Question about 2003 Chevrolet Impala

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I have debris on the vehicle sensor, does this indicate trouble with transmission?

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Generally speaking no it doesn't indicate a problem, parts wear and that leaves stuff floating around, that is why all automatics have a magnet in the pan, clean it off and reinstall.

Posted on Jun 03, 2009

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Posted on Jan 02, 2017

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2010 Malibu error codes po700,po716,po717


DTC P0700: Transmission Control Module (TCM) Requested MIL Illumination

Which one of these transmissions does your Malibu have ?
Automatic Transmission - 4T45-E
Automatic Transmission - 6T40/6T45
Automatic Transmission - 6T70/6T75

Do you know how to find out look at the VIN # ?
DTC P0716: Input Speed Sensor Performance
DTC P0717: Input Speed Sensor Circuit Low Voltage
The automatic transmission input speed sensor (ISS) is a permanent magnet with a coil of wire wound around. The ISS mounts in the case cover facing the reluctor wheel of the input shaft. As the reluctor wheel is driven by the turbine shaft, an AC signal is induced in the input speed sensor. Higher vehicle speeds induce a higher frequency and voltage at the sensor. There is a fixed air gap between the sensor and the teeth on the sensor reluctor wheel. The ISS input is used by the transmission control module (TCM) in order to control line pressure, torque converter clutch (TCC) apply and release, and transmission shift patterns. This sensor is also used to calculate the appropriate gear ratios and TCC slippage. This diagnostic indicates stuck, erratic, or intermittent conditions in the system.
Diagnostic Aids
• Road test the vehicle while monitoring the Transmission ISS parameter on the scan tool. The Transmission ISS parameter should vary with engine speed changes and not abruptly drop out.
• Inspect for an open or shorted AT ISS wire.
• Inspect for a disconnected AT ISS connector.
• Inspect for a faulty AT ISS.

Trouble Code P0717 Input speed sensor

Jan 19, 2017 | Cars & Trucks

1 Answer

Service stabilitrack on my chevy cruze what does it mean


didnt specify year --generic answer--if under warranty bring to dealer if not the computer registered a problem with a driveability problem or a sensor and or nothing [sometimes shows up and goes off as quick] have vehicle scanned for a trouble code --the stilitrak is tied into your engine and transmission and can put you into limp mode check hubs,abs,speed sensors throttle body wiring and connections for damage or debris
Electronic stability control Chevy Traverse Stabilitrak Traction Control problems

Nov 10, 2016 | Cars & Trucks

1 Answer

Can I drive my 2011 gmc terrain with the stabili-trak not on?


yes it can be driven have vehicle scanned for any trouble codes --be cautioned --stabili-trak is tied into abs and speed sensors and the transmission-engine -and can go into limp mode -this problem sometimes has been known to show up and clear itself ---check your hubs- abs wiring and sensors -speed sensors --check that debris didnt damage or disconnect any wires or connections also traverse would kick up stabilitrak problem with a fuel management problem
Electronic stability control Chevy Traverse Stabilitrak Traction Control problems

Nov 10, 2016 | GMC Cars & Trucks

1 Answer

My '93 suzuki sidekick automatic transmission 4 wheel drive after warm up "overdrive off" starts flashing on and off and when on the drivetrain stops working


The O/D light's flashing means there is some kind of transmission trouble.

The codes are..


Trouble Code (1) Probable Cause
12 ............................... System Operation Normal
21 ..................... No. 1 Shift Solenoid Open Circuit
22 .................... No. 1 Shift Solenoid Short Circuit
23 ..................... No. 2 Shift Solenoid Open Circuit
24 .................... No. 2 Shift Solenoid Short Circuit
25 ............................. TCC Solenoid Open Circuit
26 ............................ TCC Solenoid Short Circuit
31 ............ Vehicle Speed Sensor Open Or Short Circuit
32 ................ Throttle Position Sensor Short Circuit
33 ................. Throttle Position Sensor Open Circuit
34 ................ Defective Park/Neutral Position Switch
36 .............. (2) No Signal-Both Vehicle Speed Sensors
(1) - Check listed component for probable cause. Also check wiring and connections of specified component.
(2) - No signal from both transmission and speedometer mounted vehicle speed sensors.

If a trouble code is present, OD OFF light will flash a trouble code. The number of flashes will equal first digit of trouble code. After a one second pause, second digit will be displayed. If more than one trouble code is present, next trouble code will be displayed after a 3 second pause. Smallest number trouble code will be displayed first. Trouble codes will be repeated.

Hope this gave you some insight on the issue.

Mar 08, 2011 | 1993 Suzuki Sidekick

1 Answer

Speedometer is reading incorrectly. need to replace the speed sensor on the transmission or some where else.


Yes, I would start at the speed sensor on the transmission called the VSS (Vehicle Speed Sensor).

Also, are the tires the right size for the vehicle as indicated by the placard on the inside of the door?

