Question about 2004 GMC Envoy

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I have a 2004 envoy the code p0757 circuit b stuck on came up what would i need or do to fix this problem with the trans

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SOURCE: 2004 e500 mercedes trans problem code-2767 need

The code P2767 definition is ,
Transmission input shaft speed sensor?turbine shaft (TSS)sensor B no signal..
Now in English it means the speed sensor is either faulty or bad connection,I would suspect the sensor, but worth getting checked by a transmission specialist,
Darren DCS

Posted on Jul 17, 2009

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Computer code P0042

In my database, that code doesn't compute for your vehicle? With the larger engine, my database says bank 1 and bank 2, sensor 1 and sensor 2. No sensor three. The code does talk about 02 heater circuit, so, I would have to check wiring circuits. Once the problem is fixed, the check engine lite should go out. The code will probably stay in memory for so many engine warm up cycles then it is gone.

My scanner will read and erase codes. You can check some obd2 code readers, see if they will read and erase codes? Some people will take the negative battery cable loose to erase codes. I have to say, I don't like to do that. If the problem isn't fixed, the lite will just come back on, again.

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My 2004 gmc envoy reading said running to lean

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with scanner look read data to see data out of range . code will set only for short to ground or open circuit

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Oct 13, 2014 | 2004 GMC Envoy

1 Answer

Fix p0757 code

take to trans shop to replace shift solenoid in trans pan

May 10, 2014 | GMC Cars & Trucks

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Shift Solenoid B Circuit Stuck On

Hope That Helps

May 20, 2013 | 2003 Chevrolet Impala

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I have a 2004 Envoy slt 4wd auto....The car will shift fine from 1st to 2nd gear but rpms climb and it does't go to 3rd. I tried to maunually shift through gears, but it still doesn't get 3rd?

its most def a purely transmission issue i believe its the solenoids. have it taken to a reputable trans shop near and have them diagnose it with there speciall code reader.

Oct 24, 2012 | 2004 GMC Envoy SLT

1 Answer

How do i fix a po757

Hi there:

DTC P0757 MAZDA - Shift Solenoid B Stuck On

The P0757 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck on.

Shift solenoid valve B is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position. When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Possible causes:

- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid B valve
- Shift solenoid B valve harness or connectors
- Shift solenoid B valve circuit is open or shorted

I suggest ask your dealer about the folow TSB...

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Oil leak

is the a rear main seal leak? if yes then the trans must be removed, if no then the trans doesn't need to be removed.

Mar 23, 2010 | 2004 GMC Envoy

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04 Envoy service engine soon light is on. How do I get a code to identify the problem? The oil has been changed. The trans has been flushed and new filter. the gas cap is tight. The tires are rotated. My...

need to have system checked with a scanner to get trouble code Auto Zone or Advanced Auto parts will do that for free if you have one around you

Feb 12, 2010 | 2004 GMC Envoy

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