Login Register

Front end shakes after warm up

Post Reply
Mthafukngreen
Posts: 2
Joined: 16 Feb 2020, 20:53
Year and Model: 01 s80
Location: California

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

User avatar
RickHaleParker  
Posts: 7206
Joined: 25 May 2015, 14:30
Year and Model: See Signature below.
Location: Kansas
Has thanked: 8 times
Been thanked: 980 times

Post by RickHaleParker »

Mthafukngreen wrote: 20 Feb 2020, 03:05 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.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )

Mthafukngreen
Posts: 2
Joined: 16 Feb 2020, 20:53
Year and Model: 01 s80
Location: California

Post by Mthafukngreen »

Ok thank you. You confirmed my suspicions.

Cees Klumper
Posts: 366
Joined: 28 Dec 2013, 13:24
Year and Model: 2002 S80 T6
Location: De Luz Heights, Southern California
Has thanked: 46 times
Been thanked: 33 times

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.

User avatar
ndphotonl
Posts: 250
Joined: 27 May 2018, 07:09
Year and Model: 2001 S80 2.4T
Location: Netherlands
Has thanked: 27 times
Been thanked: 33 times
Contact:

Post by ndphotonl »

Be very cautious with dragging brakes, the rotor will become very hot
Volvo S80 2.4T Wasa Limited Edition (+-230-240BHP)
FlickR images

lasseamager
Posts: 13
Joined: 11 Mar 2020, 13:48
Year and Model: volvo 2002 s80 t6
Location: Danmark
Been thanked: 1 time

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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post