Q: Q: Valve cover leaking on to exhaust manifold gasket can that make it blow white smoke and make CEL flash

asked by on

My vehicle started blowing white smoke out of the exhaust pipe as I inspected the motor I found my valve cover is leaking a lot of oil onto my exhaust manifold gasket can the oil that's leaking onto that enter my exhaust thro the gasket and make it Blow white smoke and make my check engine light flash. The smoke has no sweet smell there's no oil in my radiator fluid I'm not losing radiator fluid only thing I'm losing is oil and the car seems to run normally but will die and not start for a few min. But after a few minutes the car will start up just fine. When the CEL flashed I parked car an have not run it. Need help thank you for your time.

My car has 180000 miles.
My car has a manual transmission.

Hi Donald. Thanks for contacting us today. Although oil leaking on an exhaust manifold can create smoke, it typically does not enter the pipe and blow out the rear exhaust pipe. So, it’s not really likely that the valve cover leak is causing all the smoke. In most cases, while smoke is an indication of either excessive wear on piston rings, valve guides or that there is coolant inside the oil galley. This could be caused by a damaged head gasket, which can replicate oil leaking from a valve cover. You might want to have a professional mechanic complete an onsite inspection to determine what repairs are needed.

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. Q: Valve cover leaking on to exhaust manifold gasket can that make it blow white smoke and make CEL flash

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: What tires should I get for a 2006 Mazda tribute?

Tires are a very subjective topic. It is very important to start your research for tires with asking yourself a few pertinent questions. How many miles will the tires need to last? What is an acceptable price? What kind of...

Q: Is bank2 sensor 1 upstream or downstream?

Hi there. When an oxygen sensor is referred to as upstream, it means it's located prior to the catalytic converter. On a 2006 Honda Accord V6, the Bank 2 Sensor 1 o2 sensor is located on the exhaust manifold; making...

Q: Vehicle shudders when starting and stopping. Runs fine at cruising speed

You may have a problem with the transmission's lower gears. There may be a shifting issue causing it to slip in lower gears. Problems like these can be hard to pinpoint if not seen in person. Have a certified mechanic,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...