Truck won't start
Can I keep driving?
This is a cannot-move situation. Stay with the truck, set your triangles if you are on a shoulder, and use the location box below to get ETAs from shops that come to you.
Do this first
Three checks, in this order. They take under five minutes and they tell the shop what to bring.
- Turn the key and listen. Nothing at all, not even dash lights, means no power is reaching the truck. A single click or a rapid clicking is a battery pack that cannot turn the starter. A slow, dragging crank is a weak pack or a starter on its way out. A strong crank that never fires is not a battery problem at all; it is fuel or air, and the mobile tech needs to know that before they roll.
- Look at the batteries. Pop the battery box. Heavy white or green corrosion on the posts, a loose cable, or a swollen case is enough to stop a healthy truck. Do not try to clean a corroded post with the key on.
- Check the obvious. Is the truck in neutral with the parking brake set? Is the fuel gauge honest, or has the truck been sitting through a cold night with the tank near empty? A gelled fuel filter in winter looks exactly like a starter problem until someone pulls the filter.
Write down what you heard in step one. "Clicks but won't crank" and "cranks but won't fire" send very different trucks to very different fixes.
What it usually costs and how long it takes
What you pay depends on which of three things it turns out to be:
- Jump start or battery replacement. The cheapest outcome and the fastest. A mobile tech can test the pack on the spot and swap batteries at the truck. Most Class 8 trucks carry three or four batteries, and replacing one without the others is often a false economy.
- Starter or starter solenoid. Still a mobile job on most trucks, but it needs the right part on the truck, which is why the tech will ask for your make, model and engine before they leave.
- Fuel or air delivery. Clogged filters, a failed lift pump, or air in the lines. Sometimes a roadside fix, sometimes a tow.
Time is the real cost here. A jump is minutes once the tech arrives. A starter is measured in hours. The wait for the truck to reach you is usually longer than the repair itself, which is why the list below sorts by who can get to you, not who is closest on the map.
Where to get it fixed
Cities with the most shops that handle batteries, starters and jump starts. Each link opens the city list sorted by who can come to you.
Frequently Asked Questions
The truck clicks once and nothing happens. Battery or starter?
Usually battery, but not always. A single hard click with bright dash lights points at the starter or its solenoid. A click with dim or flickering lights points at the batteries. A mobile tech carries a load tester and will know in two minutes. Tell them which one you saw so they bring the right part.
Can another truck jump-start a Class 8?
Yes, with heavy-gauge cables and the right order of connection, and only if both trucks are 12-volt systems. Many drivers prefer to call a mobile service because a bad jump can damage the electronics on either truck, and a pack that needed a jump will usually need one again tomorrow.
It cranks strong but never catches. Is that still a starter problem?
No. A strong crank means the batteries and starter are doing their job. The engine is not getting fuel or air, or in winter the fuel has gelled in the filter. That is a different tech and sometimes a different part. Say "cranks, won't fire" when you call.
Do I need a tow, or can someone fix it where I am?
Batteries, cables, starters and fuel filters are all roadside jobs for a mobile truck. A tow is usually only needed when the cause is deeper, for example a failed fuel pump or an engine that has lost compression. The list on this page puts mobile-capable shops first so you can get an ETA before deciding on a tow.
Will replacing one battery fix it?
Sometimes, briefly. Batteries in a pack age together, and a new one wired to three tired ones gets dragged down fast. Most shops will test every battery in the box and tell you how many are actually holding a charge.
Why did it start fine this morning and not now?
A pack that is on the edge will start a warm truck and fail on a cold or long-parked one. Short idles, a lot of hotel load from the sleeper, and a charging system that is slightly under spec all drain the pack over a day without any warning light.
- The truck clicks once and nothing happens. Battery or starter?
- Usually battery, but not always. A single hard click with bright dash lights points at the starter or its solenoid. A click with dim or flickering lights points at the batteries. A mobile tech carries a load tester and will know in two minutes. Tell them which one you saw so they bring the right part.
- Can another truck jump-start a Class 8?
- Yes, with heavy-gauge cables and the right order of connection, and only if both trucks are 12-volt systems. Many drivers prefer to call a mobile service because a bad jump can damage the electronics on either truck, and a pack that needed a jump will usually need one again tomorrow.
- It cranks strong but never catches. Is that still a starter problem?
- No. A strong crank means the batteries and starter are doing their job. The engine is not getting fuel or air, or in winter the fuel has gelled in the filter. That is a different tech and sometimes a different part. Say "cranks, won't fire" when you call.
- Do I need a tow, or can someone fix it where I am?
- Batteries, cables, starters and fuel filters are all roadside jobs for a mobile truck. A tow is usually only needed when the cause is deeper, for example a failed fuel pump or an engine that has lost compression. The list on this page puts mobile-capable shops first so you can get an ETA before deciding on a tow.
- Will replacing one battery fix it?
- Sometimes, briefly. Batteries in a pack age together, and a new one wired to three tired ones gets dragged down fast. Most shops will test every battery in the box and tell you how many are actually holding a charge.
- Why did it start fine this morning and not now?
- A pack that is on the edge will start a warm truck and fail on a cold or long-parked one. Short idles, a lot of hotel load from the sleeper, and a charging system that is slightly under spec all drain the pack over a day without any warning light.
This page is general guidance for professional drivers and is not a diagnosis of your truck. Conditions, equipment and local rules vary. If you are on a live shoulder, your safety comes before the truck: set your triangles, stay clear of traffic, and call for help. Shop listings are provided by Trucker Path users and the businesses themselves; availability and pricing are confirmed by the shop, not by Trucker Path.