My car dealer told me I have the following problem - a stuck secondary shutter valve problem because of carbon build up. The Mazda service bulletin describes it as the following: RX 8 has experience a MIL with DTC P2070 (SSV Stuck Open). This may be caused by carbon build up near the SSV bushing, which may cause driveability concerns (hesitation and / or lack of power) and / or DTC P2070. A cleaning procedure and a revised SSV with stronger actuator force is now available. The dealer wants $800 to fix it and I'm 5,000 miles over warrenty. Can any fuel cleaner (STP) be used first to try fix the problem before I need to have the dealer charge me for all the labor to pull everthing apart to clean or replace the shutter valve? Thanks for any advise. Is this an overcharge on labor?
secondary shutter valve stuck ? on 2006 Mazda RX-8
by rcassidy in Bethlehem, PA on February 18, 2010
ANSWER by Superbob , September 05, 2010
I checked the bulletin and all that is true. You might try "Seafoam" cleaner that you get in an auto parts store and put in the fuel. And you need to romp on it (rev it up good) frequently, it might unstick and start to wolk again. the labor hours quoted in the bulletin are 1.6 and I don't think that's realistic, would take more time than that, warrantee time is not usually realistic. If you know a Mazda specialist you could have him eheck that the actuator is working, try to free up the valve, clear the code and try it again. It looks like a lot of trouble to do the job as described in the bulletin but think $800 would get me to do it anytime.. But I think that's a few $hundreds$ too much for a customer to pay. Talk to a Mazda guy before you get too depressed.