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Have 2002 s80 t6 which seem to have uneven braking in front pulls right then left. also steering wheel twitches when brakes release . the vehicle has just passed it yearly inspection with no mention of brake issues
have looked at the brakes and they appear to be OK with no visable problems
any ideas
Warped rotors are usually the problem, but you cannot see? They can be measured for trueness...however with the pulling in different directions, I think your next fix would be to bleed all 4 brake lines...starting at rear farthest from the master cylinder, then other rear, then front farthest from master cylinder...lastly the front closet to the master cylinder...Pressure can feel constant, but pulling is usually caused by air in the lines...this can get worse...may not be an expensive repair if you can bleed the lines with a friend or pedal pusher system...Also check brake fluid level...was it extremely low, and you recently added some?
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All vehicles have a safety feature that won't allow a vehicle to be shifted into gear without the drivers foot being on the brake pedal . Shifter interlock system . There is a electrically controlled solenoid that locks the shifter ,when you step on the brake pedal an electrical signal un locks the shifter ,allowing the gear selector to move.
1. Check to ensure the tyre pressures in both front tires are identical and also that the pressures in both the rear tyres are identical. (You should be running over 32 psi in the tires in that vehicle.) This will not correct the problem but do it anyway .
2. Have the brakes checked on all 4 wheels to ensure there is no binding of the brake pads on brake rotors(discs) when the brake pedal is released. If , for example, the front brake pads on one side are not fully releasing their grip on the brake rotor when you remove your foot from the brake pedal, the car will tend to drift off centre when driving and especially when you lift off the power.
3. There are suspension and steering issues to check but I cannot offer comment without inspecting the car.
Sounds like you have a brake backing plate (or something similar) rubbing the brake rotor, or up against the tire or wheel. I would look at that first. It is very likely not the power steering or the pump or belt. You are saying that the chirp is less when steering to the right. Look at the Right front wheel and wheel bearing.
oil in header tank indicates a blown head gasket this could also explain the hunting.The brakes might just need bleeding,while this is done you can check for fluid leaks.Shakey steering at a certain speed is wheel balancing,this is quite cheap to fix but it must be done at a tyre fitting garage.hope this helps,good luck.
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