Question about 2010 Fiat 500 1.2

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Fiat 500 brake lights on permanently - loss of engine power

All 3 brake lights are on perm. Slight movement (drop) on pedal. Foot UNDER pedal to support will turn lights off but hard to drive! Engine now also loses power until this lift of brake pedal routine...

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  • Master
  • 528 Answers

Does it pull to one side or the other when rolling? If so, then you may have a stuck caliper. If not, then you likely have a bad master cylinder and need to replace. If it is a stuck caliper, it would be wisest to replace BOTH calipers. If the brake pedal feels hard when you push, that would be another indicator the master cylinder is bad - but you may not have the hardness in the pedal. If pulling up on the pedal relieves the problem, I would suspect the master cylinder first. Driving on it could damage many components, and replacing them all may be expensive - I recommend verifying the master cylinder is bad and replacement before driving!!

Posted on Mar 28, 2014

Testimonial: "Good points. The car is straight when rolling and when under braking. Equally no harshness or jerky braking. I will check out the master cyclinder. Thanks."

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Posted on Jan 02, 2017

ginko
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SOURCE: 2006 fiat grande punto road/suspension & brake noise

If two different mechanics, including a fiat dealer, already put their hands on your car, there is not much that I can say.
This kind of noise are often caused by bad rotor discs or locking up brake pads, I assume that this had been previously checked and fixed .
about the steering rack problem, when the steering rack has troubles the noise is from the steering rack itself and from the front of the car, if you are sure the noise is from wheel check brakes, or, if the noise does not cohincide with braking, check the wheel bearings.
See here on common brake noises, cause and identifying them.
about "fiat would not allow any more work on this problem", that sounds a bit like rubbish, call Fiat in your country (put Fiat in google, then find support/ contact), and ask them about their policies. I do not think from description this has got to do with steering, unless you get the noise only when steering, nyou usually get also vibrations on steering wheel in this case.


If this had been useful do not forget to rate the solution appropriately.

Many thanks

Posted on Sep 11, 2008

  • 4 Answers

SOURCE: Fiat Stilo intermittant loss of power

How old is the car? Have you tryed fuel injection cleaner? Is it well you speeding up?

Posted on May 13, 2009

  • 64 Answers

SOURCE: Fiat Uno Pacer - Brake Booster not assist braking

it could be that the master cylinder is bad or the brake booster is bad also check the vacum hose going to the brake booster if it has a hole in it it will lose pressure and make the engine lose rpms

Posted on Aug 23, 2009

  • 1 Answer

SOURCE: Brake Pedal creeps down when held under pressure

bleed all ure brakes

Posted on Jan 11, 2010

alicantecoli
  • 22095 Answers

SOURCE: Fiat 500 yellow engine check light continuous on -

something is wrong with the engine ,could be anything from a vacumn pipe off to the vapour control for the fuel tank ,ask a local mechanic to have a look for you is the best advice i can give as too many variables

Posted on Dec 21, 2010

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2009 Dodge Caliber - The ABS & Brake Light came on as well as the feeling/sensation of the brake being applied very hard for a split second.


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I suspect that the brake booster is becoming defective and the small application to the pedal causes excessive booster reaction
the abs section only maintains applied brake fluid pressure as set by the position of the pedal
that is to maintain the pressure as the stopping and start movement of a skidding wheel opens and closes a valve to that wheel /s
if you are on ice that sudden hard braking will cause the wheels to lock and immediately the abs cuts in to allow the wheels to turn and then to allow brake action to be reapplied
if the abs is working under brakes you will get a pulsating feeling under your foot as the fluid pressure is alternation between full on and released by the abs valves

Apr 01, 2017 | 2009 Dodge Caliber 2.0

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1997 Toyota Camry, when coming to a stop i feel a slight movement in the brake pedal at the end, i have had the brakes checked and was told that the pads rotors, and calipers are fine, also the ABS light...


There is a possibility that the rotors are warped and need either turned or need new ones. If ABS is acting up it could effect the pedal movement too but usually more drastic movement. Only other way to know is have a good mechanic run the scanner checking brakes on the run.

Jul 10, 2010 | 1997 Toyota Camry

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Been having problem with brakes. I brake pad feels


Bleeding isnt going to help a hard pedal. If the pedal is mushy, and there is no air, the Master cylinder could be bad. If the pedal is HARD, there is no air. Press on the brake pedal several times with the engine off (5-6 times) now hold your foot on the pedal and start the engine, you should feel the pedal slightly give way under your foot. If you dont, and have a HARD pedal, the brake booster could be bad, but have professionals check it out before spending any money.

May 13, 2010 | 1993 Chrysler Town & Country

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Would a failing vacuum booster effect the brake lights?...It seems when the pressure builds back up they work. When it drops they go on for a second then go out.... ALSO would a failing booster cause a...


The booster uses vacumn to assist your foot pressure. A leaky seal or diaphragm in the booster or a bad hose from the engine to the booster will cause the pedal to drop as it loses power assist. I think the brake light switch is mounted under the dash by the brake pedal. Fix the booster now, it may save your life.

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