dodgy vibration

[Dr. Martin Gooter Bling]

my car runs perfect when i jump in to it after it's been parked up. for the first 15 minutes approx it's perfect but develops a bad vibration after it heats up to operating temp. feels like the engine vibrating and the fuel economy has plummeted. car isn't at full power either. there was a quiet period earlier when i was parked up for around 30 mins. the car cooled down considerably. i took off and she was perfect but again after she heated up after around 15 minutes the vibration started again. any ideas. thought it might be worn spark plugs but new ones didn't help. something is heating up and wreckin the buzz.

[Taxi driver42]

Waterproof on the way out? Maybe
What do u drive
Or thermostat sticking

[markmiwurdz]

Engine mounting bolt?

[Rat Catcher]

Plug it in to a proprietary or semi-proprietary diagnostic system. OBD Eleven offers a pretty much proprietary option for VAG group cars and is also approved by Toyota but is probably less developed in that arena.

Something that'd materialise as the engine heats up and goes away when the engine cools points to a temp sensor or something controlled by a temp sensor. Loss of power suggests fuel or air starvation.... on balance without any fault codes I'd be looking at the air intake sensors/ducts/valves.

[Dr. Martin Gooter Bling]

thanks for the suggestions. i noticed a few months back that there's a sh-sh-sh-sh-sh-sh-sh-sh-sh noise coming from under the bonnet that sounds like a dodgy belt. on inspection the engine has no visible belts. the water pump is actually an electrically driven water pump. it has an internal rotor that cracks and fails eventually. i'm certain the noise is coming from the water pump. i bought the part and planned on unbolting the water pump and installing the new rotor and a nice drain and refill of new pink coolant. i got the official instructions and it says step one remove the engine. this must be the instructions for a huge robotic arm in a factory i says. where's the real world instructions i says. turns out the cuntin water pump is indeed tightly sandwiched in there with no way of accessing it easily. i found a guy on youtube who shows how to remove it without removing the engine but it's an ordeal. if i go to the mechanic fella i'm expecting yeah that's an intensive nine hour job. a grand in bunts please. i did'nt think a water pump can cause a nasty vibration but i think it's the culprit now alright.

[Golfer14]

Doc ,for meaning full help. stick up make/ model/year/engine/mileage   . topman

[Dr. Martin Gooter Bling]

2020 toyota corolla hybrid 200,000kms

[Wingnut]

To me it sounds like a blocked egr valve, or possibly a coil pack. My previous car had a similar problem and it was the egr. It involves stripping and cleaning the egr cooler / egr valve connecting pipe and throttle body. Didn't think the new corolla gave the same issues with the second catalytic converter that fed the egr with less emissions. Maybe search corolla / prius gen 4 forums for similar issues.

Sent from my V2454A using Tapatalk

[Taxi driver42]

2020 toyota corolla hybrid 200,000kms

Very surprised a toyota
I got my pruis water pump done 450 euro
Did it in 2 hr I waited
Toyota said remove engine too
But guy off nans rd a wizard with toyota s especially imports
Place full of taxis
Best mechanic I ever had
Just facing AXA repair center in the industrial estate

[silverbullet]

thanks for the suggestions. i noticed a few months back that there's a sh-sh-sh-sh-sh-sh-sh-sh-sh noise coming from under the bonnet that sounds like a dodgy belt. on inspection the engine has no visible belts. the water pump is actually an electrically driven water pump. it has an internal rotor that cracks and fails eventually. i'm certain the noise is coming from the water pump. i bought the part and planned on unbolting the water pump and installing the new rotor and a nice drain and refill of new pink coolant. i got the official instructions and it says step one remove the engine. this must be the instructions for a huge robotic arm in a factory i says. where's the real world instructions i says. turns out the cuntin water pump is indeed tightly sandwiched in there with no way of accessing it easily. i found a guy on youtube who shows how to remove it without removing the engine but it's an ordeal. if i go to the mechanic fella i'm expecting yeah that's an intensive nine hour job. a grand in bunts please. i did'nt think a water pump can cause a nasty vibration but i think it's the culprit now alright.

If it's a hybrid, this guy is on your doorstep.

https://www.davidstokesmotors.ie/

[John m]

How bad is it .From a rattle like keys in your pocket to a Skeleton having a wank in a biscuit tin .

[mercenary for hire]

Intermittent coil pack failure would only show up when the engine gets warm and the pack expand.OBD reader will show the correct code and you can Google it.

200k is about the right time to change them.Hape of shite.

[Dr. Martin Gooter Bling]

i did a major service at 150,000kms. she was in need of love and had a little bit of battle damage that needed repairing.
transmission fluid change, coolant change, spark plugs, ignition coils etc.
car was like a rocket and butter smooth after i remember. it was delightful.
the vibration is only at 2000rpm. you can just about skirt around it while accelorating and driving but something needs sorting.
fairly strong fuel smell coming from exhaust and more smoke than usual. don't know if it's on account of the cold weather.
mechanic is havin a peep next thursday. hopefully there's some fault codes that are presenting themselves.

[mercenary for hire]

You can leave your OBD reader in while driving it and when the vibration happens it should throw up an error code.If it's a mount or something non electrical it won't throw a code.You did say it had a repair.Maybe they missed something.

I don't know who the mechanic is or if it's a dealer but using non original parts on a Toyota can present it's own problems.Yis know this but it's worth saying anyway.

[Rat Catcher]

Maybe best to put a Maguie & Patterson to it before it turns into another Ken/ SB Toyota money pit. EV grants will be out this week or next week.