Question about GMC Sierra 1500

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Hi i changed knock sensor on a 95 gmc sierra 1500 350ci and all my antifreeze came out is this right

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One bolt probleywas thro the water jacket ull b all right just put some sealer around bolt before u put it back good luck

Posted on Apr 04, 2011

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1 Answer

Problem starting 95 gmc sierra w/5.7


Do you spark. Has the fuel filter been changed. Have checked for fault codes. Also Knock sensor will not cause a no start. If you spray starting fluid into the engine will it start?

Jun 07, 2013 | Cars & Trucks

1 Answer

Where's the knock sensors on a 2007 gmc serria 1500 5.3L


under the intake plentium right in the middle of the valley between the heads. bad for wires getting corroded and rusted. it holds water in the knock sensor holes, you can buy the harness

Mar 07, 2013 | 2007 GMC Sierra 1500

1 Answer

Wiring diagram 5.7 gmc sierra knock senser


Looks like the wire from the sensor to the module is dark blue.
You can find the engine diagram on autozone's website under repair help.

Sep 02, 2012 | 1994 GMC Sierra

1 Answer

How do you change a knock sensors on my 2001 gmc 1500hd


Changing knock sensors on 2001 GMC 1500hd
1. Remove the intake manifold.
2. There are 2 sensors located on a plate under the intake manifold. These are the knock sensors.
3. Remove the wiring harness assembly from the knock sensor.
4. Install the new rear bank knock sensor and tighten to 15 lb ft.

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Sep 14, 2011 | 2001 GMC Sierra 1500HD

1 Answer

How do I replace the Knock Sensors on a 2002 GMC Sierra 2500HD 6.0L V8 Gas engine? How do I change the serpentine and AC belts? Last but not least how to replace the drivers front differential seal?


remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housinng once you have remove all the above, your freaken engine will look naked, you can see the location of the knock sensor is locate in the engine valley hope this helps u might wnat to google knock sensor so u knoe what it looks like

Feb 19, 2010 | 2002 GMC Sierra 2500HD

2 Answers

I REPLACED MY KNOCK SENSORS ON MMY 03 GMC 6.0 AND NOW IT WONT IDLE AND IT DONT HAVE ANY POWER WHAT DO I NEED TO DO?


make sure they sold you the!! right 1 first off! and make sure the wire has continuity to the plug on each and and is securely fastened to the sensor also check to see if you knocked a wire off at the ignition module that controls the dwell

Jan 21, 2010 | 2003 GMC Sierra 1500

1 Answer

Where do i find a knock sensor a 1993 gmc sierra


Should be on the right side of the engine by the starter.Has a 1 wire connector.It does not go into the cooling system so you can just take it out without draining the coolant.Hope this helps.Good luck.

Jan 06, 2010 | 1993 GMC Sierra

2 Answers

Hi i have a 2002 gmc sierra 5.3 liter engine i


Which o2 sensor did you replace? P0157 is low voltage - o2 sensor, Bank 2, sensor 2. So it would be the post cat o2 sensor on the passenger side. If you replaced the drivers side the code would still be there.

Nov 08, 2009 | 2000 GMC Sierra

1 Answer

I need to replace my knock sensors on my 2001 gmc sierra 2500 hd pickup. how do i do it?


it will take a 7/8 wrench and on the passenger side on bottom by starter it is a round sensor with one wire going to it un plug wire and screw it out now you may lose some antifreeze so be ready to screw new one back in quick

Aug 16, 2009 | GMC Sierra 2500HD Cars & Trucks

2 Answers

2003 GMC Sierra Knock sensor and oil pressure??


the knock sensors are located below the intake plenum,or,upper intake manifold as some call it, they screw into the lower intake, the front one is sensor 1, the rear is sensor 2. it is wise to change both if you have some miles.since you are going to be buying a gasket set to do this job.the sensors are cheaper than the gaskets.

Jun 12, 2009 | 2004 GMC Sierra 1500 Crew Cab

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