Ford Ranger is a trustworthy road companion, however its a device with thousands of interconnected parts, and like any other an equipment it periodically fail to provide normal operation. In this write-up we walk through most common reasons of Ranger’s malfunction and how you have the right to fix the problem.

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2020 Ford Ranger – (photo by Ford)

The many common causes that hinders normal beginning operation of her Ranger are dead key fob battery, dead 12v battery, corrosion top top battery terminals, negative alternator, clogged fuel filter, broken starter, blown fuse, empty gas tank, immobilizer error or any type of fault in the electric system.

1. Weak Battery

If her Ranger’s engine won’t crank or cranks very slowly, climate the most likely culprit is a weak or dead 12v battery. Investigating an ext closely and doing a battery voltage test will certainly clarify whether the beginning problem is because of the battery. A test can be done to measure up the voltage in between the battery poles, check the acid level and also assess the problem of the starter battery.

If a new car battery has been installed, the battery might not have actually yet got to its full capacity. Over there is nothing to concern about. A new battery only establishes its full capacity end time.

Location of 12v battery ~ above Ford Ranger

Test 12v battery

The voltage that the battery on her Ford Ranger have the right to be measured precisely with a multimeter. Before the test, the multimeter is set to the voltage selection of the battery and also connected come its plus and minus poles. Successful trial and error of the automobile battery, i.e. Check the voltage, usually outcomes in values ​​of approx. 12 to 13 volts. Values ​​above 14 or listed below 11.5 volts need an experienced assessment that the problem of the automobile battery. Due to the fact that the battery may have a defect through these measured values ​​and should be replaced.

Jump begin Ford Ranger

If dead battery is the factor for the malfunction of her Ranger, girlfriend can conveniently jump begin it using jumper cables and also a healthy battery from another vehicle, or making use of a battery booster if available.

First connect red cable come the confident terminal of her Ranger’s dead battery, then to the confident terminal the donor battery. Next connect black cable to the an adverse terminal the donor battery, then to the bare steel in the engine bay of her Ranger. Start the donor vehicle and also then your Ranger. Eliminate the cables in turning back order.

Illustration for jump beginning procedure

2. Corrosion on battery

Corrosion on the contact of your automobile battery leader to ns of contact and also reduced present flow, which method that her engine deserve to no longer start properly.

To know if her Ranger’s starting problems room from dirty battery contacts, you need to investigate them. If you lift the rubber covers over the 2 battery terminals, you can check the terminals for corrosion. If you uncover white deposits or silvery-green deposits, but no further cracks or damage, you do not need to replace the battery, just clean it.

Clean battery corrosion

To clean the battery on her Ford Ranger, you have to remove the pole cables first, which requires no special knowledge, just a tiny concentration, together the order is very important. First remove the black color cable native the an adverse pole. If the pole clamp is an extremely tight, you have the right to open it through pliers. We advise against using metal pliers, but if you use them, you must make certain that you perform not touch any kind of other components of the body. Next you have the right to unplug the red confident pole cable. Once the battery has actually been eliminated from the circuit, you have the right to start clean the corroded battery. After cleaning, reconnect the terminals.

3. Weak key fob battery

If your Ranger has actually push start/stop button, then its feasible that your vehicle may no start because of weak vital fob battery. Don’t worry, you deserve to still start your automobile – the battery is only supplied to send the signal for locking/unlocking. If the vital fob battery is empty, the door no much longer locks or unlocks in ~ the push of a button. The doors should then be opened up manually. The immobilizer is controlled by a passive transponder. Passive means, amongst other things, the the transponder in the vital does not require its own power source.

How to begin Ford Ranger v dead an essential fob battery

If you have actually a version of Ranger which only has a vital fob through start/stop button and no location to insert a key, then try placing your crucial fob together close to the start/stop button as friend can and also then start the vehicle. If the doesn’t work, climate look in your vehicle’s operational hands-on for exact location of crucial fob placement, together it might vary relying on model.

Tip: You can try beginning your Ranger v its second key. The will also rule out any kind of other difficulty with the very first key, because that example, water damage.

4. Damaged starter motor

A starter is a engine for starting the engine of your Ranger. The mean life of a starter motor is about 100,000 come 150,000 miles, and also the life will certainly be shortened if the engine is started an ext frequently. In any kind of case, since the starter motor additionally has a minimal life, it will malfunction after using the automobile for a long time, and also if the starter motor division down, the engine will not start.

Symptom: when you rotate the an essential to begin the engine of her Ranger, you will hear a click sound, i beg your pardon is the sound the a negative starter motor. And if the starter engine does not job-related with a healthy battery, doubt a malfunction of the starter.

