P0801 Shift/Timing Solenoid Low

How to Fix P0801 Shift/Timing Solenoid Low


If you’re experiencing issues with your car’s transmission, specifically the P0801 Shift/Timing Solenoid Low code, you’re not alone. This code indicates that there is a problem with the shift/timing solenoid, which is responsible for controlling the timing of the transmission’s gear shifts. Fortunately, this is a problem that can be fixed with a little bit of know-how and some basic tools. In this article, we’ll walk you through the steps to fix P0801 Shift/Timing Solenoid Low.

Step 1: Diagnose the Problem

Before you can fix the problem, you need to diagnose it. The P0801 code can be caused by a number of different issues, including a faulty shift/timing solenoid, a damaged wiring harness, or a problem with the transmission control module. To diagnose the problem, you’ll need an OBD-II scanner. Connect the scanner to your car’s OBD-II port and read the code. If the code is P0801, you can be fairly certain that the problem is with the shift/timing solenoid.

Step 2: Gather Your Tools

Once you’ve diagnosed the problem, it’s time to gather your tools. You’ll need a few basic tools, including a socket set, a torque wrench, and a multimeter. You’ll also need a replacement shift/timing solenoid. You can purchase a replacement solenoid from your local auto parts store or online.

Step 3: Remove the Old Solenoid

With your tools in hand, it’s time to get to work. Start by disconnecting the battery to prevent any electrical shocks. Next, locate the shift/timing solenoid. It’s typically located on the side of the transmission. Use your socket set to remove the bolts that hold the solenoid in place. Once the bolts are removed, gently pull the solenoid out of the transmission.

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Step 4: Install the New Solenoid

With the old solenoid removed, it’s time to install the new one. Before you install the new solenoid, make sure that the O-ring is in place. This will help prevent any leaks. Gently insert the new solenoid into the transmission and secure it with the bolts. Use your torque wrench to tighten the bolts to the manufacturer’s specifications.

Step 5: Test the Solenoid

With the new solenoid installed, it’s time to test it. Reconnect the battery and start the engine. Shift through the gears to make sure that the transmission is shifting smoothly. Use your multimeter to test the resistance of the solenoid. The resistance should be within the manufacturer’s specifications. If everything checks out, you’re good to go.


Fixing the P0801 Shift/Timing Solenoid Low code is a relatively simple process that can be done with a few basic tools and some know-how. By following the steps outlined in this article, you can fix the problem and get your car back on the road in no time.


1. Can I drive my car with the P0801 code?

It’s not recommended to drive your car with the P0801 code. This code indicates that there is a problem with the shift/timing solenoid, which can cause damage to your transmission if left unchecked.

2. How much does it cost to fix the P0801 code?

The cost to fix the P0801 code can vary depending on the make and model of your car and the severity of the problem. In general, you can expect to pay anywhere from $200 to $500 for parts and labor.

3. How can I prevent the P0801 code from happening again?

To prevent the P0801 code from happening again, it’s important to keep up with your car’s regular maintenance. This includes changing the transmission fluid and filter at the recommended intervals and addressing any transmission issues as soon as they arise.