After oil change there is a lot smoke coming from exhaust and trouble accelerating

Tiny
PHU NGUYEN
  • MEMBER
  • 2005 TOYOTA LANDCRUISER
  • 25,000 MILES
Hello, I completed my first oil change on my car about three weeks ago. At first my car seemed to be driving normally. However, recently, when I turned on my car, a lot of smoke came out the back exhaust pipe. Then, when I tried to drive on the highway, my car had trouble accelerating even when I was stepping on the gas hard. It took about ten seconds for the car to go up to 30 mph. I took it to the shop, but I was just wondering if these symptoms sound like the result of changing the oil incorrectly? Thanks !
Wednesday, July 10th, 2019 AT 11:53 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

Since it didn't happen right away, I don't suspect the oil was overfilled. However, it's possible. Also, can you tell me what color the smoke was? For example, was it blue, black/gray, or white? Were there any strange odors from it? Were there any sounds such as ticking or knocking from the engine?

The color of the smoke can tell us a lot. For example, if the oil was blue in color, that is an indication of motor oil being burned.

Black/gray smoke oftentimes indicates a rich fuel mixture.

White smoke usually indicates that coolant is getting into the combustion chamber due to a faulty head gasket.

Since there are different possibilities, the first thing I would recommend checking is the oil level and condition. Make sure it isn't overfilled and is clean.

Next, confirm the coolant level isn't getting low, which could indicate a head gasket issue.

Last, here is a link that explains how to check for a bad head gasket. Take a look through it and inspect the items indicated.

https://www.2carpros.com/articles/head-gasket-blown-test

If there were any odd sounds such as ticking or knocking from the engine, review this link to gain a better understanding of possible causes:

https://www.2carpros.com/articles/engine-noises

If you look at the picture below, it shows the oil type and capacity required for this vehicle.

I hope this helps. Let me know if you have other questions.

Take care,

Joe

See pic below.
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Wednesday, January 5th, 2022 AT 8:47 PM

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