5.3 Smokes on Startup - What Could Be Wrong?

Ugh, that sounds expensive! What if my car just has a bad cold start injector?

You might be right, but don’t jump to conclusions. A bad cold start injector usually doesn’t cause smoke; it’s more typical with oil or coolant issues.

True. But then again, every car’s quirks can be different. Gotta love how unique they are!

Remember, a good visual inspection can save you from expensive repairs later on. So don’t skip that step!

That’s true! I guess a funny moment would be finding out it was just a plastic bag over the exhaust?

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I recently dealt with this issue! It turned out to be oil leaking onto the exhaust manifold. A quick gasket replacement solved it. Just make sure to check the oil levels regularly.

Thanks for sharing! I had a similar issue where smoke was just from excess fuel. After cleaning the injectors, it helped immensely.

Smoke could be from a few things: oil leaks, coolant leaks, or even a problem with the PCV valve. Make sure to check all those areas!

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Very true! I had coolant leaking on startup, and it took forever to find out it was a cracked hose.

My car smokes on startup but it seemed to go away after a few minutes, which made me think it might just be moisture burning off. Anyone else experience this?

That’s a possibility! I had that too, but it turned out to be worn piston rings in my case. Please have it checked if it persists.

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If you want a quick fix, sometimes a simple oil change can help. I did it once and was surprised at how much it improved the situation!

I second that! I thought mine was a bigger problem, but the oil change got rid of the smoke completely.

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I had a friend who joked that his car just wanted some attention! Sometimes just revving it a bit after startup can help with the smoke.

Haha, that’s funny! But seriously, if only it was that easy. Better safe than sorry; a mechanic should check it out if it persists.

Thanks everyone! I feel more informed already. I think I will start with a thorough inspection of the gaskets and hoses as suggested.