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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1681
Experience:  GM Grand Master Technician 2007. 14 year experience.
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I have a 2003 GMC Sierra 1500 5.3lt v8, engines run great

Customer Question

I have a 2003 GMC Sierra 1500 5.3lt v8, engines run great but no acceleration. I have changed the ecm, throttle body, gas peddle can you give me an idea where else I can look
Submitted: 2 months ago.
Category: GMC
Expert:  Amedee replied 2 months ago.

Hello and welcome!

My name isCustomerand I can assist you with your question.

Expert:  Amedee replied 2 months ago.

I am very sorry your having this issue with your vehicle.

I will try my best to answer all of your questions.

However, before we get started, please let me mention a few things.

1. If at any point you would like to speak on the phone, please feel free to request a phone call on your end and I can call you right away.

2. If you dont understand any technical terms or anything that I mention (component tests or theory or operation), please let me know and I will provide you with a more in debt explanation or answer.

3. Please understand that I am here to help you anyway I can.

Expert:  Amedee replied 2 months ago.

Is the check engine light on or flashing?

Are there any codes in the computer?

Are you looking for possible causes?

Customer: replied 2 months ago.
check engine lite on
working on getting codes now
yes looking for other possible causes
Expert:  Amedee replied 2 months ago.

Ok got it! Thanks.

Let me know about the codes so we can continue.

Customer: replied 2 months ago.
ok thank you will sign back in when I get codes
Expert:  Amedee replied 2 months ago.

Sounds good