Diagnosis And Testing: Performance
WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
| CONDITION | POSSIBLE CAUSE | CORRECTION |
|---|---|---|
| ENGINE WILL NOT START | 1. Weak battery. | 1. Charge or replace as necessary. |
| 2. Corroded or loose battery connections. | 2. Clean and tighten battery connections. Apply a coat of light mineral grease to the terminals. | |
| 3. Faulty starter. | 3. Refer to DIAGNOSIS AND TESTING . | |
| 4. Incorrect spark plug gap. | 4. Refer to SPECIFICATIONS . | |
| 5. Dirt or water in fuel system. | 5. Clean system and replace fuel filter. | |
| 6. Faulty fuel pump, relay or wiring. | 6. Refer to MECHANICAL . | |
| ENGINE STALLS OR ROUGH IDLE | 1. Idle speed set to low. | 1. Refer to MECHANICAL . |
| 2. Vacuum leak. | 2. Inspect intake manifold and vacuum hoses, repair or replace as necessary. | |
| ENGINE LOSS OF POWER | 1. Dirty or incorrectly gapped spark plugs. | 1. Replace spark plugs. |
| 2. Dirt or water in fuel system. | 2. Clean system and replace fuel filter. | |
| 3. Blown cylinder head gasket. | 3. Replace cylinder head gasket. | |
| 4. Low compression. | 4. Refer to MECHANICAL . | |
| 5. Burned, warped or pitted valves. | 5. Replace as necessary. | |
| 6. Plugged or restricted exhaust system. | 6. Inspect and replace as necessary. |