AutoCodes – Ford – P1786 Ford

P1786 Ford Code - Transmission System Second or Third Gear Fault

Quick Answer

P1786 Ford indicates Transmission System Second or Third Gear Fault. Common causes include Check for transmission mechanical problem. 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: P1786 Ford indicates Transmission System Second or Third Gear Fault.
Common causes: Common causes include Check for transmission mechanical problem.
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.

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Code Popularity 4,590

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 18, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1786 Ford Description

OBDII Code P1786 Ford - Transmission System Second or Third Gear Fault - AutoCodes.com — P1786 Ford Code - Transmission System Second or Third Gear Fault

What does this mean?

What are the Possible Causes of the DTC P1786 Ford?

Check for transmission mechanical problem

How to Fix the DTC P1786 Ford?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1786 Ford 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.

Need more information about the P1786 Ford code?

Need more information on how to fix the P1786 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1786 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1786 Ford Code

1. What are the common symptoms of OBDII code P1786 in a Ford related to the transmission system?

- Common symptoms include harsh shifting between second and third gears, slipping gears, and the transmission staying in one gear.

2. What are the potential causes of OBDII code P1786 in a Ford's transmission system?

- The code P1786 can be triggered by issues such as a faulty shift solenoid, low transmission fluid level, a malfunctioning transmission control module, or internal transmission problems.

3. How serious is OBDII code P1786 in a Ford's transmission system?

- This code indicates a fault in the second or third gear of the transmission, which can lead to poor driving performance and potential long-term damage if not addressed promptly.

4. Can OBDII code P1786 in a Ford be fixed by resetting the vehicle's computer?

- Resetting the vehicle's computer may temporarily clear the code, but it is important to diagnose and address the underlying issue causing the fault code to prevent further transmission problems.

5. Are there any DIY repair tips for addressing OBDII code P1786 in a Ford?

- DIY repair tips may include checking and topping up transmission fluid levels, inspecting and replacing faulty shift solenoids, and ensuring all electrical connections related to the transmission are secure.

6. How can a mechanic diagnose OBDII code P1786 in a Ford's transmission system?

- A mechanic can use a diagnostic scanner to retrieve the trouble code, conduct a visual inspection of the transmission components, perform a road test to observe the shifting behavior, and conduct further tests as needed.

7. Is it safe to continue driving a Ford with OBDII code P1786 present?

- It is not recommended to drive the vehicle with OBDII code P1786 present, as it can lead to further damage to the transmission and potentially compromise driving safety.

8. How much does it typically cost to repair OBDII code P1786 in a Ford's transmission system?

- The cost of repairing OBDII code P1786 can vary depending on the underlying issue, but it may involve expenses such as parts replacement, labor costs, and diagnostic fees.

9. Can regular maintenance help prevent OBDII code P1786 in a Ford from occurring?

- Regular transmission fluid changes, timely inspections, and addressing any transmission-related issues promptly can help prevent the occurrence of OBDII code P1786 in a Ford.

10. Will OBDII code P1786 cause the Ford vehicle to go into "limp mode"?

- In some cases, OBDII code P1786 can cause the vehicle to go into "limp mode" to prevent further damage, limiting the vehicle's speed and performance until the issue is resolved.