We bought a tahoe last year with over 100k miles and it recently developed some valve clack under heavy acceleration. Not knowing the full maint history I'm suspecting dirty intake valves and would like to do a full injection cleaning. We have two local shops close by, one using the Valvoline VPS Fuel System Service, the other uses the BG Fuel Treatment line.
Looking for suggestions on which of these tends to work better on cleaning up fuel deposits? I believe the cost is the same.
Looking for suggestions on which of these tends to work better on cleaning up fuel deposits? I believe the cost is the same.