codes?

The hydraulic clutch system is leaking and has air in it. You need to replace the master and slave cylinder.

Uh, maybe the scanner is right!?

you'll need to go to your local garage to see where you can locate a quick disconnect kit closest available to you.

Check the bulbs, if OK replace switch.

Hi Alanna, The link below is a youtube video on how to test your alternator..........I hope this helps....CHEERS.. https://www.youtube.com/watch?v=LGB6ZEjGm7Q

Had this loads of times vac.solinoids semi seized strip out copper grease problem solved.

You have a code 25 which is a side curtain air bag passenger side. Most likely the connection disconnect the airbag and reconnect it. First disconnect the battery

This code is telling you of an ECS module fault. An ECS module fault could be caused by: - the internal accelerometer not operating properly. - the backup power supply not operating properly. - an internal module circuit fault detected. - a microcontroller RAM/ROM/EEPROM fault. Before doing any of the above, disconnect the vehicles battery and Remove the main connection off of the ECS and clean with electrical connection cleaner, then reinstall, then check the connectors and wires under the seats - these fail all the time. After checking and cleaning reconnect battery. If you need further help, reach me via phone at https://www.6ya.com/expert/daniel_4061c3d97c12c4c7

Recirculation (EGR) valve codes. The Differential Pressure Feedback EGR (DPFE) sensors on these vehicles have a high failure rate. Ford now uses a redesigned DPFE sensor. In effect, since the failure rate is so high, if you get this code, replace the sensor and retest. When the DPFE Sensor starts failing, it gives the PCM bad information. The DPFE Sensor is less sensitive, and the PCM thinks less recirculated gas is being burned than is actually so. Trying to compensate, the PCM opens up the actuator too much. This excessive amount of EGR combined with the air coming in via the throttle body leans out the fuel mixture, causing a lean misfire, which is the "stumble" or "hesitation" that is common as the DPFE Sensor fails. The DPFE sensor in the Focus is not very robust, requiring frequent (every 30k miles or sometimes less) replacement or a work around. Note that complete DPFE sensor failure is a very slow process, and the check engine light won't come on until the DPFE sensor is pretty much done for. If you're experencing stumble or hesitation while cruising, and think that it might be related to DPFE sensor failure. If the stumble goes away, then your DPFE sensor is more than likely failing. Of course, replacement of the bad DPFE sensor is the official recommended fix for this problem.

Remove it. Then drive the truck to see if it vibrates. If it don't forget it. If it does, replace the driveshaft. But get it off there before it breaks something.

Under dash on drivers side near fuse box.

Yes it could be frozen but that may not be a great thing with water getting into your gear box. Something to try is to use a heating tape to warm it up or a portable forced air propane heater to shoot under the truck for a while to thaw it out. Careful of the paint if you use this method though.

I wouldn't add anything like hydrogen peroxide to the gas tank, unless you want to destroy the engine. Why not replace the sensor?

It wasn't really disabled. Either the key sensor was put in a place the receiver read it or the ECU was if default mode because of a bad wire. Either way , have the codes read and fix the problem. Keys can be bypassed with the right signal. ECU's can be put in default mode by cutting the right wire. eventually it comes back to haunt someone.