C3667 Engine Trouble Code
What is C3667?
With C3667, you may drive for several weeks with a malfunctioning MAF sensor, but expect decreased fuel economy and eventual stalling. Shop replacement costs $240–$400 depending on vehicle. The labour is straightforward, with most cost from the part itself.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Code: | C3667 |
C3667 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
C3667 Code Structure
Understanding what each digit means in the C3667 chassis trouble code:
| C | 3 | 6 | 6 | 7 |
|---|---|---|---|---|
| Chassis Code | Ignition System Or Misfire | Fuel Temperature Sensor B Circuit Range/Performance | Cylinder 4 Contribution/Balance Fault | Shift/Timing Solenoid Malfunction |
How to Fix C3667
Diagnostic Steps:
Poor running symptoms align with MAP sensor malfunction. In some cases, a faulty MAP sensor will not trigger a code. The issue may represent separate wiring concerns requiring individual diagnosis.
Repair Solution:
Most manufacturers number cylinders sequentially from front to back. Ford V-engines start with cylinder 1 at front left. In V-6 engines, cylinder 4 is front right; in V-8 engines, cylinder 5 occupies that position.
Technical Notes:
For C3667, verify VCT solenoid operation. Look for stuck or sticking valves caused by contamination. Consult vehicle-specific repair manual for proper component testing procedures.
C3667 Description
C3667 engine trouble code is related to Shift/Timing Solenoid Malfunction.
Main Cause
The primary reason for C3667 OBD-II Engine Trouble Code is: Fuel Temperature Sensor B Circuit Range/Performance.