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White smoke coming from tail pipe exhaust?

Tiny
DREW CARBAJAL
  • MEMBER
  • 2002 NISSAN ALTIMA
  • 2.5L
  • 2WD
  • AUTOMATIC
  • 210,000 MILES
I rolled over a high-speed bump in a hotel parking lot and now there's white smoke coming from my tail pipe. I hit it kind of hard. When I run the A/C it tends to smoke the most and I'm not sure why.
Friday, September 16th, 2022 AT 11:15 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like you blew a head gasket which can happen when the engine is jarred, or it was just a coincidence. To be sure let's go over this guide to confirm the failure. If it does have a blown gasket the cylinder head will need to be removed and the gasket replaced, but I have seen people use blue devil which works in some cases.

Here is a video to show you how to use it as well:

https://youtu.be/Xi41RFMP8Ow

and

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

Please go over these guides and report back.
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Saturday, September 17th, 2022 AT 10:39 AM

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