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Gas or heavy exhaust smell in prius cabin while driving. Not…

Customer Question
Gas or heavy exhaust...

Gas or heavy exhaust smell in prius cabin while driving

Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual?

Not seeing a drop in mileage. Starts fine.

Mechanic's Assistant: What year is your Prius?

2007

Mechanic's Assistant: Are you fixing your Prius yourself? What have you tried so far?

Have not tried anything yet. Planning on checking for visible fuel leaks or exhaust problems in the engine compartment.

Submitted: 3 months ago.Category: Toyota
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Answered in 24 minutes by:
11/5/2017
Toyota Mechanic: Mike S., Mechanic replied 3 months ago
Mike S.
Mike S., Mechanic
Category: Toyota
Satisfied Customers: 7,836
Experience: 25+ years experience as an auto mechanic.
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Hi, I am Mike, welcome. I'm reviewing your question.

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Toyota Mechanic: Mike S., Mechanic replied 3 months ago

Yeah, the first thing you want to do is make sure there is not a gas leak. Next stand by the tailpipe while the engine is idling, then put the palm of your hand a few inches away from the end of the exhaust tailpipe and allow the exhaust to blow onto the palm of your hand, and then smell your palm. Does it smell like gas and/or is there any black smoke coming out the tailpipe? Also, look to see if just inside the tailpipe is there is a lot of black soot. A little is normal.

Then put your shoe with your foot in it, over the tailpipe while the engine is idling and try to shut off all the exhaust, then listen for any hissing noises meaning there is a exhaust leak somewhere. If so, find the leak and fix it.

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Toyota Mechanic: Mike S., Mechanic replied 3 months ago

Did that answer your question? If so, kindly leave me a positive rating, so I get credit. After all, you have already made the deposit.
If you don't, the deposit you made will just sit there and I won't get my share of it.

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Customer reply replied 3 months ago
The problem turned out to be a broken oil filler cap. Replaced the cap, topped off the oil, and washed to blown oil off the engine. No more smell.
Toyota Mechanic: Mike S., Mechanic replied 3 months ago

ok

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Experience: 25+ years experience as an auto mechanic.

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