Dan Ferrell writes about do-it-yourself car maintenance and repair. He has certifications in automation and control technology. When your engine cranks but won't start or run, it could mean your engine is having trouble producing a spark, getting fuel, or creating compression.
The most common causes are in the ignition for example, a bad ignition coil or fuel system for example, a clogged fuel filter. However, the source may also be a mechanical fault for example, a leaking valveor faulty components in other systems.
What "crank-no-start" doesn't generally mean is a problem with the starter. If the engine cranks normally, you don't have a starting problem. If it isn't cranking right the engine rotates slowly or doesn't rotate, or you hear weird noises or nothing when you try to start the enginecheck this other practical guide to troubleshooting the starting system.
Whatever you do, avoid cranking the engine repeatedly with the hope that the engine will fire up. You may drain your battery of power and damage the starter motor in the process.
Instead, try to use the charge left in your battery to locate the fault. This guide will first give you six quick things you can check, and then three systems to troubleshoot—the spark, the fuel, the compression—using some simple and quick diagnostics. Then, for more help, you'll see a list of components in related systems that can be associated with a no-start condition. To operate efficiently, an internal combustion gasoline engine needs a good spark, the right amount of fuel, and good compression a healthy mechanical condition.
The lack of any of these three things will prevent your engine from starting. So, the next three sections will list series of steps to help you find out whether your engine is lacking adequate spark, is not getting enough fuel, or has too low compression.
First you want to check that a good spark is reaching the cylinders. You can do this test without a spark tester, but it's better to use one, because a weak spark as well as a missing spark can prevent your engine from starting. If you don't see a spark, repeat the test.
I've got a Ford Focus with a 2 litre Duratec with a crank,no start problem. I have changed both crank and cam sensors and have power to all four coil over plug coils and to one side of the injectors on all with the key on but am not getting spark to spark plugs when cranking. I have power to fuse and changed relay to ignition. Could ignition switch cause this no spark, no injector pulse condition.How to Fix a Car that Won't Start When You Turn the Key
I'm assuming that this is your vehicle, it worked before, and now it doesn't. Valves are present, the engine holds compression, the cam is timed correctly, etc If this was a vehicle you bought in an inoperative state, you need to check all that stuff first.
Let's assume you correctly have identified no spark as your trouble And on a modern engine with fuel injection, we're fortunate enough to have an Engine Control Module, a computer, with feedback.
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You get codes for many faults Generally the faults are recorded affect only the fuel system. The system is not so helpful on troubleshooting electrical faults. There are a couple of exceptions. If however the feed system to the coil on plug is awry, you won't know that. You are going to need to obtain a wiring diagram for troubleshooting. You are going to want to find the page for ignition. If you do have a defective PCM, I believe Ford only sells those for a period of ten years after production.
You should probably speak to the local Ford dealer service manager on this first if you determine your PCM is kaput. I had exceptional help with Autozone on an aftermarket PCM. These guys were awesome. The product was fairly priced.
You definitely want to do this at the local store, and not online. You will still have to have your keys programmed. My experience is to use a Ford Dealer for this. Questions for you: Where are you located? Has this car seen a lot of hot temperatures? My guess is high temps lead to IGBT failure, if that is indeed the trouble If you can't do this step, you aren't ready for the repair.Several months ago the car died on me and I was forced to get a tow back home.
Came out of the school, jumped in the car, started it up and was driving out of the parking lot when she died. I tried to restart it and the engine would crank but refused to turn over. The weather at this time was fine more on this later fortunately, so waiting for the AAA tow truck was not a problem. Back home I tried to start it and again, the engine would crank but not fire.
Turns over but won't start.
Like last time the engine would crank but not fire. The lights worked, the radio worked. The engine would crank but not start. Although…once or twice it fired up and ran normally for a few seconds, just long enough to get my hopes up, then it slowly died. The car did start, only to once more slowly die after a few seconds, just like before.
This time when I tried to start it again I did hear the fuel pump. And it was loud…and long. Heard it, that is. And that was it. Nor did I hear the Fuel Pump whine.
But when I checked the fuse box I discovered the Fuel Pump fuse was shorted out. Could this be the problem? I acquired a new 15 Amp fuse and replaced the shorted out one and, with crossed fingers, turned the ignition key. Now it was time to get it to the Mechanic. For two months. In the week leading up to Christmas the rain had been pouring down here in Los Angeles. During this very wet pre-Christmas week the car ran just fine without a hint of a problem.
Now I say it was wet and it was. If you live in L. At times I was driving through several inches of water and was putting up large rooster tails and the car was parked outside all day in the rain, but come the afternoon when it was time to come home it started up just fine. I drove it for the last time last Tuesday, Dec.
No problem. Car started and ran just fine with no indication of things to come. Last night, Monday, Dec.I've had my car for 3 yrs. Maybe in an hour or next day it'll start again might run for weeks then again only cranking. I've had ignition switch clutch switch. I'm wasting money I don't have. A mechanic is supposed to do diagnostic tests for proper spark fuel pressure etc.
