HIGH System: Ignition & Misfire System SAE J2012 Standard

P0305: Cylinder 5 Misfire Detected

The ECM detects crankshaft deceleration specifically during the firing stroke of Cylinder #5 (first cylinder on Bank 2 of V8/V6 engines).

Driveability & Safety Advisory

Drive short distances directly to a repair shop.

Official Manufacturer TSB Advisories

Dodge 09-007-18 Target: 2011–2018 Ram 1500 / Dodge Charger (5.7L Hemi)

Factory Condition: Cylinder 5 camshaft lifter roller needle bearing seizes, wiping out camshaft lobe.

OEM Service Remedy: Inspect Cylinder 5 pushrod and lifter; replace camshaft and all lifters.

Physical Component Location & Service Access

First cylinder on Bank 2 (driver side front on Ford/GM V8, passenger front on Dodge Ram 5.7L Hemi).

Electrical Specifications & Live PID Benchmarks

Scan Tool Live Data Targets

Cylinder 5 Misfire Count: > 20 counts

Digital Multimeter (DMM) Specs

Coil Resistance: 0.8 – 1.4 Ohms
Spark Plug Gap: 0.044 inch

Documented Model-Specific Case Studies

2012–2017 Ram 1500 (5.7L Hemi)

Root Cause: Wiped cam lobe on Cylinder 5.

Verified Fix: Replace camshaft and lifters.

Technician Inspection & Testing Workflow

1

Swap Cylinder 5 coil with Cylinder 1.

2

Remove spark plug and inspect.

3

Check compression if ticking sound is heard.

Cost Breakdown

DIY Replacement Parts: $35 – $95
Independent Repair Shop (Parts + Labor): $180 – $380
Standard Diagnostic Time: 1.0 – 2.0 Flat-Rate Hours

Tools & Parts Matrix

Recommended Parts: Ignition coil, Spark plug
Required Test Tools: Socket set, Scan tool

Diagnostic Questions & Answers

Where is Cylinder 5 on a V8?

On Chevy and Ford V8s, Cylinder 5 is the front-most cylinder on the driver side.