Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2008WRANGLER RUBICON, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDTCS U1110 TO U1418, SYSTEM CHECKS, CHECKING POWER AND GROUND CIRCUITS, ENGINE CRANKS BUT NO START, INTERMITTENT NO CRANK CONDITION*CHECKING THE FUEL DELIVERY SYSTEMPOSSIBLE CAUSES
2008 Jeep Wrangler Rubicon, Standard
Possible Causes
2008 Jeep Wrangler Rubicon, StandardSECTION Possible Causes
| Possible Causes |
|---|
| RESTRICTED FUEL SUPPLY LINE |
| FUEL PUMP INLET STRAINER PLUGGED |
| (K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| (K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO GROUND |
| (K31) FUEL PUMP CONTROL CIRCUIT OPEN |
| (N1) FUSED FUEL PUMP OUTPUT OPEN |
| (N1) FUSED FUEL PUMP OUTPUT SHORTED TO GROUND |
| FUEL PUMP MODULE |
| TIPM |
| PCM |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.