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TRANSMISSION PRESSURE CONTROL SOLENOID

... What is a Pressure Control Solenoid?
... What Exactly Does a Pressure control Solenoid do?
... Symptoms of a Failed Pressure Control Solenoid
... Pressure Control Solenoid Replacement and Cost
... Save Money on Your Purchase of a Pressure Control Solenoid 

We'll cover all these topics and more below.

Transmission Pressure Control Solenoid: DESCRIPTION
The transmission pressure control solenoid controls the fluid pressure to the internal friction plate clutches or drum bands.  A bad or failing transmission pressure control solenoid can cause slipping, which can result in the transmission overheating.  If left unrepaired, the slipping will ruin (burn or fry) the friction clutches and bands causing transmission failure.

Symptoms of a Faulty Transmission Pressure Control Solenoid
A problem with the transmission pressure control solenoid can cause the check engine light to illuminate with little to no other symptoms.  On the other hand, it can cause transmission slipping in one or all gears.  The failure of this solenoid can also cause the transmission not to shift to the next gear or any gear, which means the vehicle will not move when the transmission is put into gear.

Transmission Pressure Control Solenoid: REPAIR INFORMATION
When the diagnoses is a failed transmission pressure control solenoid, the solenoid must be replaced.  Replacing a transmission pressure conrol solenoid can be done by most any auto repair shop, automobile dealership service center or you can do-it-yourself "DIY".

My Automatic TransmissionTransmission Pressure Control Solenoid: REPLACEMENT COST
The cost to replace a failed transmission pressure control solenoid varies by vehicle make, model and year.  The other factors that influence cost include; who does the work, e.g. auto repair shop, car dealership or you do-it-yourself.  If you do-it-yourself, where you purchase the replacement solenoid will also influence the cost.

Below are transmission pressure control solenoid replacement costs for four different vehicles.  Use this information to give you a rough idea of what your cost might be.

 Transmission Pressure Control Solenoid (PCS) Replacement Cost
 
  VEHICLE: 2004 TOYOTA SIENNA
REPAIR: Replace failed PCS
REPAIR SHOP COST: $260
TOYOTA DEALERSHIP COST: $335
DIY COST: $40 to $65
DIY SAVINGS: $195 to $295
 
  VEHICLE: 2000 FORD FOCUS
REPAIR: Replace failed PCS
REPAIR SHOP COST: $220
FORD DEALERSHIP COST: $300
DIY COST: $35 to $95
DIY SAVINGS: $125 to $265 
 

  VEHICLE: 2008 BMW 330i
REPAIR: Replace failed PCS
REPAIR SHOP COST: $435
BMW DEALERSHIP COST: $550
DIY COST: $75 to $135
DIY SAVINGS: $300 to $475 
 
  VEHICLE: 2003 CHEVROLET SUBURBAN
REPAIR: Replace failed PCS
REPAIR SHOP COST: $175
CHEVROLET DEALERSHIP COST: $220
DIY COST: $20 to $40
DIY SAVINGS: $135 to $180  
 
 
DIY costs assume transmission fluid is reused. Replacing the fluid with new ATF increases the cost.  ATF costs between $5 and $10 per quart. You will need between 3 and 5 quart
 

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IMPORTANT NOTES:  

Diagnosing a failed transmission pressure control solenoid with Check Engine Light
A failed transmission solenoid will normally set a diagnostic trouble code (DTC), which will cause the check engine light to illuminate.  In these instances, an OBD-II scan of your vehicle's computer will provide information pointing to the faulty solenoid.  The DTC information (or explanation) will almost always include a statement indicating that the problem may be an open circuit in the transmission electrical system.  Therefore, you should always test the solenoid to verify its condition before replacing it.

Diagnosing any Transmission Problem with NO Check Engine Light
A correct diagnoses of a transmission problem when there is no check engine light is best accomplished with a professional transmission scan.  This type of scan will necessitate a visit to a transmission shop or car dealership.  A professional transmission scan can cost between $60 and $125.  This charge is normally referred to as a diagnostics fee.  It is standard procedure for the shop making the repair to waive the diagnostics fee.

Transmission Limp Mode
Also called "Fail-Safe" is a the transmission's way of safeguarding itself against internal damage when a solenoid fails or there is an open circuit anywhere in the electrical system.  In limp mode, the transmission will have limited functionality and only use one gear, normally 2nd. or 3rd. gear.  When the transmission is in limp mode, the vehicle should only be driven home or to the repair shop.  Maximum speed while in limp mode is around 30 mph.

Continuing to drive the vehicle with the transmission in limp mode driving faster than the recommended limp mode speed will cause the transmission to overheat.  Excessive heat build up in an automatic transmission is the #1 cause of catastrophic failure.  So, avoid extended driving when the transmission is in fail safe mode.

Transmission Tip A transmission that goes into limp mode will sometimes reset itself when the engine is shut off and restarted.  So, if you find yourself in this predicament, find a safe place to pull off the road and shut the engine off, wait a minute or so and then restart it. 
 

   
Next...  Transmission Torque Converter Clutch Solenoid  
Transmission Shift Solenoids  
 
 
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