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2007 avalanche 4x4 5.3 vortex burns oil setting off many…

2007 avalanche 4x4 5.3...

2007 avalanche 4x4 5.3 vortex burns oil setting off many dish lights

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

Traction/ engine / abs

Mechanic's Assistant: Are you fixing your Avalanche yourself? What have you tried so far?

Dealer bill so far 3500.oo . Changed both valuve covers . leak down test on and on

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

At the point to replace engine .

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Answered in 6 minutes by:
1/20/2018
GM Bob
GM Bob, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1,241
Experience: 30 plus years. experience as GM technician, ASE Master Technician and GM Certified.
Verified

Hello! My name is***** to JustAnswer. Hope I can help

How much oil are you using?

Are you fouling out any spark plugs?

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Customer reply replied 7 months ago
1 quart pre 1000 KM Fouling 7000 km on #3 and 7 Thanks Rob
Customer reply replied 7 months ago
I love the full load but dislike dish lights and alarms going off .. Runs wall on Highway in town the shits .Canada say there is nothing wrong . I know lots of people having same problem with 5.3 flex . Please help Thanks

Here are two bulletins from GM

https://www.dropbox.com/sh/ihbez67vkf8jsms/AAAZ4mYjXOmfSKWbb5wPhCvya?dl=0

I have done the valve covers before. Ended up replacing the pistons and rings

How many miles do you have on the engine?

When the spark plugs fouled out. Did the porcelain crack off from the plug?

If so I have found the cylinder walls scored from the broken plug.

I used a camera scope to see the scoring.

I replaced the motor because it was still under warranty.

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Let me know if you need more help.

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Customer reply replied 7 months ago
thanks Bob

Please take a moment and rate my service.

Thank you

GM Bob
GM Bob, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1,241
Experience: 30 plus years. experience as GM technician, ASE Master Technician and GM Certified.
Verified
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