Diagnostic Test

CHECK FOR THE FOLLOWING

POSSIBLE CAUSE	CORRECTION
UNDERCHARGED BATTERY	Test the Battery in accordance with the service information. Use the GR8-1220KIT-CHRY - AGM Battery Tester/Charger Station (Originally Shipped In Kit Number(s) GR8-1220KIT-CHRY.) or equivalent to load test the Battery.
Courtesy of CHRYSLER GROUP, LLC
POWERTRAIN POWER AND GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE	Using a 12-volt test light, check all of the PCM B+, ignition feed and ground circuits. NOTE: The test light must be illuminated and bright. Compare the brightness to that of a direct connection to the Battery.
POWERTRAIN FUSES OPEN	Inspect all fuses. If any open fuses are found, check the related circuit(s) for a short to ground or high resistance.
FUEL DELIVERY SYSTEM	NOTE: Verify that the fuel tank is not empty before continuing. Perform the CHECKING THE FUEL DELIVERY SYSTEM test procedure. Refer to CHECKING THE FUEL DELIVERY SYSTEM (HARD START) .
FUEL CONTAMINATION OR EXCESSIVE ETHANOL	Check the fuel system for proper ethanol level or contamination in accordance with the service information. Refer to CHECKING FOR PROPER ETHANOL LEVEL IN THE GASOLINE .
INADEQUATE SPARK	Verify that the ignition system is operating properly.
(If equipped with Multi-air Engine) INSUFFICIENT ENGINE OIL PRESSURE OR VOLUME TO THE VARIABLE VALVE ACTUATION (VVA) ASSEMBLY:	Any of the following conditions can cause lack of oil to the VVA Assembly and should be checked: LONG TERM STORAGE (ENGINE NOT STARTED WITHIN THE LAST 30 DAYS) LOW ENGINE OIL LEVEL CONTAMINATED, DIRTY, AERATED OR DETERIORATED ENGINE OIL INCORRECT ENGINE OIL VISCOSITY ENGINE OIL PRESSURE OUT OF SPECIFICATION INCORRECT ENGINE OIL FILTER (DOES NOT MEET OEM SPECIFICATIONS) VARIABLE VALVE ACTUATION ASSEMBLY REPLACED (MULTI-AIR MODULE) Check the oil pressure to the VVA Assembly If all of the checks in the list above are good, operate the starter and crank the engine to fill the Variable Valve Actuation Assembly with oil and enable its operation. Hold the Accelerator Pedal wide open during cranking to cut off fuel to avoid flooding. After the first few cycles, release the Accelerator Pedal to allow fuel for engine starting. CAUTION: Do not exceed 20 seconds of starter operation during one cycle and allow 60 seconds cool-down between cycles. NOTE: If the oil pressure to the Variable Valve Actuation system is good and the engine still does not start continue to the next step to check the engine for mechanical issues.
ENGINE MECHANICAL PROBLEM	Check for the following mechanical issues: Check for vacuum leaks Check for proper timing chain alignment Perform a cylinder compression test on all of the cylinders. (Refer to CYLINDER COMPRESSION TEST ) . If compression is low, perform a Cylinder Leak Down Test to determine if the cause is from the valvetrain or combustion chambers. Refer to CYLINDER LEAKAGE TEST . For a combustion chamber issue check the following: Check the cylinder head for cracks Check the pistons for cracks Check for broken piston rings Check for scoring on the cylinder walls For a valvetrain issue check the following: Check for proper valve lash clearance (Intake - 0.17-0.23 / Exhaust - 0.27-0.33). If the valve clearance is out of specification, replace the valve tappets if the Camshaft lobes are not worn excessively Check for broken or damaged rocker arms Check for broken valve springs Check the Camshaft lobes for excessive wear Check for bent valves Check the valves and seats for pits or improper sealing

view repair

Perform the appropriate repair in accordance with the Service Information.