Question about 1991 Subaru Legacy

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Doorlocks have to replace electronic fluctuators in doors {as per recom from servo at a cost of $900.00 } , but dont have that kind of funds , how difficult are they to install

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You need plastic tool to pop inner covers from doors and screwdriver for door handle screws and screws holding actuator. Usually less than $20 each as parts. Your english is not so good, I don't know just what "recom from servo" would mean, but I assume you mean someone told you it would cost $590 to replace them. They don't usually go bad at all, and when they do they die one at a time. It seems more likely that what has failed is the fuse for the circuit. The fuse box is near where the driver's left foot goes.

Posted on Mar 21, 2009


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Doorlock diagram on 1997 ford thunderbird

Firstly, check whether it's physical or electronic, that way you know where you're starting from. You may need to remove the back panel of the door. (Make a note of how it came off!) You may now be able to follow the linkage from the door catch all the way back to the operating handle. The car's old, so it won't be operating on a wireless protocol, you're just looking for wires or a series of little rods. Is everything an uninterrupted run from handle to catch? If not then just reattach as best you can and test it. If it's wires that have come disconnected and reconnecting them doesn't work then the fault's more fundamental and you may need a specialist. If it's physical links which are the problem then you should be able to sort out if anything is bust. Getting a replacement could be tricky with a car as old as this. Consider going to a specialist or if you're very enthusiastic AND skilful consider making the replacements yourself.
Finally don't forget to put the back panel onto the door.

May 06, 2015 | 1997 Ford Thunderbird LX

1 Answer

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

Hv/a/control on console only comes out center dash

that is called the MODE damper
its like a door inside the heater box.
there are 3 kinds, (cable. /vacuum and motor controlled)
in a shop we find out
1: which kind then test the control to make sure the control works.
2: then make sure the mode damper works (it wont)
3: we then look and see this car has a motor and the motor is dead
3: we replace the motor and the mode damper now works.

the FSM shows the tests here, under HVAC, you can read that
any time, or login to and read that.

if cable , you just watch the cable move. it either does or dont at each end (if fail its obvious why, right>?) jammed or broken cable.

if vacuum, you watch the servo move. if it dont , its bad or the control bad. or the damper is jammmed, i release the link and operate
the door, by hand, it works and i find the servo diaphram leaks
doing a vacuum leak down test, bingo bad servo.

or if electric motor dampers. i do the FSM tests,. no 2 cars
motors work the same, so i'm compelled to RTM read the words
and graphics in the FSM, it shows how to hot wire it and test
ALL angles. if fail the motor is DOA. get a new motor at any toy dealer.
there i have covered all cars made , all 3 systems.
ask questions.

Jan 31, 2014 | 1998 Toyota Camry

1 Answer

While I'm driving, the car locks and unlocks at random. what's the problem?

there is a possible 2x ratio solution, have the doorlocks checked for a open circuit, ( break in the wiring) or check the contact points on the doors, open all doors and with a scrw driver lock each door individually and check whick door lock causes the doors to unlock again, that doorlock will then be the root cause problem.

solution 2 , the doorlock switch could be faulty

Dec 20, 2012 | 2001 Nissan Altima

1 Answer

Drives side door wont open on fob on golf mk4

the doorlocks run through the power window module inside drivers door could be u r doorlock moter is simply disconnected electrically has to b disconnected to replace the window regulator hope it helps danny

Oct 18, 2012 | 2001 Volkswagen Golf

1 Answer


Cold weather affects it because the resistance in the doorlock-motor windings increases to the point not enough voltage gets through to be able to open the latch! Replacing the doorlock is the only sure fix in this case as they're not serviceable!

Oct 08, 2010 | 1991 BMW 8 Series

1 Answer

Ford edge doors locked with dead battery

You can try the Police who have a Slim-Jim and once in a while they will help on this. Your Ignition key should unlock the door.

Most Autoclubs or Car Insurances have a Locksmith benefit. Locksmiths have Master keys.

Dealers can look up your Vin#. It should be on your Insurance form or on the ID plate below the Drivers windshield. They can cut a new key. If you have a key for the Ignition, you only need a Tumbler key for the doorlock. Electronic keys can cost $100+ a Tumbler key only $10.

Jun 14, 2010 | 2007 Ford Edge SEL Plus

1 Answer

2002 econoline ac front heat rear is problem. Plenty of ac in the front but heat blowing from bottom vents in passenger rear of van.

Heat and a/c is controlled by a vacuum servo on the rear heater box. if vacuum is lost then the servo defaults to heat. I recomment removing the rear left quarter trim to access the vacuum servo(servo cylindrical and a little smaller than 1/2 soup can, it has a flat metal rod sticking out). Use a vacuum pump to test the servo and see if it moves and holds vacuum. If it doesn't work them replace it. If it does work then test to see if there is vacuum at the hose that attaches to the servo (with engine running try test in both a/c and heat modes) it should have vacuum in a/c mode. If no vacuum is present then you will have to trace the vacuum line back to the heater contol head looking for splits or cracks. At the heat control head you can test to see if vacuum comes from the control head or not. I suggested starting in the rear because servo failure is rather common since it is only used seasonally.
I hope this helped. This is all based on a ford factory system. Your vehicle description says "cutaway" so if it has the ford rear system this will work. If it is not a ford system then I would need more info as to what kind of system it is.

Apr 04, 2010 | 2002 Ford Econoline Cutaway

1 Answer

18k on my 03 Santa Fe should be ok with no timing belt change per expert media and repair shop mechanics(Massachusetts),but dealer says otherwise(my Truck manual is no help),should say to dis-spell all...

Timing belts are made of rubber(they dry rot) Most manufactures recommed replace all belts at 50K or 5years. Yours is 6 years old.Not a bad idea to replace if you are going to keep your car for some time.Broken T/belts result in bent vales 80% of the time resulting in very costly repairs.

Jun 16, 2009 | 2003 Hyundai Santa Fe

1 Answer

1999 gmc jimmy. The heater control is stuck on HOT.

if the knob wont move replace it junk yard may have used part but if it moves and hot air keeps blowing out u may need a servo that opens and closes heater box door under dash i dont think that trucks system works off vacuum but if it does it probably electronic related problem inquire junk/salvage yard about knob and servo for heater box door and problem it may be common and u may get info if he,s a nice guy

Mar 28, 2009 | 1999 GMC Jimmy

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