Question about 2005 GMC Envoy

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Where is the cooling fan speed sensor located in a gmc envoy 05

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Posted on Jan 02, 2017

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SOURCE: Fuse Box Location 2006 GMC Envoy

Under the rear seat, drivers side.
Black box you will need to remove the cover.
Lone99star
Please rate this solution.

Posted on Feb 10, 2009

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  • 1 Answer

SOURCE: where is the fuel filter on '05 gmc envoy i-6

the fuel filter on a 2005 envoy is under the truck on the drivers side in the middle you have to take off the protector plate to see it you vant miss it
good luck

Posted on Mar 31, 2009

  • 4 Answers

SOURCE: Removing rear air suspension on GMC Envoy

Just behind right rear tire up in the wheel well. Air inlet is inside right rear quarter near the accessory inflator. Compressor runs 3 lines one for the accessory inflator and one for each air bag.
THere are also 2 sensors, one on each trailing arm that senses load and then raises and lowers accordingly.

Posted on Feb 17, 2010

  • 91 Answers

SOURCE: Location of coolant temperature sensor on 2003 GMC

on the left front of the block by the alt. 4.2 L engine

Posted on Feb 24, 2010

  • 2 Answers

SOURCE: check engine light....coolant temperature sensor

take altanator off and it is located right behind

Posted on May 25, 2010

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1 Answer

Fan speed sensor circuit


What fan ? radiator cooling fans or heater fan ? An there is no speed sensor for either , relays or resistor

Sep 04, 2015 | 2005 GMC Envoy

1 Answer

05 envoy wont shift to 3rd gear speedo quit working abs light and brake light on too help


have code retrieve it is normal for transmission won't shift if there is no speed to pcm
ABS light on there is no speed for him too and brake light
look for wire at transmission for speed sensor or why no speed sensor not working

Oct 15, 2013 | 2005 GMC Envoy

1 Answer

What you mine p1481


The engine cooling fan is electronically controlled as far as the speed goes, the sensor that reads the speed is defective, replace the fan clutch.

Sep 06, 2012 | 2002 GMC Envoy

1 Answer

P1481


Code P1481 - Cooling Fan Speed Sensor Circuit

Several owners repair this sensor and connections, but the problem come on again; I suggest replace the sensor; this is built into the fan clutch.

Hope helps.

Aug 18, 2010 | 2003 GMC Envoy

1 Answer

2006 GMC Envoy I6 HVAC fan stopped working. Level 5 stopped about 6-months ago and now it doesn't work at all. I checked all fuses and the cooling fan relay but still not working.


If high speed went out first, then it is the switch.
There is the most arcing in the switch at high speed.
If there was motor or relay trouble, it would effect all speeds.
If there were problems with the ballast resistor, it would effect lower speeds.

Aug 07, 2010 | 2006 GMC Envoy

1 Answer

Service engine light is on and code P0526


The Powertrain Control Module (PCM) uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed. The PCM uses the cooling fan speed signal in order to reduce the cooling fan noise and in order to maintain the powertrain cooling requirements. The PCM supplies power and ground to the clutch hall effect sensor of the cooling fan clutch. The hall effect sensor returns a signal pulse through the speed signal circuit in response to the reluctor track, which is located inside the fan clutch. If during operation, the PCM detects a loss of the cooling fan speed signal, DTC P0526 will set
  • An inline connector could cause an intermittent DTC. Ensure to test for poor connections and pin retention at all inline connectors. Refer to system schematics for connectors and locations.
  • If the condition is not present, refer to Testing for Intermittent and Poor Connections.
  • Disconnect the harness connector of the cooling fan clutch from the shroud. Inspect the exposed wires between the harness connector and the tubing.
  • Inspect the cooling fan clutch harness in order to ensure that the clutch supply voltage circuit is not shorted to the following circuits:
  • The 5-volt reference circuit.
  • The cooling fan speed signal circuit.
  • The low reference circuit.
  • DTC P0526 will set if the engine is started without the drive belt ON.

Mar 05, 2010 | 2004 GMC Envoy

1 Answer

2003 Trailblazer loses power, I am getting codes P1271 and P1271p/d


#PIT3138A: 02-05 Chevrolet, Buick, Oldsmobile and GMC Mid-Sized Utilities Reduced Power Light On and DTC P1680 P1221 and/or P1271 Stored in the PCM - kw fan clutch SES light power MIL 4.2 LL8 - (Nov 1, 2004) 
The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI.
Condition/Concern:
Reduced power light on and DTC P1680 P1221 and/or P1271 stored in the PCM 
Recommendation/Instructions:
Monitor the 5V reference to the Accelerator Pedal Position ( APP ) sensor, circuit 1274, using Peak Min/Max on a Fluke 87. Refer to Si document 1454678 for the 5V reference schematics. Command the fan clutch control "on" with the Tech 2 at 50%. If when commanding the fan clutch on, the 5V reverence spikes to battery voltage, the concern is the 5V reference shorted to battery voltage intermittently inside cooling fan clutch. Replace the fan clutch to repair this concern. 

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.
Models:
(02 - 05 Chevrolet Trailblazer and Trailblazer EXT) and (02 - 05 GMC Envoy, Envoy XL and Envoy XUV ) and (02 - 05 Buick Rainier) and (02 - 04 Oldsmobile Bravada) 

Jul 16, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

2004 GMC Envoy with a P0526 sensor problem


This code indicates a problem with the fan clutch, the speed it is running is not the speed it was commanded to run/ The fan clutch assembly needs replacing.

Jun 03, 2009 | 2004 GMC Envoy

1 Answer

Cooling fan


hello , tthe fan has a sensor on it it may need changeing out to fix this problem or possible your truck is low on coolant ?

Feb 14, 2009 | 2002 GMC Envoy

1 Answer

Engine revs realy loud


You have a faulty thermostatically controlled fan clutch. Same thing happened to mine. As soon as you start the car, the fan is always turning, and the speed increases as the RPM is increased.

Oct 19, 2008 | 2006 GMC Envoy

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