If your engine does not start, make sure that the car battery is charged and has not failed. Here are a few tricks to try if the engine cranks but the car won’t start: Family Handyman. That’s the fuel pump priming the injection system. AAA came checked out battery fine. In the Car Talk Communities, there’s a question this week about a 2005 Mercedes-Benz C-Class that won’t start, despite the battery being “good.” Before you go buying new batteries, alternators or starters, there’s a sequence of diagnosis you should follow to figure out what’s going on. Car Won’t Start Symptom – Engine cranks but won’t fire up. If you have a battery tester that can measure cranking amps, test your battery to see if it's weak. A car that turns over but won't start can be a real headache and leave you searching for a solution. Locks work fine too, as does alarm. car cranking but not starting? Loosen the high pressure line at two injectors and visually check fuel delivery while cranking the engine. Replace injection pump, if fuel is not being delivered. The reason why the radio, dash lights, headlights, and other electronics draw power while the engine doesn't has to do with the amount of current each device draws and what may be … With most vehicles, there is a specific testing algorithm that you can follow to diagnose the cause of an engine that turns over but won't start. In this blog, the above mentioned points state the common reasons behind a car’s engine not starting … It could save you hundreds of dollars: … … i checked the battery and the voltage is about 12.5 and when i tried jumping it, it will not start either. I dropped off the car at Pep Boys Testing is done by using a test light while the engine is cranking. Drive or run your car for about an hour or so, turn it off, … Starting with key in ignition is perfectly fine. It can be anywhere in the engine and thus, your car cranks over but won’t start. If your engine will turn over but just won’t start you could have a few different problems. Why is My Car Cranking but not Starting? Many a time, you may not know the fault in the vehicle. Your starter is the force that turns on the engine, so if this is broken or faulty, it will not turn on the engine and resultantly, your car will not start. Try: Swapping Relays. OK To start, your engine needs the right amount of fuel, a spark at the right time and air to mix with the fuel. My buddy’s remote starter with bypass is having an issue. If your car won’t start but the lights and radio work fine, it could be one of several problems, possibly including a dead battery. I will give a brief chronology of my problems over the last 6 weeks and hopefully I can get a recommendation on what to do next. Just like a faulty ignition switch, a broken starter is another reason why car won’t start. If you don't have a battery tester, you can still see if the battery is good by jump-starting the car. 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