Skip the auto shop - Our mechanics make house calls

Q: Blue smoke coming from exhaust

asked by on

When car is under hard acceleration blue smoke is coming from exhaust

My car has a manual transmission.

A: Hi there, thanks for writing in about your ...

Hi there, thanks for writing in about your 1985 Ford Escort. You may have bad oil control rings or valve seals on the intake valves leaking. Try to make sure the PCV system is serviced and is clean to not cause excessive crankcase pressure. If the system is okay, then one of the other engine problems may be present. If you want to have this looked at, a local expert from YourMechanic can come to the site of your car to have the smoke problem correctly diagnosed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Cylinder 7 misfire in Ford F-150

A misfire code is a very common fault on your 2002 Ford F-150. The first step is to determine what the root cause is, from there it can be determined what needs to be replaced. Common causes are the spark...

Q: Wrong fuel into the engine, car cannot start

A few different things can happen when the wrong fuel is used in a vehicle. This vehicle should not be driven or attempted to start until repairs have been made. The gas will have to be removed from the gas...

Q: Need to reattach the rear muffler

You can visit a local mechanic or take it to a local exhaust shop - whatever is best for you. If a bolt broke then it may be as simple as putting in another bolt, but I do not think...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...