P3939 Renault Auto Trouble Code
P3939 Renault Auto Trouble Code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
The crank but won't start condition, along with the trouble codes may make you think you've got a PATS anti-theft system problem. However, Ford reports that these codes are all related to software bugs. The only way around the problem is to reprogram the PCM with the latest software.
P3939 Renault Possible Solution:
Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.
P3939 Renault Description For All Models :
- Renault 10
- Renault 11
- Renault 12
- Renault 14
- Renault 15
- Renault 16
- Renault 17
- Renault 18
- Renault 19
- Renault 20
- Renault 21
- Renault 25
- Renault 26.8
- Renault 30
- Renault 4
- Renault 40
- Renault 45 Hp
- Renault 5
- Renault 6
- Renault 8
- Renault 9
- Renault Alaskan
- Renault Alpine
- Renault Altica
- Renault Argos
- Renault Avantime
- Renault Be Bop
- Renault Captur
- Renault Captur 2
- Renault Caravelle
- Renault Clio
- Renault Clio 2
- Renault Clio 3
- Renault Clio 4
- Renault Clio 5
- Renault Colorale
- Renault Concorde
- Renault Dauphine
- Renault Eight
- Renault Eighteen
- Renault Ellypse
- Renault Espace
- Renault Espace 3
- Renault Espace 4
- Renault Espace 5
- Renault Espider
- Renault Etoile
- Renault Express
- Renault Fifties
- Renault Floride
- Renault Fluence
- Renault Fregate
- Renault Fuego
- Renault Gabbiano
- Renault Grand Espace
- Renault Grand Scenic
- Renault Helem
- Renault Initiale
- Renault Juva
- Renault Juvaquatre
- Renault Kadjar
- Renault Kangoo
- Renault Kangoo 2
- Renault Koleos
- Renault Kwid
- Renault Laguna
- Renault Laguna 2
- Renault Laguna 3
- Renault Latitude
- Renault Le Car
- Renault Logan
- Renault Ludo
- Renault Manager
- Renault Mascott
- Renault Master 2
- Renault Master 3
- Renault Maxity
- Renault Megan
- Renault Megane
- Renault Megane 2
- Renault Megane 3
- Renault Megane 4
- Renault Modus
- Renault Nepta
- Renault Nerva Grand Sport
- Renault Nervasport
- Renault Optima
- Renault P55
- Renault Primaquatre
- Renault R5
- Renault Racoon
- Renault Re
- Renault Renault
- Renault Rodeo
- Renault Rs
- Renault Safrane
- Renault Sandero
- Renault Scenic
- Renault Scenic 2
- Renault Scenic 3
- Renault Scenic 4
- Renault Siete
- Renault Spider
- Renault Sport Spider
- Renault Super
- Renault Symbol
- Renault Talisman
- Renault Thalia
- Renault Torino
- Renault Torpedo
- Renault Trafic
- Renault Trafic 2
- Renault Trafic 3
- Renault Twingo
- Renault Twingo 2
- Renault Twingo 3
- Renault Txe
- Renault Type A
- Renault Type Xa
- Renault Vel Satis
- Renault Victoria Rothschild
- Renault Wind
- Renault Zo
- Renault Zoe
- Renault Zoom
P3939 Renault Trouble Repair :
The sensors receive a 5 volt reference signal from the PCM. As pressure readings change, the sensor varies the voltage and the computer reads that to determine input. In the case of a broken wire, the sensor never sees the voltage and the computer assumes a major fault. So if you get this P3939 Renault code, first check to make sure you're getting a good 5 volt reference signal at the sensor.
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