Q: Oil leak bottom blowby - 1994 Plymouth Acclaim

asked by on

I just put a new engine from the junkyard into my car. I drove it about 2500 miles but it started to burn oil around 2 weeks ago. It went through the oil slowly and blew gray smoke during long idles. The PCV valve is good and the valve stem seals. I think it might be the piston rings. I don’t want to fix it though and will put up with some blowby. I’ll keep driving it for a while. But 3 weeks later I had a sudden oil leak. My car went through about a quart every 30 miles. The oil was all over the bottom of the block, so I can’t tell where the leak is. The leaking oil is only as high as the valve cover on the firewall head and up to the head on the front side. Could the oil be leaking from the head gaskets on this engine model or would the galleys intersect with the coolant galleys and mix? I have no oil in my antifreeze or vice versa. Could it be the valve covers? Do you think both valve covers are leaking at the same time? What do you think?

Hey there. You may have a problem with the head has too much sludge in the head and clogged the oil return passages in the top of the heads. The clogged passages would account for the oil burning if the valve covers are getting full of oil and drowning the valves out and it will get oil in the cylinders. Remove valve covers and clear out the oil drain back passages. If you would like to have this checked, a qualified professional YourMechanic can come to your home or office to inspect the oil leak and have this issue addressed.

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. Oil leak bottom blowby - 1994 Plymouth Acclaim

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: Check engine light spontaneously comes on

Hi there, thanks for writing in about your 2003 Geo Tracker. There are numerous potential causes for the problem you are having. It could be anything from a bad spark plug to a failed sensor. The only way to know...

Q: Oil pressure light comes on when stopped

Hi Matt. Thanks for contacting us today. I would agree with your assessment of a faulty oil pump or even a faulty sensor. The damaged main bearing would likely cause consistent oil pressure issues, so I think you can rule...

Q: Problem with not dying

Hello there, thank you for asking about your 1994 GMC Jimmy. The engine would need to be checked for a stuck open EGR valve or a major vacuum leak. The most common cause is the EGR stuck open with carbon...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...