P0307 on Dodge
Cylinder 7 Misfire Detected
P0307 on Dodge vehicles indicates cylinder 7 misfire detected. Au7o has documented this code across 3 Dodge models — most commonly on Challenger, Charger, Durango. P0307 means the engine computer detected a misfire on cylinder number 7 — that cylinder isn't burning its air/fuel mixture completely or at the right moment. The PCM senses this by watching for tiny slowdowns in crankshaft speed each time cylinder 7 should fire. A misfire wastes fuel, can dump raw fuel into the exhaust, and may damage the catalytic converter over time, which is why a persistent or severe misfire often makes the check engine light flash. You may feel rough idle, shaking, hesitation, or a loss of power. Typical repair costs on Dodge range from $100 to $3,000, depending on the specific model and root cause.
Common Causes of P0307
- •Worn, fouled, or incorrectly gapped spark plug on cylinder 7
- •Failed ignition coil or coil-on-plug for cylinder 7
- •Faulty, clogged, or leaking fuel injector
- •Vacuum or intake air leak affecting that cylinder
- •Low compression (worn rings, burnt/leaking valve, head gasket)
- •Damaged spark plug wire or boot (on applicable engines)
- •Carbon buildup or sticking valve
P0307 on Dodge by Model
Dodge Challenger(2 issues)
- HEMI Lifter/MDS Tick2015-2021
HEMI engines with Multi-Displacement System (MDS) can develop a ticking noise from the hydraulic lifters. This is often related to the MDS deactivation system. Some owners disable MDS via tuner to eliminate the issue.
- Pentastar V6 Rocker Arm/Lifter Tick2015-2023
The 3.6L Pentastar V6 engine can develop a ticking noise from worn rocker arms. Unlike the HEMI MDS tick, this is caused by the roller follower rocker arms wearing out prematurely. The issue typically appears between 50,000-100,000 miles and is more common on 2011-2013 engines but can occur on later models.
Dodge Charger(2 issues)
- HEMI MDS Lifter Tick2011-2023
HEMI engines with Multi-Displacement System (MDS) can develop a ticking noise from the MDS lifters. This tick is most noticeable at idle and during light acceleration. While often not causing immediate damage, it can indicate lifter wear that may eventually require attention.
- Pentastar V6 Rocker Arm/Lifter Tick2011-2023
The 3.6L Pentastar V6 can develop a ticking noise often related to the rocker arms or hydraulic lifters. This is common on engines with higher mileage or irregular oil change intervals. Some early Pentastar engines had rocker arm design issues that were later updated.
Dodge Durango(1 issue)
- HEMI MDS Lifter Tick2011-2023
HEMI engines with Multi-Displacement System (MDS) can develop a ticking noise from the MDS lifters. This is most noticeable at idle and during light acceleration. While often not immediately harmful, it can indicate lifter wear.
Looking for P0307 on a different make?
View P0307 across all makes →Frequently Asked Questions
What does P0307 mean on Dodge?▼
P0307 stands for "Cylinder 7 Misfire Detected." P0307 means the engine computer detected a misfire on cylinder number 7 — that cylinder isn't burning its air/fuel mixture completely or at the right moment. The PCM senses this by watching for tiny slowdowns in crankshaft speed each time cylinder 7 should fire. A misfire wastes fuel, can dump raw fuel into the exhaust, and may damage the catalytic converter over time, which is why a persistent or severe misfire often makes the check engine light flash. You may feel rough idle, shaking, hesitation, or a loss of power. On Dodge specifically, this code is documented across 3 models.
What causes P0307 on Dodge vehicles?▼
Common causes on Dodge: Worn, fouled, or incorrectly gapped spark plug on cylinder 7, Failed ignition coil or coil-on-plug for cylinder 7, Faulty, clogged, or leaking fuel injector, Vacuum or intake air leak affecting that cylinder, Low compression (worn rings, burnt/leaking valve, head gasket). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0307 on a Dodge?▼
Repair costs on Dodge range from $100 to $3,000, depending on the specific model and root cause.
Which Dodge models have P0307 documented?▼
Au7o has documented P0307 on 3 Dodge models: Challenger, Charger, Durango.