If the starter fails, it usually demands to be changed with a brand-new one.

Temporary settle for starter

If the engine does no start because of the starter, the engine might start if you rotate the an essential while hitting the starter motor v something like a pole or steel tool. This workaround is reliable when the components inside the starter space stuck with each other or the gears room slightly the end of alignment.

However, the is possible that the starter is nearing the finish of its life, so it is recommended the you have it inspected at a dealer or maintain shop.

5. Defective alternator

An alternator is a generator the produces electricity. If her Ranger’s alternator fails, it will certainly not be able to produce electricity and the battery will certainly not have the ability to charge. Therefore, also if friend think the the cause of the engine not beginning is a battery failure and also replace the battery, the battery will soon run out and the engine will not start.

Alternators hardly ever break down. In particular, contemporary cars have improved performance, so that is said that they will last 200,000 to 300,000 miles. Still, it can breakdown depending on just how you use it, and in the case of a provided car, the alternator may be rather old. Nothing let her guard down.

If the alternator division down, it should be changed with a new alternator.

6. Clogged fuel filter

The fuel filter of your Ranger does not wear out like a mechanically part, however it gets clogged through dirt and also airborne particles and clogs end time. The permeability the the filter drops, and also so walk the fuel pressure. To a specific extent this doesn’t matter, yet if the fuel filter is as well dirty, the engine will no longer perform at complete capacity and also in some instance may not start at all. Clean is no possible, you have the right to only change the filter.

7. Fuel pump failure

If her Ranger’s fuel pump fails, climate the engine i will not ~ start. The pump usually ensures the the important amount the fuel is passed indigenous the tank to the injection device of the engine with adequate pressure.

Before your fuel pump stops working, it typically becomes noticeable: if her car’s engine breaks under from time to time, the automobile is challenging to start, the engine jerks a little or the engine performance drops, girlfriend should have actually your pump checked.

Wear or contamination of the pump can be the factor for this. If the pump is leaking, a power contact is broken, a heat or a pump bar is broken, the fuel pump is usually additionally noticeable before failure. You can have a defective fuel pump replaced in your workshop.

8. Swollen fuse

In rarely cases, a puffy fuse could additionally be the culprit in the breakdown of her Ranger. Check all fuses in the fuse box important for beginning the engine. But, be careful when loan a hand you yourself to the fuse box! package is under power and also repairs or exam should constantly be done in a workshop.

9. Defective spark plugs

Without functioning spark plugs, the engine will certainly not start. The spark plugs us are frequently not impacted by a defect. Instead, plug relationships on the ignition mechanism come loose. If only one plug is actually loose, you have the right to fix the problem yourself ~ above site. If a spark plug has actually failed, it should be changed in the workshop.

10. Rodent damage

Rodent damages can be another reason why your Ford Ranger i will not ~ start. The animals crawl under the vehicle and also bite with cables and also wires. In principle, this can affect all vehicle systems such as the fuel supply, the oil it is provided or the power supply.

The rodent damage can generally be seen conveniently by looking into the engine compartment. The damage caused by the rodent bite can be repaired in the workshop. Be all set for relatively high expenses here.

11. Engine failure

Although very rare, yet it can likewise be the cause of the break down of her Ranger. If a automobile has an engine failure, climate nothing functions anymore. It is not unusual for the driver that a automobile to it is in responsible for such damage. Typical causes include tearing of the timing belt, untrue fueling, insufficient oil, hydrolock, overheating that the engine, or continuous driving in an excessive speed range.

Ford Ranger engine

Only an skilled mechanic can diagnose engine failure in a workshop.

Use OBD2 scanner for diagnosis

Since Ford Ranger is equipped with on-board diagnostics (OBD), a fault diagnosis can provide initial indications of where the break down is located.

To start troubleshooting, girlfriend must first connect the diagnostic tool to your Ranger. The OBDII connector is usually situated under the dashboard. V the cable connected, you should turn the ignition on. Yet be cautious not to start the engine. Many diagnostic devices then asking for part information about the vehicle. The is crucial that you go into this 100% correctly, otherwise the result of the search might be falsified. In addition to the car manufacturer and model, friend usually likewise have to form in the engine and vehicle i would number. For specific troubleshooting, constantly check whether the info is correct.


There are plenty of reasons why her Ranger might not start. When searching for the trigger, it is advisable to use the exclusion principle and also only begin with the most obvious cause, the empty battery.

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In any kind of case, that is advisable because that laypersons to speak to a failure service or a workshop. In the event of a defect, the last can straight initiate the repair.