Diagnose Your Car's Problem

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The best way to remove deposits is to have it done professionally by a qualified mechanic through a process known as "chemical decarbonization", where basic chemicals are carefully ingested by the engine that will help unseat and burn off this nasty crust. This procedure is relatively inexpensive and can be performed by any specialty shop

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Recommendation:

Take this vehicle to a garage and ask the mechanic to test the EGR valve. If the valve is indeed bad, have it replaced. Also, check the spark plugs for carbon deposits

What Next?

Take your vehicle to a shop and explain to the mechanic exactly what you learned here. Take this report with you: Print report

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