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Ask Mike S. Your Own Question
Mike S.
Mike S., ASE Certified Technician
Category: GMC
Satisfied Customers: 7500
Experience:  GMC N.A.I.S.E. Certified Auto-Mechanic
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06 GMC 150000 drove 30 miles to work ran great, slowed down

Customer Question

06 GMC 150000 drove 30 miles to work ran great, slowed down to turn in and almost died. Now it runs like crap changed fuel pump didn't help. Scanned it 857 coil packs changed new plugs and wires. Cleaned throttle body maf looks perfect has new air cleaner sounds like if I drive it home going to thrash. Need help divorce took money and now this!
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: Yes all fuses good
JA: What is the make/model of your car?
Customer: 06 GMC 3/4 6.0
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Plugs,wires 857 coils and fuel pump
JA: Anything else you want the mechanic to know before I connect you?
Customer: Sounds terrible but smooths out a little at 1500 rpm
JA: What year is your '06 1500?
Customer: 06 GMC 6.0 3/4 ton pu
Submitted: 10 months ago.
Category: GMC
Expert:  Mike S. replied 10 months ago.

Hi, I am Mike, welcome. I'm reviewing your question.

Expert:  Mike S. replied 10 months ago.

Ok, a few things here. A 1500 is not a 3/4 ton, it's a 1/2 ton, the 3/4 ton is the 2500. Second, what did that 857 mean, was that supposed to be a code? If so, you are missing 2 digits most likely a P and maybe an 0, was it a P0857? Last, have you changed the fuel filter yet? If not, do that next.

Expert:  Mike S. replied 10 months ago.

Do you still need help with this?

Expert:  Mike S. replied 10 months ago.

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