What to do If Your Car Won’t Jumpstart

September 15, 2023 3:01 pm Published by Leave your thoughts

The,Technician,Uses,A,Booster,Cable,To,Connect,The,DeadIt’s a frustrating situation – you’re ready to hit the road, but your car won’t start, even after attempting a jumpstart. Before calling for a tow truck, there are a few things you can try to get your vehicle up and running again. In this blog post, we will explore some troubleshooting steps to take when your car won’t jumpstart.

1. Check the Battery Connections

The first thing to do when your car won’t jumpstart is to ensure that the battery connections are clean and tightly secured. Corroded or loose battery terminals can prevent enough power from flowing to start the engine. Use a wire brush to clean any corrosion on the terminals and connectors. Once cleaned, reattach the terminals, ensuring they are snug and secure.

2. Assess the State of the Battery

A dead or severely discharged battery may not be able to hold a charge, even with a jumpstart. Check the battery’s voltage using a multimeter to determine its state. A fully charged battery should read around 12.6 volts. If the voltage is significantly lower, it may indicate a faulty or worn-out battery that needs replacement.

3. Test the Jumpstart Cables

Sometimes, the issue may lie with the jumpstart cables themselves. Check for any signs of damage, such as loose or frayed connections. Faulty or low-quality cables can hinder the flow of power, making it difficult to jumpstart your car. If your cables are damaged, try using a different set of cables and see if that makes a difference.

4. Look for Other Potential Causes

If the above steps haven’t resolved the issue, it’s important to consider other potential causes for your car not starting. Here are a few additional factors to check:

Ignition Switch: The ignition switch may be faulty or worn out. Try wiggling the key in the ignition while attempting to start the car. If the engine starts intermittently when doing so, it’s a strong indication that the ignition switch needs to be replaced.

Starter Motor: The starter motor is responsible for initiating the engine’s ignition. If it is faulty, you may hear a clicking sound when attempting to start the car. This usually indicates that the starter motor is not engaging properly and may need to be repaired or replaced.

Fuel System Issues: Insufficient fuel supply can prevent your car from starting. Check the fuel level in your tank to ensure it is not empty. Additionally, a clogged fuel filter or a failed fuel pump can also cause starting issues. If you suspect a fuel system problem, consult a mechanic for further diagnosis and repair.

5. Seek Professional Assistance

If none of the above steps yield any success, it may be time to seek professional assistance. A qualified mechanic will have the knowledge and tools to diagnose the exact cause of your car’s starting issue. They can perform a thorough inspection of the electrical system, starter, ignition switch, and other components to determine the underlying problem. While this option may involve additional costs, it will ensure a proper and long-lasting repair.


Dealing with a car that won’t jumpstart can be frustrating, but there are steps you can take to troubleshoot the issue. Start by checking the battery connections and assessing the state of the battery itself. Also, examine the condition of your jumpstart cables and look for other potential causes like a faulty ignition switch or starter motor. If all else fails, it’s best to consult a professional mechanic who can diagnose and resolve the problem effectively. By following these steps, you’ll be back on the road in no time.

Got Questions? Let Us Help!

Established in 2001, AMR Auto Repair & Towing is a towing service and auto repair company based in Salt Lake City, UT. As a family-owned business with over 23 years of experience behind it, we provide clean and courteous service at the right price. AMR Auto Repair & Towing does towing, heavy-duty towing, private impounding, roadside assistance, lockouts, jumpstarts, and auto repairs. Our mobile mechanics are available 24 hours a day for emergency service. Call us today!

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