Q: I have an oil leak on a2000 s40 it appears to be coming from the solenoid for the can sensor and the valve cover I've replaced th

asked by on

2000 Volvo s40 oil leak in the timing belt area it appears to be coming from valve cover in the corner and the can position sensor solenoid I've changed the gasket on the solenoid no change could it be clogged pcv

Locating oil leaks can be challenging. There are a few common culprits with every car. The general rule is always look up above where you see the oil. In your case, there are at least three distinct places that commonly leak oil. It sounds as though you have replaced the variable valve timing solenoid. A camshaft position sensor is not a solenoid. It’s important to differentiate between a solenoid and a sensor. They are distinctly different devices.

With your car, it could be the valve cover, camshaft seal or camshaft position sensor. Valve covers will leak at corners, seams or when the gaskets get hard. Camshaft seals are rubber just like your valve cover gasket, but are round with the camshaft spinning inside of them. When they get hard, they will begin to leak. They are located under the top timing cover, behind the camshaft gears.

Less likely, but possible. If you don’t see an external leak above, your crankshaft seal could be leaking. Sometimes, when the crank seal leaks, the timing belt can spread the oil leaking from it all over the inside of the timing cover.

As with any oil leak, often times we need to do some disassembly to find the source of our leak. If you should need help locating your oil leak, I recommend the following inspection to be performed by a certified technician from YourMechanic; Oil/Fluid leak inspection.

Good luck!

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I have an oil leak on a2000 s40 it appears to be coming from the solenoid for the can sensor and the valve cover I've replaced th

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

Get a quote

What others are asking

Q: Will it damage my engine if I switch from synthetic blend to regular motor oil to do a oil change being I live in Florida?

It is not snow or ice that will damage an engine but heat and friction. This engine is turbo charged and the turbo bearings are lubricated by the engine oil. When you change the oil you should use only the...

Q: Lost oil until motor siezed

This is a common issue for this generation of Highlander. Toyota released a technical service bulletin (TSB) related to cam housing oil leaks. The associated TSB (T-SB-0321-08) covers the inspection, diagnosis and repair of the cam housing oil leak. However,...

Q: Oil in the water

If you open the oil cap and see a white moisture on the top of it, you may have a head gasket cracked. A block test should be performed to verify a head gasket crack. If you would like to...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...