Chevrolet Camaro Engine Won’t Start: 2010-2015 3.6L/6.2L

At some point every Chevrolet Camaro will have trouble starting. And there can be many reasons why the vehicle won’t begin to work. To properly diagnose a Camaro that won’t start, first identify the type of starting issue the vehicle is experiencing. Use this troubleshooting guide to trace and correct faults on a Camaro that will not turn on.

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Engine Will Not Crank When Attempting To Start

  1. Battery post and cable clamps are corroded or loose. Inspect battery cable clamps and battery posts for corrosion, clean and torque cable clamps if necessary.
  2. Battery is faulty or discharged. Test battery with multimeter and replace if needed. Use a one or two amp battery charger to recharge the battery.
  3. Automatic transmission shifter lever is not fully engaged. Ensure shifter lever is moved into position so the vehicle can come into operation.
  4. Clutch pedal not fully depressed when attempting to start the car. Make sure the clutch pedal is fully depressed when attempting to start the vehicle.
  5. Faulty ignition switch. Test ignition switch and replace if defective.
  6. Starter solenoid faulty. Test starter motor, solenoid and relay. Replace parts as needed.
  7. Defective starter motor. Test starter motor and starter relay, replace if necessary.
  8. Faulty wiring in the starting circuit. Check for frayed, loose, cut or disconnected wires.
  9. Damaged or worn starter pinion or flywheel teeth. Replace necessary parts.
  10. Starter motor pinion wedged in the flywheel ring gear.

Engine Cranks But Will Not Start

  1. Faulty Camshaft Position Sensor CMP or Crankshaft Position Sensor CKP. Test the sensors for continuity using a digital multimeter. Replace sensors if necessary.
  2. Improperly gapped spark plugs, worn plugs or broken porcelain insulator. Gap plugs to factory specifications. Replace worn or broken spark plugs.
  3. Broken timing chain. To replace timing chain, refer to timing chain inspection, removal and installation procedures in service manual.
  4. Fuel tank empty. Refill tank with gasoline.
  5. Battery discharged. Use a one or two amp battery charger to recharge the batter (Note: the engine will often rotate slowly if the battery is not fully charged).
  6. Battery terminals loose or corroded. Tighten battery cable clamps and remove corrosion.
  7. Faulty fuel injectors, fuel pressure regulator or fuel pump. Test fuel injector resistance with multimeter. Test fuel pressure with pressure gauge. To check fuel pump operation, sit in vehicle and turn key to ON position but do not start vehicle. Listen for the sound of the fuel pump activating. Hearing the fuel pump turn on means it’s functioning.
  8. Ignition system problems. Test the ignition system components; crankshaft position sensor CKP, knock sensor KS, powertrain control module PCM, camshaft position sensor CMP, spark plugs, ignition switch, individual ignition coils, battery.

Engine Hard To Start Up When Cold

  1. Faulty or discharged battery. Test battery with multimeter and replace defective battery if needed. Recharge battery with a one or two amp battery charger.
  2. Fuel system not functioning normally. Inspect fuel system and test individually fuel system components; electronic fuel pump, high pressure fuel pump (if equipped), fuel lever sending unit, fuel injectors, fuel rails, Powertrain Control Module PCM, and fuel lines.
  3. Bad intake air temperature sensor or coolant temperature sensor. Test coolant temperature sensor with multimeter. Test the intake air temperature sensor. Replace parts if needed.
  4. Ignition system faulty. Test ignition system components; crankshaft position sensor CKP, knock sensor KS, powertrain control module PCM, camshaft position sensor CMP, spark plugs, ignition switch, individual ignition coils and battery.

Engine Hard to Fire Up When Hot

  1. Clogged or dirty air filter. Replace or clean air filter and check for blockage.
  2. Fuel system failing to function normally. Test ignition system components; crankshaft position sensor CKP, knock sensor KS, powertrain control module PCM, camshaft position sensor CMP, spark plugs, ignition switch, individual ignition coils and battery.
  3. Battery connections corroded. Clean battery terminals and battery cable clamps. 

Engine Starts But Shuts Off Immediately

  1. Insufficient supply of fuel reaching the fuel injectors. Test fuel system components.
  2. Vacuum leak at the gasket between throttle body and intake manifold/plenum. There are a few different ways to test for a vacuum leak. Refer to service manual for proper testing procedures.
NOTE: This troubleshooting guide applies to the Chevrolet Camaro 2010-2011 3.6L V6 engine (LLT), 2010-2011 3.6L V6 engine (LFX), 2012, 2013, 2014, 2015 3.6L V6 engine, 2010-2015 6.2L V8 engine (LS3) SS, 2010-2015 6.2L V8 engine (L99) SS, 2012-2015 6.2L V8 engine (LSA) and supercharged ZL1 models.

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8 thoughts on “Chevrolet Camaro Engine Won’t Start: 2010-2015 3.6L/6.2L

  • August 11, 2016 at 9:08 am

    Hello, I need to know where the fuel pump flow control module fuse is located on the 2012 Camaro. Help would be much appreciated.

    • August 11, 2016 at 9:12 am

      Hey Ray. The FPFCM fuse is located in the Camaro’s right rear fuse block, which is in the trunk compartment. The fuse number is 12 (20A) for the 2011-2012 models. Hope that helps.

  • August 11, 2016 at 7:52 pm

    Good day sir Steve. I’m having problems with my starter motor. It’s not rotating at all. What would cause this?

    • August 11, 2016 at 7:57 pm

      Hey Andrew. There could be many reason why the starter might not be operating. Here’s what you should check first: Inspect the batteries charge. Test the battery with a load tester. Your local parts store can usually do this free of charge. If the battery is good, check its connections at the battery, starter motor, and solenoid. Make sure the terminals are tight and corrosion free. Make sure the battery cables aren’t damaged. Check all fuses in the fuse/relay box in engine compartment. Use a voltmeter to check for voltage at the “S” terminal on the starter solenoid (the key must be switched to the ON position when testing for voltage). If the terminal is getting voltage, replace the solenoid/starter assembly. If voltage is not present, the starter relay might be bad.

  • November 15, 2016 at 5:34 am

    My 2011 ss v8 Manuel camaro has had a starting issue and idling issue it throws fuel pump code and fuel pump control module code I replaced the pump it did not fix the problem I replaced the fuel pump control module and when first staring it it runs 10x worse idling Way worse then it wouldn’t start it at all I thought maybe a faulty control module so I got a new one and it did the same thing. But if I put the old one back in it works but with the idling issue I have to keep the rpms up to keep it from dying. And then it takes a while to start it up again.

  • November 15, 2016 at 5:43 am

    I’ve also changed the spark plugs checked all fuses and relays and attempted to reset the computer I don’t know if the computer reset didn’t work or not is just need help

  • December 3, 2016 at 11:58 pm

    2014 camaro fuel gage stopped working and check engine light came on

  • April 15, 2017 at 5:26 pm

    Hopefully someone can help me out! My 2012 camaro sometimes does not start at all. When I get into my car and turn the key just a little bit, everything turns on as normal, but as soon as I turn the key to start the engine it dies completely and now I got a death car with the key stuck in it. The only way to start it up again is by jump starting the car. After that it starts normal for maybe 5 or six times and then it does the same thing over again. Any ideas what can be causing this? I checked the battery and its in good condition.


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