P0355 1997 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit
Quick Answer
The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0355 1997 Ford F150 indicates Ignition Coil 'E' Primary/Secondary Circuit .
- Common causes
- Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0355 1997 Ford F150 Description
What are the Possible Causes of the DTC P0355 1997 Ford F150?
- Faulty Ignition Coil 5
- Ignition Coil 5 harness is open or shorted
- Ignition Coil 5 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0355 1997 Ford F150?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0355 1997 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0355 1997 Ford F150 Code
1. What does the OBDII code P0355 mean on a 1997 Ford F150?
P0355 indicates a malfunction in the Ignition Coil 'E' Primary/Secondary Circuit, which means the PCM has detected an issue with the ignition coil or its circuit responsible for cylinder 5.
2. What are the symptoms of code P0355 on a 1997 Ford F150?
Common symptoms include engine misfires, rough idling, reduced power, poor fuel economy, and the Check Engine Light being illuminated.
3. What causes the P0355 code to appear?
The most common causes are a faulty ignition coil, damaged wiring or connectors in the coil circuit, a bad spark plug, or a malfunctioning Powertrain Control Module (PCM).
4. How do I diagnose the P0355 code on my 1997 Ford F150?
Check the ignition coil for cylinder 5 for damage, test the wiring and connectors for continuity, inspect the spark plug, and use a multimeter to verify proper voltage to the coil.
5. Can a bad spark plug cause the P0355 code?
Yes, a bad or worn spark plug can cause the ignition coil to malfunction, triggering the P0355 code.
6. How do I fix the P0355 code on a 1997 Ford F150?
Repairs may include replacing the ignition coil for cylinder 5, repairing or replacing damaged wiring or connectors, replacing the spark plug, or—in rare cases—replacing the PCM.
7. Is it safe to drive with the P0355 code?
Driving with this code can lead to engine performance issues and potentially cause further damage to the catalytic converter, so it's best to address it promptly.
8. How much does it cost to fix the P0355 code on a 1997 Ford F150?
Repair costs can range from $50 to $200 for parts like an ignition coil or spark plug, but labor costs will depend on the mechanic's rates and the extent of the issue.
9. Can a P0355 code cause long-term damage if not fixed?
Yes, prolonged driving with a misfire can damage the catalytic converter, lead to poor engine performance, and increase emissions.
10. What tools are needed to troubleshoot the P0355 code?
You’ll need an OBDII scanner, a multimeter, and basic hand tools to inspect and test the ignition coil, wiring, and spark plug.
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