Get the mounting screws started and tighten them snugly it doesn't require too much torque. While inserting the new solenoid, it helps to twist slightly back and forth while pushing down to get it flush with the mounting surface. There is slight resistance when installed but that indicates the seals are properly snug. Take the new solenoid and insert it into the mounting surface hole. The spool is the part you are inserting into the port. Apply the lithium grease to the seals on the solenoid spool. If you see anything abnormal inside the mounting surface hole, remove it carefully with a long curved pick or a long pair of needle nose pliers. Look down the solenoid valve mounting surface and look into the hole to make there aren’t any pieces of o-ring or screen. There are times where a piece of o-ring or screen may be damaged or missing. After removing the variable valve timing solenoid, take a good look at it to make sure it is in one piece. It may take a little working at it to get it removed but it should pop right out. Twist the solenoid side to side and lift while twisting side to side. This would be any metal part of the solenoid you can reach. The variable valve timing solenoid may be stuck, so start by taking a pair of channel locks and gripping the strongest point of the solenoid. Be very careful not to pull on the wire only pull on the connector itself. Most connectors are removed by applying pressure to the tab to release the lock on the connector itself. Start by removing the mounting bolts and be careful not to drop them in any crevices or openings in the engine compartment.
There are, in most cases, one mounting bolt, but some may have two.īe sure to pay attention to the mounting flange on the solenoid to verify. If there is anything in the way such as vacuum lines or wiring harnesses secure them out of the way using a bungee.Īvoid disconnecting or pulling to prevent any damage or confusion. In the image above, you can see the connector, the solenoid’s silver body and the mounting bolt. The connector is the exposed end of the variable valve timing solenoid. Try looking at the new solenoid to match the shape and help you find it. The variable valve timing solenoid is located at the front of the engine, typically near the front of the valve cover. Step 3: Locating the variable valve timing solenoid. Set the cables aside or tie down with a bungee cord to prevent them from making contact. Loosen the positive and negative battery terminals, and twist and pull on the terminals to remove. The most common size battery terminal nuts are 8mm, 10mm, and 13mm. Some are attached by nuts or bolts and others are installed by snapping into place. If there is an engine cover, it needs to be removed.Įngine covers are a cosmetic feature manufactures install. Variable valve timing solenoid/solenoids.Part 1 of 1: Replacing the variable valve timing solenoid When it comes time to have your variable valve timing solenoid or solenoids replaced, your vehicle may have symptoms such as an illuminated Check Engine Light, loss of power, bad fuel economy, and a rough idle.
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For example, if you're running down flat road the variable valve solenoid will “retard” timing which will decrease power and increase efficiency (fuel economy), and if you have a car full of company and are driving uphill, the variable valve timing will “advance” timing which will increase power to overcome the load it is taking. The Variable Valve Timing (VVT) Solenoid has been engineered to adjust the valve timing automatically in the engine depending on how the engine is running and the load the engine is under.
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