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Reparer servo frein - 2003 Chevrolet Avalanche

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What and where is the servos


  • A servo is a mechanism, usually a motor of some sort, that drives another mechanism. On a passenger aeroplane, for example, the control surfaces are too difficult for the pilot to operate because there is so much wind pressure against them, so they use hydraulic servos to move the elevator, flaps etc.
  • On a car, the drive by wire throttle control is a servo, which is electronically controlled by the computer, depending on the throttle position under the driver's foot.
  • In effect, the power steering ram on a car is also a servo, which is powered by the p/s pump, and controlled by the valves in the steering column.
  • On a smaller scale, the air conditioner has servos that open and close the relevant air duct flaps when the dashboard controls are shifted to control the flow of air in the car. Please note that on older cars, and some new ones, these flaps are not controlled by servos but by cables.
  • The remote controlled central locking on a car has servos in the doors that open and close the door locks when the remote button is pressed. On some cars these door lock servos are small electric motors, on others they use vacuum operated pistons, also called servos.
  • Hope this answers your question!

Feb 16, 2015 | 1999 GMC Jimmy

1 Answer

[FREIN A MAIN PORTES ] code on the odometer meens.


I looked it up on google translater and Frein A Main Portes is in French
In English it means A Hand brake Doors

Feb 05, 2012 | 2007 Isuzu i-290 Extended Cab

1 Answer

Mon tableau indique huiles a frein bas tout a ete changer cette semaine et le mesage est rester ainsi que le *** bip tout les 1 klm que doige fair svp


Table I shows a brake down while oil has been changed this week and stay mesage is *** and the beep every 1 klm only fair Doige please This is what the translator came up with

Sep 02, 2011 | 2004 Chrysler Pacifica

1 Answer

BOITE VITESSE BARRE APPUIS SUR FREIN ET NE PEUT ENGAGER LES VITESSE


i do not understand what you are asking but give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your van wish you the best of luck Michigan Man.

Mar 08, 2010 | 1998 Ford Windstar

1 Answer

Je veux enlev? le tambour de roue arriere pour v?rifer les freins


Salut,
Je suis francophone mais resident en Nouvelle Zélande. Quand tu enleves les roues, je suis sur que le tambour est complet avec le moyeu. Donc il te faudra enlever l'écrou central du roulement pour enlever les tambours.
Amitiés.

Apr 19, 2009 | 2000 Ford Focus

1 Answer

Overdrive lockup


On the passenger side of the trans there are two servos.A servo is a steel piston with rubber lip seals bonded to the steel.The servo piston strokes in or out,applying or releasing a band.There are two servos,each hidden behind circular aluminum covers held into the case with snap rings.The rear servo actuates the 2nd gear band,and the front servo actuates the 4th gear,or O.D. band.The rubber lip seals on the servo pistons are soft and pliable when new,but with hot and cold cycles,and years of use,the rubber hardens and doesnt seal very well,causing loss of gears.It is very possible the servo has hardened,and that's why you are losing 4th.The other possible cause is electronic.This trans,the A4LD has 2 electrical solenoids inside the trans,4th gear solenoid and lockup solenoid.These are the ONLY electronics inside the trans,another possible problem area.I would remove the servos first for inspection,but before removal,take a scribe and scratch into the aluminum covers,"F" on the front one,and "R" on the rear one.These servos are different diameters,and MUST go back where they came out of.On the servo covers you will see cast into the covers 2 letters identifying the servo it requires....AB.....BB.....ZC...etc.These are examples,and yours will likely be AB and BB.If you DIY....use plenty of vaseline on the rubber lip seals,and the servo bores, to prevent cutting the new servo seals and O rings.Good luck.

Sep 09, 2008 | 1994 Ford Explorer Limited

1 Answer

AC temperature


Servo motor? I disagree. Actually, there are 3 servo motors in the vehicle; an air inlet servo, an air mix servo, and an air outlet servo. None of which control the temperature.
The AC temp is controlled by a thermister in the cooler box/eveporator unit under the dash.

Jul 10, 2008 | 2001 Toyota Tacoma

1 Answer

Brake light


monsieur landry quand tu change de park aux drive ta lumiere de frein allume confirme moi sa et tu peut verifier tes fuses de montreal pierre

Jun 19, 2008 | 2006 Chevrolet Malibu Maxx

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