How to Fix P0804 Shift/Timing Solenoid Intermittent

Introduction

If you’re experiencing issues with your car’s transmission, specifically the P0804 Shift/Timing Solenoid Intermittent code, you’re not alone. This code indicates that there is a problem with the solenoid responsible for controlling the timing of the transmission’s shifting. Fortunately, this is a problem that can be fixed with a little bit of know-how and some elbow grease. In this article, we’ll walk you through the steps to fix this issue and get your car back on the road.

Step 1: Diagnose the Problem

Before you can fix the issue, you need to diagnose it. The P0804 code can be caused by a number of different things, including a faulty solenoid, a wiring issue, or a problem with the transmission control module. To diagnose the issue, you’ll need an OBD-II scanner. This tool will allow you to read the code and determine the root cause of the problem.

Step 2: Replace the Solenoid

If the issue is with the solenoid, you’ll need to replace it. The solenoid is located inside the transmission, so this is not a job for the faint of heart. You’ll need to remove the transmission pan and filter to access the solenoid. Once you’ve located the solenoid, remove it and replace it with a new one. Be sure to use the correct solenoid for your make and model of car.

Step 3: Check the Wiring

If the solenoid is not the issue, the problem may be with the wiring. Check the wiring harness for any signs of damage or wear. If you find any issues, repair or replace the wiring as needed.

Step 4: Check the Transmission Control Module

If the solenoid and wiring are both in good condition, the problem may be with the transmission control module. This is a more complex issue that may require professional help. The transmission control module is responsible for controlling the shifting of the transmission, so if it is malfunctioning, it can cause a number of issues. If you suspect that the transmission control module is the issue, take your car to a trusted mechanic for further diagnosis and repair.

Conclusion

Fixing the P0804 Shift/Timing Solenoid Intermittent code can be a daunting task, but with the right tools and knowledge, it is possible to do it yourself. Remember to diagnose the issue before attempting any repairs, and always use the correct parts for your make and model of car. If you’re not comfortable with any of the steps involved in fixing this issue, don’t hesitate to seek professional help.

FAQs

1. Can I drive my car with the P0804 code?

It is not recommended to drive your car with the P0804 code. This code indicates that there is a problem with the transmission, and driving with a faulty transmission can cause further damage to your car.

2. How much does it cost to fix the P0804 code?

The cost to fix the P0804 code can vary depending on the root cause of the issue. If the issue is with the solenoid, the cost can range from $150 to $400. If the issue is with the wiring or transmission control module, the cost can be significantly higher.

3. How can I prevent the P0804 code from happening again?

To prevent the P0804 code from happening again, it’s important to keep up with regular maintenance on your car’s transmission. This includes changing the transmission fluid and filter at the recommended intervals, and addressing any issues as soon as they arise.