Do you use different keys at anytime or the same one? Is there any other things associated with the no start condition? Hotcoldfirst thing in the morning? Lorenz68 answered 2 years ago. Doesn't matter if it's morning evening afternoon. Cold hot warm. Happens randomly. Wouldn't start last night. I was stranded both times took 3 hrs of waiting then it started just fine.
I work out of it. I need it otherwise I'd push it off a cliff. Thanks anyways. Within an HR to a couple it'll start again. I'm a girl. Bailey answered 6 months ago. I'm having the same exact problem and rely on my focus as well I found banging on the ignition helps sometimes but idk what else to do I'm at a loss. Ever figure out what was wrong? It'll b completely silent. Why causes my right rear tire of my Ford Focus to lock up? How do I fix this issue?
I had my ford focus right front wheel bearing replaced and when I got my car back after it was done, the ABS light and tracking car light went on. How do I get rid of these two lights? Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus.
Ford Focus Experts. Find great deals from top-rated dealers TM Search.My 06 Focus turns over but doesn't start. All lights on the dashboard light up. I have checked oil and fuel. Was slow to start the last couple of times but seemed okay. Any advice, please? I would recommend replacing the battery.
2011 Ford focus won't start
Try jump starting it. If it starts, it's likely a battery or alternator. Jkristy84 answered 6 months ago. Make sure your shift sensor is working. It could be called neutral safety switch, transmission range sensor, or something along those lines. It's tough to test these sensors without a decent mechanical computer.
If it doesn't cost to much, I would buy a new one and return it if it doesn't fix the issue. Replaced Steering Column, car turns on but wont start or turn over.
Also found a PCM diode outside shell melted but intact inside. I was driving my Ford Focus and as I was driving it stopped. I couldn't give it gas and it was difficult to turn the steering wheel too. I did experience a few "stutter steps" within the mont For about a month my car would want to start but wouldn't unless I pumped the gas.
Yesterday I went to leave and it absolutely would not start the engine. The radio and lights worked fine but even When turning the car over car does what it's suppose to do but as soon as I release the key it dies. I can get it running but I have to hold the key in the forward position when I do instrument p Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus.
Start a new Ford Focus question. Search Ford Focus Questions. Ford Focus Experts. Find great deals from top-rated dealers TM Search.If no lights coming on in the dashboard and no other electrical consumers work, the battery could be completely dead or there is no connection between the battery and the vehicle electrical system.
Check if the battery terminals look tight. If the battery is completely dead, jump starting might help. In this case, try turning the steering wheel left and right while gently jiggling the ignition key — this might help to release the steering lock. Check the battery and the terminal cable connections. If they look really corroded, you need to clean the battery posts and cable connectors or replace the cables and try to start the engine.
Also check the starter. The solenoid attached to the top of the starter can fail, as well as the components inside. Replace starter solenoid, starter contacts, starter assembly or repair starter circuit as required.
Very often this could be caused by a low battery or poor connection between the battery and starter. There are many possible causes, but we know it is neither a battery nor a starter problem. Just remember: a vehicle will always require air, fuel, and the ignition to operate. Check the fuel. If the wrong amount of fuel is being injected into the combustion chamber, or being injected at the wrong time, the engine will not start.
Again, this will be a case where the engine cranks over, but will not actually run. This could be caused by a few different parts including the fuel pump, fuel filter, fuel injectors, and fuel lines. Some of those options are a stretch, but do have an effect on the system. Start with the fuel injectors, and make sure they are clean.
Check the spark. Without spark to ignite the fuel mix in the combustion chamber, the engine will not start. Spark issues are not limited to the plugs.Search your problem. More specific problems:. Top problems. Won't start Bogs down Stalls Starting. I was driving down the road and the car started to bog out I left off gas and gave it more gas and did same thing and stalled and won't start back up. Have a 05 1. Alternator Noise Won't start Ignition switch Starting. When trying to start it, won't turn over.
Hear a small clicking noise. Tried to jump, nothing, checked ignition switch, and alternator connector, still nothing works. Sounds like there could be either a problem with the starter motor or the power supply to it, the click to hear is the relay engaging you can hear this on as it is rather large you could try a continuity check between the relay sorry but i don't know the location and the starter, if power can get to it then it is the starter motor.
I had the same problem it was the lead wire to the starter motor the nut had come loose it needs a 13 mm spanner awkward to get at but worth a try. Won't start Starting. I have to push in really hard to start the car I have already broke one key and the second one has a crack in it.
What do I need to do to get this fixed I love my car besides this issue. Friend drove to my house with no previous problems. Instrument panel does not illuminate, engine does not turn over, a thump noise comes from the trunk area. Lights, horn, flashers, interior lights and fan work.
Checked fuses, jumped, no luck. Check the fuel pump and also if there is dirt in the spark plug. Let me know if you find something.
Battery Relays Won't start Starter Starting. I bought a new battery,relay starter all new when I turn the key on everything works but won't start.