Skip the auto shop - Our mechanics make house calls

Q: Noticed a small oil leak and intermittent coolant leak

asked by on

Had a recon engine fitted in January 2016. Noticed a small oil leak and an intermittent coolant leak on road. Also blue smoke on a cold start only. The van runs and drives fine.

Hello. The blue smoke on startup is likely worn valve stems or valve stem seals, which leak a tiny amount of oil overnight, but burns it off quickly. Nothing to worry about unless it gets worse quickly, or smokes all the time (piston rings). To determine the source of the oil and coolant leak, I would recommend having an oil & fluid leak inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem and follow through with repairs.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Loud rattling from rear

The information provided leads me to believe that the rattling noise you are experiencing in your Chevy Impala is the rear stabilizer end links failing. It can be difficult to identify a noise problem without physically driving and inspecting your...

Q: How do I install the spare tire?

Drive your car long enough and you’ll experience it – having a flat tire. It’s no fun at all, but the spare tire will let you get back on the road (and to get your flat repaired or replaced). Of...

Q: Clutch won't work and the clutch pedal has no pressure.

Hi there. Check the slave cylinder and see if its moving. There could be a leak on the slave cylinder causing the slave cylinder not to operate. Also, check the pin to the clutch pedal and make sure that it...

Related articles

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...
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...