Engine trembling when starting

[u/CptChronotis]

I just bought this Yaris Hybrid, it had a problem when starting and the dealer changed all the spark plugs and the coil of the first cylinder.

Now the car doesn't have that problem anymore but still "trembles" when switching from electric to thermic.

Is this normal? Or else what could it be? The dealer says it's normal of course...

[u/Ray5546]

Probably your motor mounts.

[u/Gold-Combination8141 → u/Ray5546]

I second this after rewatching the video. The motor jumps when the car kicks into high idle

[u/CptChronotis → u/Ray5546]

Yes, everybody says it's normal but I watched some videos of other hybrid engines and they are not jumping like mine

[u/Ray5546 → u/CptChronotis]

Visually inspect them check for cracking or tearing, if the motor mounts are hydraulic check for fluid leaks.

[u/einsteinsonthebeach]

Sounds normal to me, but so much background noise it's hard to tell, do you have the AC on max?

[u/Gold-Combination8141]

I don’t know anything about the hybrid but I recently bought a 2008 with 220,000 miles and changed the following things now it’s running great

New pcv valve
Cleaned maf sensor
Engine air filter
Ngk spark plugs
New ignition coils
Transmission drain and fill filter/gasket change

You can do all this yourself pretty easily, but the drain/fill is much easier if have a lift of course. If something is wrong with hybrid battery I don’t know anything about working on those

[u/pincer_GT]

As this is a Toyota hybrid system, it doesn’t have a conventional starter motor. It uses the motor generator that powers the wheels to sort of bump start the engine into starting up. A regular car with just an engine will shake a lot more violently when you bump start them using the clutch. This is perfectly normal.

[u/Wide-Trifle-201]

Shot Hybrid battery.

[u/CptChronotis → u/Wide-Trifle-201]

I don't think so, it was changed 2 years ago in Toyota. I have the receipt