2010 forester at temp light on traction light on cruise light flashing check engine on what is going on

Asked by Dec 09, 2015 at 07:35 PM about the 2010 Subaru Forester 2.5 X

Question type: Maintenance & Repair

lights on 0733 and 0734 codes appear   I erase codes and car is fine then within 10 miles all these lights come on again

3 Answers


Erasing the codes does nothing. You need to fix what is wrong.


This may help - http://repairpal.com/OBD-II-Code-P0733 Both codes are for incorrect gear ratio which likely means there is a transmission problem.


Let's hope you only have old, dirty ATF. So start with draining and refilling the AT with 3.5 qts fresh ATF. But since the autobox capacity is 8.8 qts it's best to drive around awhile and then REPEAT the drain and refill so as to replace a higher percentage. After the second refill drive normally. If problem disappears you dodged a bullet. Please learn to drain and refill (once) the ATF annually thereafter.... If problem persists despite clean fluid you probably have a bad solenoid or blocked valve, in which case you should try to flush- clean the tranny chemically. DO NOT REVERSE POWER-FLUSH this tranny as you may indeed back-flush dirt into a valve, causing exactly the problem you're experiencing. So maybe the pan will need to be dropped for cleaning of a valve or replacement of a solenoid. Clearly you must get some onsite technical horsepower to continue. Worst case, the ATF was so burnt up that the tranny is deemed too dirty to clean up. In that case REPLACEMENT with a used cleaner one is better than attempting a full overhaul, as the failure rate of the latter is too high. But given that yours is only 5 yrs old I'm a little more optimistic. So buy 8 qts ATF and gently give this guy a couple of transfusions...again, using gravity...not back-flushing under pressure! Good luck.

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