Jeep Wrangler Won’t Start But Battery Is Good? (6 Easy Fix)

In off-road automobiles on the market, the Jeep Wrangler is the greatest. It is capable of doing everything, from daily commutes to outdoor excursions, but just like any other vehicle, it has some frequent problems. And the most prevalent of which is that sometimes it won’t start.

Don’t worry, though, if you don’t know how to handle this kind of problem. We have covered the causes of the problem and solutions in depth in this article.

Why Does My Jeep Wrangler Not Start Even Though My Battery Is Good?

A faulty, dirty, or corroded ignition switch, starter, or spark plug can be the possible cause of the issue where the jeep wrangler won’t start but the battery is good. 

Jeep Wrangler may be unable to start due to several potential problems though the battery is good. Here are the lists of the several potential reasons for this issue.

  • Insufficient Fuel.
  • Faulty Starter.
  • Defective Ignition Switch.
  • Defective Alternator.
  • Faulty Starter Relay.
  • Damaged Fuses.

Read Also: Jeep Key Stuck in Ignition: How to Deal With It?

6 Easy Fix For Jeep Wrangler Won’t Start But Battery Is Good  

You now have a foundational knowledge of the potential reasons your Jeep Wrangler won’t start problems-based on the points previously given. This section will go through these issues when they arise, potential repair costs, and complete solutions.

#1- Check Fuel Quantity: 

If your jeep is not starting though the battery is in good condition, you must check its fuel level first. If you notice that the fuel level is too low, you must refuel it. Otherwise, you won’t be able to start it. 

You can refuel your jeep from any nearest station easily; its cost depends mainly on which type of fuel your jeep uses and the area where you live. 

#2- Examine And Repair Faulty Starters.

The starter itself consists of a tiny motor that runs on battery power.  The starter creates suction to turn the engine over. In addition, a set of electrical components manages the starting motor.

Even when the starter works properly but any of these parts malfunction, your Wrangler won’t start.

Here are several indications that may help you determine that the starter has problems.

  • Noises: If you notice whining, clicking, or grinding noise when you try to start your jeep, you can be sure that the starter has problems. 
  • Smoke: This is another indication of a faulty starter. If you notice that the smoke is coming out from the engine, it indicates that the starter is totally blown up. 

If you are sure that the starter is malfunctioning, there is no other way to solve this problem without changing it. Follow these given step-by-step procedures to change it successfully. 

  • Step 1: Find the starter and unplug it from all the connections. Detach the solenoid connector as well.
  • Step 2: Remove the bolts which hold the starter in place and carefully take out the starter module.
  • Step 3: Change it out with a new one, then reconnect everything.

If you decide to replace it, it will cost you between $300 and $400. However, hiring a professional technician costs you between $400 and $500.

Read Also: Jeep Shut Off While Driving And Won’t Start: Main Reasons And Solutions

#3- Replace The Defective Ignition Switch.

One of the most critical parts of your Jeep Wrangler is the ignition switch. If it malfunctions, the entire car won’t be able to move. Various problems might result from a bad ignition. These include stalling problems, starting difficulties, and radio or accessory power issues.

In your Jeep Wrangler, the following are a few of the typical signs of an ignition system failure:

  • The engine won’t start: If your ignition switch is malfunctioning, no matter what you do, the Wrangler won’t start.
  • Stop while driving: Stalling is the most obvious sign of a broken ignition switch. Whenever this occurs, the engine won’t be able to operate until it has been completely replaced.
  • Starts but fails: It’s a pretty good sign that perhaps the ignition switch is damaged if your Jeep Wrangler starts and suddenly stops within a few seconds.

The ignition switch may be readily replaced to solve this issue. Although it’s not a simple process, you can change the ignition switch yourself. An experienced technician should be used for this. And this will cost you between $135 and $150.

#4- Fix Defective Alternator.

The alternator maintains the battery’s voltage to power the car’s subsystems. When your Jeep’s alternator fails, driving on the road might be risky because of the increased chance of failure.

The most typical indications of a damaged alternator in a Jeep Wrangler are as follows:

  • The battery alarm system blinks.
  • Devices will not charge.
  • Reduce the interior and headlights brightness.
  • The automobile is having difficulty starting.
  • After starting, the car emits a whining or screaming sound.
  • Under the bonnet, there is a strong odor of burning rubber.

The only way to address this problem is to replace the defective one,  which can cost between $433 and $657.

Read Also: How To Fix Jeep Wrangler Cruise Control Won’t Turn On Issue?

#5- Replace Faulty Starter Relay.

It would be impossible to start a jeep ordinarily without the usage of the starting relay. When you turn the key in on position, the starter relay engages, and the engine starts. 

This connects your ignition switch, starting motor, and fuel pump to the power supply. If the starting relay is faulty, the starter motor will not turn on.

The following are the primary signs of a faulty starter relay:

  • The vehicle will not start.
  • Clicking sounds.
  • The starter motor operates continuously.

To resolve this issue, you must replace the defective relay with a new one. And this starting relay repair typically costs between $62 and $71.

#6- Locate And Replace Damaged Fuses.

Fuses are another crucial tiny component in a jeep wrangler. Sometimes, these fuses can be blown for several reasons like over-voltage, water damage, etc. When one of these fuses gets damaged or blown out, it prevents the engine from starting. 

To solve this problem, just locate and replace the damaged fuse. Here the replacement fuse must have to match the previous one; otherwise, it won’t work. 

Replacing a damaged fuse is so easy if you follow these procedures.

  • Step 1: First, locate the damaged fuse and take it out by hand or with any tools.
  • Step 2: Set the new fuse and press it down until it is firmly set up. 

If you replace it yourself, it will cost you around $4 to $6. But, if you take a technician’s help, you have to pay an additional $90 to $100 for labor costs. 

Read Also: Jeep Wrangler Ignition Switch Problems: Easiest Way To Solve


After going through this article, you may have some queries. In this section, we attempted to address the most often-asked questions. Read this FAQ to discover the answer you’re looking for.

What causes the Jeep Wrangler to keep turning on but not starting up?

This might be because gasoline isn’t entering the engine. Fuel injector contamination is one possible cause of this. Rust, corrosion, or other debris can accumulate over time and block the fuel injector nozzles.

How long does a battery last in a Jeep Wrangler?

The typical battery life of a Jeep Wrangler is three to five years, while actual battery life might vary greatly based on driving patterns, battery type, weather, and size. It doesn’t necessarily indicate that your battery is performing at its best just because it isn’t fully dead.

Is it hard to repair a Jeep Wrangler starting issue?

No. These issues are readily resolved if you have an understanding of how to handle them correctly. But occasionally, certain issues will be beyond your control, and in this case, you must seek the assistance of a professional.

How long does a technician need to fix a Jeep Wrangler starting problem?

It primarily depends on the topic. A skilled technician may be able to solve this problem quickly in some cases. Typically, the Jeep Wrangler won’t start problems that take two to three hours to resolve. However, fixing certain models could be challenging and take five to six hours.


Your Jeep Wrangler making clicking noises and not starting might be due to several different things. Start by examining the most obvious, simple-to-diagnose issues, such as loose connections and fuel quantity, when you’re trying to figure out why.

Even though the Jeep Wrangler seems meant to be used for more than just daily commuting, issues can sometimes arise. The best course of action to take if the Jeep Wrangler won’t start is to investigate the problem. 

To seek help, however, if you reach a stage where you believe the problem is beyond your level of knowledge, call a Jeep technician.

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