2009 Toyota Yaris
Burning smell

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YarisGirl
Driver
12 points

Problem added: Aug 24, 2019 (1 year ago)
Had my car serviced a few weeks ago. Same day after service i drove my car on a dual carriage way for a couple miles. After coming off dual carriage way i got stuck in traffic and my car started to make like a blowing noise as if the engine was over heating. First time for my car to do this and ive owned the car for 3yrs. Then yesterday after coming off a dual carriage way i could smell a burning smell from the engine. Then today when i was back on the dual carriage way and hitting about 70mph my steering felt light. And same again car smelt like it was burning. Checked under bonet no smoke or couldnt see any leaking. But there is a dark black ring around end of exhaust. No burning smell if i avoid dual carriage way and stick to 30mph.

Car details
Car: Toyota Yaris
Model Year: 2009
Category: Engine & Drivetrain
Steering, Suspension, Brakes, Wheels & Tyres
Leaks & Noises
Replies and Fixes
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whittingehame
Legend
15,380 points

Aug 25, 2019 (1 year ago)
Sounds like what is happening is your DPF is regenerating which is perfectly normal .
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YarisGirl
Driver
12 points

Aug 25, 2019 (1 year ago)
I dont know what a DPF is.
I dont think its normal for my car to be smelling of smoke after driving fast for a few miles.
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whittingehame
Legend
15,380 points

Aug 25, 2019 (1 year ago)
Active regeneration
Many cars don't get the right sort of use for passive regeneration to work so car manufacturers build in ‘active’ regeneration where the engine control software senses that the filter’s getting blocked and injects extra fuel into the engine to raise the exhaust temperature and trigger regeneration.

Active regeneration will be initiated every 300 miles or so depending on how you use your car and will take 5 to 10 minutes to complete. But it’s a problem if your journey’s too short and the regeneration doesn’t finish.

During active regeneration you may notice:

Cooling fans running
Faster engine idle speed
Automatic Stop/Start doesn’t work
Increased fuel consumption
A hot, acrid smell from the exhaust.
The engine sounds different
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YarisGirl
Driver
12 points

Aug 27, 2019 (1 year ago)
Thanks for replying.
I think the smells coming from the engine not the exhaust. I googled dpf and i dont have a diesel car.
Ive notice the burning smell also starts if im driving up hill
Avatar
whittingehame
Legend
15,380 points

Aug 27, 2019 (1 year ago)
You didn't say what engine in original post . From the further info it could be your clutch slipping or the engine cooling fan not coming on . If clutch slipping , engine revs up with a power loss . Check coolant level also .
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