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Front end shakes after warm up

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
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Mthafukngreen
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Joined: Sun Feb 16, 2020 8:53 pm
Year and Model: 01 s80
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Front end shakes after warm up

Post by Mthafukngreen »

First off, my control arms are bad and I'm sure that's playing a big factor. Secondly, my brakes are kinda sticky, that may be another factor.

Anyone got any ideas as to why the shaking only happens after the car reaches operating temperature?
It starts out subtle but the longer I drive after it's warmed up the shaking gets worse and worse. If I park for a 10 minutes or so, I can drive shake-free for about 5 minutes. If I let the car cool down completely, I'm back at square one.

Help lol
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RickHaleParker
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Re: Front end shakes after warm up

Post by RickHaleParker »

Mthafukngreen wrote: Thu Feb 20, 2020 3:05 am Secondly, my brakes are kinda sticky, that may be another factor.
Heat

Brakes are energy converters, they convert Kinetic energy into Thermal energy then dump the Thermal energy into their environment. Brake shoes expand when they heat up and would stick even more.
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Mthafukngreen
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Year and Model: 01 s80
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Re: Front end shakes after warm up

Post by Mthafukngreen »

Ok thank you. You confirmed my suspicions.
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Re: Front end shakes after warm up

Post by Cees Klumper »

your brake hoses could be swelled up from the inside due to age (and perhaps bad or old fluid, I am not sure about that one). As you drive and use the brakes, the pads get applied to the discs ok, but because the hoses are constricted, aren't able to retract. If this is your problem, you would have extremely hot brake discs and noticeable drag when up to temperature.
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ndphotonl
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Re: Front end shakes after warm up

Post by ndphotonl »

Be very cautious with dragging brakes, the rotor will become very hot
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lasseamager
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Re: Front end shakes after warm up

Post by lasseamager »

front disc are ....not straight but. yeah you know, and if the brake caliper is bad , it gets MUCH worse when it gets warmed up. replace em SOON, and check the piston and so in your brake caliper ! ....something you should do emiedietly
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