Chrysler Dual Cowl C1396 Engine Trouble Code
What is Chrysler Dual Cowl C1396?
Chrysler Dual Cowl C1396 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
C1396 on the Chrysler Dual Cowl
Owners of the Chrysler Dual Cowl should be aware that C1396 can appear alongside oil consumption warnings. Low oil pressure caused by a worn PCV system lets crankcase vapour contaminate the mass air flow sensor, sending erroneous readings to the ECU.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Vehicle: | Chrysler Dual Cowl |
| Brand: | Chrysler |
| Model: | Dual Cowl |
| Code: | C1396 |
C1396 Chrysler Dual Cowl Symptoms
Check Engine Light
Illuminated Chrysler Dual Cowl dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Chrysler Dual Cowl
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Chrysler Dual Cowl
Increased Emissions
Failed emissions test due to C1396
C1396 Code Structure
Understanding what each digit means in the C1396 chassis trouble code:
| C | 1 | 3 | 9 | 6 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent | Crankshaft Position Sensor A Circuit Malfunction | Ignition Coil A Primary/Secondary Circuit Malfunction |
How to Fix Chrysler Dual Cowl C1396
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
Crankshaft position sensor signals the computer for precise ignition and fuel injection timing. Faulty sensors cause rough running and reduced efficiency. Modern vehicles enter limp mode and illuminate the check-engine light.
Technical Notes:
Parts or components should not be replaced based solely on C1396 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
Chrysler Dual Cowl C1396 Repair Cost
PCV system overhaul on the Chrysler Dual Cowl — which resolves oil-mist contamination of the MAF sensor — costs $100–$200. The MAF sensor should be cleaned ($15–$25 DIY) or replaced ($80–$150) at the same time to ensure accurate fuelling after the fix.
C1396 Description
C1396 engine trouble code is related to Ignition Coil A Primary/Secondary Circuit Malfunction.
Main Cause
The primary reason for C1396 OBD-II Engine Trouble Code is: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.
Common C1396 Misdiagnosis on the Chrysler Dual Cowl
On Chrysler Dual Cowl vehicles, the turbo boost solenoid and the MAP sensor feed into the same diagnostic path. C1396 caused by a faulty boost solenoid is sometimes charged to the customer as a MAP sensor replacement, doubling unnecessary parts spend.
DIY Repair Guide: C1396 on Chrysler Dual Cowl
When attempting DIY diagnosis of C1396 on your Chrysler Dual Cowl, a smoke machine test is the gold standard for finding vacuum leaks. Rental tools are available from most auto parts stores for $0–$20/day, or you can fabricate a makeshift tester using a hand vacuum pump and soapy water spray.
Preventing C1396 on the Chrysler Dual Cowl
For turbocharged Chrysler Dual Cowl models, allowing the engine to idle for 60–90 seconds before shutdown after hard driving reduces turbocharger heat soak and prevents the coking of oil that blocks VVT galleries — a known secondary trigger of C1396.
Frequently Asked Questions — Chrysler Dual Cowl C1396
A: If your Chrysler Dual Cowl is within the factory powertrain warranty period (typically 3–5 years or 60,000–100,000 miles depending on region and generation), C1396 repairs caused by component defects should be covered. Bring your service history to the dealer appointment.