The following is the example for some GMC Envoys (I had to guess on the engine size):

Vehicle Speed Sensor Removal & Installation To Remove:
  1. Disconnect the vehicle speed sensor connector. Vehicle speed sensor (A), Retaining bolt (B), O-ring (C) vsssensor.gif

  2. Detach the vehicle speed sensor from the transfer case.
  3. Remove the o-ring from the vehicle speed sensor.
To Install:
  1. Apply transmission fluid to the o-ring.
  2. Install the o-ring onto the vehicle speed sensor.
  3. Attach the vehicle speed sensor to the transfer case. Torque the bolt to 97 in-lb (11 Nm).
  4. Connect the vehicle speed sensor connector.
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Oct 08, 2010 | 2004 GMC Envoy

1 Answer

Speedometer went crazy, Engine signal, kick after full brake stop


he told you to take it to a transmission specialist because that is where those sensors are located. The speed sensor is located in the transmission. It reads the speed by counting the number of teeth on a relucter wheel. (thats the simple explanation).
I sounds to me like there might be some debri in the transmission that could be affecting the reading.
The engine computer uses that information to control the engine and transmission. Without that information the transmission could go into limp home mode and or have erratic shiffting plus other problems.
I would really suggest you get it in for a test and evaluation asap. I do not consider this vehicle to be reliable or safe because the transmission could lockup and or otherwise fail.
As a side note, these minivans are notorious for having failing transmissions and most transmission shops find that the majority of their work is on this minivans. One of the reasons I have just kept my full size van.

Apr 16, 2010 | 2001 Dodge Caravan

1 Answer

Trouble with the transmission solenoid 2000 dodge caravan. Automatic transmission. The check engine light code read Transmission shift solenoid. I need suggestions on how to fix this myself


USUALLY A SHIFT SOLENOID DTC IS REPAIRED BY REPLACING THE TRANS SOLENOID PACK ASSEMBLY..LOCATED ON OUTSIDE OF TRANSMISSION..YOU MUST BE CAREFUL WHEN CHANGING PACK..CLEAN ALL DIRT/DEBRIS FROM OUTSIDE OF PACK..YOU DON'T WANT ANY DIRT TO ENTER TRANSMISSION..SOLENOID IS A SMALL BOX LOCATED ON SIDE OF TRANS FACING FRONT OF VEHICLE..YOU MUST REMOVE TRANS COOLER LINE HOSES FROM FITTINGS ON TRANS..REMOVE INPUT SPEED SENSOR..UNPLUG PACK..8MM SCREW HOLDS IT..3 BOLTS HOLD PACK TO TRANS..YOU MUST CLEAN ALL GASKET RESIDUE THOROUGHLY BEFORE INSTALLING PACK..I'D RECOMMEND GETTING SOMEONE WHO HAS DONE THIS BEFORE IF YOU ARE NOT COMFORTABLE DOING THIS..I HOPE THIS HELPS

Dec 30, 2009 | 2000 Dodge Caravan

1 Answer

My ford windstar mpv 1994, the overdrive light is continously blinking. The vehicle moves sluggishly. When OBD2 coder reads:1) P0500 and 2)P0760.


P0500 is the trouble code for a problem wiht the vehicle speed sensor. This is a little unit that is on the transmission.
P0760 is the trouble code for transmission shift solenoid problem, This solenoid is IN the transmission.
Take the van to a transmission specialty shop or a repair facility you trust. Speed sensor can be replaced by the user if they are familiar but the shift solenoid should be done by a professional.

Oct 16, 2009 | 1995 Ford Windstar

3 Answers

1999 ford expedition - transmission slip?


the flashing O/D light usually means you have a bad speed sensor that sends speed info to the engine & trans computer.

Vehicle Speed Sensor The vehicle speed sensor (VSS) (Figure 42) is a variable reluctance or Hall-effect sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling.
-------------------------------------------------------------------
Vehicle Speed Sensor The vehicle speed sensor (VSS) (Figure 42) is a variable reluctance or Hall-effect sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling.

-------------------------------------------
Some trans use an OSS, Output Shaft Sensor instead of a VSS. Depends on which trans you have, 4R100 or 4R70W

Transmission Control Switch (TCS) and Transmission Control Indicator Lamp (TCIL)
The transmission control switch (TCS) is a momentary contact switch. When the switch is pressed, a signal is sent to the powertrain control module (PCM) to allow automatic shifts from first through fourth gears or first through third gears only. The PCM energizes the transmission control indicator lamp (TCIL) when the switch is off.

The TCIL indicates overdrive cancel mode activated (lamp on) and electronic pressure control (EPC) circuit shorted (lamp flashing) or monitored sensor failure.

Output Shaft Speed (OSS) Sensor
The output shaft speed (OSS) sensor is a magnetic pickup, located at the output shaft ring gear, that sends a signal to the powertrain control module (PCM) to indicate transmission output shaft speed. The OSS is used for torque converter clutch control, shift scheduling and to determine electronic pressure control.

Apr 18, 2009 | 1998 Ford Expedition

3 Answers

Flashing shift indicator light


A flashing D4 light means a transmission error code is stored in the cars computer.

Is could be something as simply as a cable adjustment.

Without knowing the actual trouble code, it's hard to tell.

Jun 24, 2008 | 1992 Honda Accord

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