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Creplacet the engine and the instrument cluster does not

operate at all now JA: How...
creplacet the engine and the instrument cluster does not operate at all now
JA: How many miles are on the car? Is it an automatic or a manual transmission?
Customer: its a 2002 gmc 2500 4x4 unknoin milage
JA: Are you fixing your 2500 yourself? What have you tried so far?
Customer: i replaced the engine as it was blowin it runs perfect just no gauges work now
JA: Anything else you want the mechanic to know before I connect you?
Customer: nope
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Customer reply replied 1 month ago
Yep that looks like the wrong vehicle
Customer reply replied 1 month ago
2002 gmc 2500 4x4

and thats what its from...k2500

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see usually you need to add sierra, yukon c2500/k2500 etc.....

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Customer reply replied 1 month ago
Sorry it’s a Sierra
Customer reply replied 1 month ago
Hd also

engine?

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Customer reply replied 1 month ago
6 litre

ok standby

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Ill open this up to see if anyone else has better inforamtion.

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Customer reply replied 1 month ago
What
Customer reply replied 1 month ago
Ok that is all connected
Amedee
Amedee, GMC Technician
Category: GMC
Satisfied Customers: 26,898
Experience: ASE Technician advanced level specialist
Verified

Hello and welcome!

Different expert here.

Have you checked all fuses?

May I start by getting your VIN?

Thank you!

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Customer reply replied 1 month ago
all fuses are good vin is 1GTHK29U23Z171914

Thank you.

Can you check for power going to the cluster for me with the key on?

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Customer reply replied 1 month ago
Witch wire is the power an yes I can

Check them all.

Let me know

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Customer reply replied 1 month ago
Have power at orange and at pink with a test light

Excellent! THat checks out good.

Now we check the grounds.

There should be at least 2 grounds

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Customer reply replied 1 month ago
Thares actually 7 that light up with test light black , green with white stripe 2 of them blue, brown white stripe, light blue , and black with white stripe

The black and black/white are the grounds.

If the powers and grounds are good going into the cluster and the gauges are not working, the cluster is faulty or maybe the communication wire or circuit has been compromised. I would check that first and then replace the cluster and needed.

Here is a wiring diagram of the instrument cluster.

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Customer reply replied 1 month ago
Thank you

Your welcome!

I am glad I can help!

Please don't forget to honor your good faith deposit by rating my answer as "5 STARS or SMILEY FACES" for assisting you today.

Keep in mind, we can still continue this conversation at no further cost to you even after you rate my answer. Just reply back to me using this page and I will get it and get back to you ASAP!

I just ask that you allow time in between replies as I may be helping other customers or offline spending time with the family.

Also, if you are a member or if you have a subscription to the site, you still need to rate my answer in order for me to get credit for assisting you with your question.

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Please let me know if you have any further questions.

Thanks and have a great day!!

Amedee
Amedee, GMC Technician
Category: GMC
Satisfied Customers: 26,898
Experience: ASE Technician advanced level specialist
Verified
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Satisfied Customers: 26,898
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