Q: Getting code P0446
I bought an old F150. I have an engine fault code (P0446) that requires investigation (maybe contacts issue or valve fault). Also, there is a little oil leaking from the rear axle differential housing.
Recommended Services
| Evaporation Vent Solenoid Replacement | $127.55 - $417.61 | Get a Quote |
The code P0446 is most likely due to an inoperative evaporative vent solenoid that will need replacement. The rear axle leak will need to be inspected to see where the leak is for a repair needed. If the rear cover is leaking, then the rear cover can be removed and re-sealed. If you need help with this, a certified mechanic from YourMechanic come to your home or office to repair or replace your evaporative vent solenoid for you so that you get back on the road worry-free.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
What does the Low Temperature indicator mean on the dash?
While you’re probably familiar with the High Temperature light on the dash, you may not know what the Low Temperature indicator means when it comes on. This light simply tells you that the coolant temperature is low, or cooler than...
Is it possible to remove Bracket bolts without removing caliper pins?
The complete bracket and caliper can be removed this way. I have seen this many times where the caliper retainer slide bolt seizes. The reason is no one lubed the slides and pins when they did the brakes in the...
Dying when idling too long and whining noise while revving
Hey there. In many cases, whistling or whining noises can come from the belt drive system or a vacuum leak under the hood. Is your vehicle maintenance and tune-up schedule up to date? You may want to check the idle...
My car starts and then dies several times before it will stay running, but only when it's cold
Hi there. One of the most overlooked issues that can cause hard starting when it's cold is a malfunctioning engine coolant temperature sensor (https://www.yourmechanic.com/services/coolant-temperature-switch-sensor-replacement). If the coolant level is low, the coolant temperature sensor can send false information to the...
Car makes a long thumping noise and skids once the brake is applied
Hello. Does the noise and slipping seem like it is coming from all wheels? It is likely that the brake pads have been installed improperly on all or some of the wheels. The pads can be in crooked, or faulty....
car is chugging and white smoke comes out the engine.
Hi there; What you're describing appears to be caused by a blown head gasket. In most instances, white smoke coming from the exhaust is caused by coolant inside the oil galleys, which typically occurs after an overheating issue or major...
How to clean the air intake system..
If the intake system (throttle body and intake manifold) are that clogged up, the safest route may be to remove them completely for a thorough cleaning. Cleaning it while still attached to the engine creates the risk of even the...
Diagnostic test reveals PO346 Camshaft position sensor
P0346 refers to the cam position sensor circuit-performance. That means the ECU is not seeing a sensor signal. This is most likely a bad sensor, or the electrical connection or wiring between the ECU and the sensor. The codes that...
There was too much oil put in my car it got drove about mile maybe before sucked back out it is smoking a lot how long will it con
The 2012 is sensitive about how much oil is in the engine. If it has been overfilled, you probably have oil in the exhaust system and the crankcase vent system. The first thing you need to do is make sure...
Related articles
Top 10 PZEV Cars for Eco-Friendly Drivers
Teddy Leung / Shutterstock.com The whole idea of a PZEV (that is, a partial zero-emissions vehicle), seems paradoxical. You’d think it’d have to either be zero-emissions or not in the category at all. But as contradictory as...
The Top 5 Selling Cars in Arizona in 2012
Depending Depending on where you live in Arizona, the weather is either arid or there may be periods of heavy snow – such as in the mountain areas. The vehicles that have been popular in previous years for the area,...
How to Quickly and Accurately Find the Source of an Oil Leak
When it comes down to car fluid leaks, oil leaks are among the most common. Degreaser and U/V leak detector kits can help you find the source.
Browse other content
Estimates
Maintenance