P0012 on Jeep
Intake Camshaft Position Timing - Over-Retarded (Bank 1)
P0012 on Jeep vehicles indicates intake camshaft position timing - over-retarded (bank 1). Au7o has documented this code across 2 Jeep models — most commonly on Cherokee, Grand Cherokee. This code means the intake camshaft timing on Bank 1 is more retarded than the computer commanded — the variable valve timing system isn't reaching its target position. The computer controls camshaft timing through an oil-fed actuator (cam phaser) and a control solenoid; when actual timing lags the desired setting, this code sets. It is commonly caused by oil flow problems (low, dirty, or wrong oil), a stuck solenoid, or a worn cam phaser. Symptoms can include rough idle, reduced power, poor fuel economy, and sometimes rattling on startup. Typical repair costs on Jeep range from $800 to $2,500, depending on the specific model and root cause.
Common Causes of P0012
- •Low, dirty, or incorrect-viscosity engine oil
- •Faulty or stuck intake camshaft (VVT) oil control solenoid
- •Worn or stuck camshaft phaser/actuator
- •Clogged solenoid screen or oil passages
- •Wiring or connector problems at the solenoid
- •Timing chain wear or stretch affecting cam timing
- •Faulty camshaft position sensor
P0012 on Jeep by Model
Jeep Cherokee(1 issue)
- Engine Stalling (Multiple Causes)2014-2023
Multiple factors cause sudden engine stalling including low oil levels (2.4L), VVT issues, faulty sensors, fuel system problems, and transmission-related stalling (2019 9-speed). Stalling typically emerges after ~1,000 miles.
Jeep Grand Cherokee(1 issue)
- Water Pump Failure (3.6L Pentastar)2011-2021
The water pump on the 3.6L Pentastar V6 can fail, causing coolant leaks and overheating. The pump is internal and driven by the timing chain, making replacement labor-intensive. Failure often occurs between 80,000-120,000 miles.
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View P0012 across all makes →Frequently Asked Questions
What does P0012 mean on Jeep?▼
P0012 stands for "Intake Camshaft Position Timing - Over-Retarded (Bank 1)." This code means the intake camshaft timing on Bank 1 is more retarded than the computer commanded — the variable valve timing system isn't reaching its target position. The computer controls camshaft timing through an oil-fed actuator (cam phaser) and a control solenoid; when actual timing lags the desired setting, this code sets. It is commonly caused by oil flow problems (low, dirty, or wrong oil), a stuck solenoid, or a worn cam phaser. Symptoms can include rough idle, reduced power, poor fuel economy, and sometimes rattling on startup. On Jeep specifically, this code is documented across 2 models.
What causes P0012 on Jeep vehicles?▼
Common causes on Jeep: Low, dirty, or incorrect-viscosity engine oil, Faulty or stuck intake camshaft (VVT) oil control solenoid, Worn or stuck camshaft phaser/actuator, Clogged solenoid screen or oil passages, Wiring or connector problems at the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0012 on a Jeep?▼
Repair costs on Jeep range from $800 to $2,500, depending on the specific model and root cause.
Which Jeep models have P0012 documented?▼
Au7o has documented P0012 on 2 Jeep models: Cherokee, Grand Cherokee.