![]() ![]() Here is what my oil looked like after I cleaned the magnet in the oil. But I have heard many stories about flushing failures, and I believe my theory is why.įinally, to exercise my hypothesis, the last time I took one of my Honda manual transmissions apart, as I race the car and need to fix it every once in a while, I cleaned the magnet off in the oil, just to see what the oil would look like with the contents of about 6 months of racing duty metal shavings from the magnet in the oil. I have never had a problem with a transmission that was simply drained and filled. I believe the flushing technique does not flush, but actually contaminates the system by blowing the collected particles off the magnets and not washing it fully out. My experience has been that i drain/fill my transmission oil every single year, and I have drained/filled a 2003 auto trans Honda accord about 4 times with over 250k miles on it, and none of my cars have ever had a problem. They fill it back up and send you on your way, and low and behold, your trans blows up 4 months later. So now what you have is a huge amount of metal shavings floating around in the oil/fluid. It doesn't get all rinsed out because the guys are only supposed to "flush" it for a few minutes and that's it. That fluid can dislodge a serious amount of material from the magnets all in one shot. They stick a probe into the transmission and shoot high pressure transmission oil/fluid all over the inside of the transmission case. after many years, they look like giant balls of gunk.Įnter the "transmission flushers". They are there to collect metal shavings that accumulate with wear of the gears. If you ever open up a transmission, you will see one or more very seriously strong magnets. ![]() By actively helping the moderators with this you ensure that the r/Cartalk community continues to be a worthwhile and knowledgeable resource for car repairs. ![]() Report posts and comments that fall outside the guidelines. ![]() If you do not take the time to include this basic information your post may be removed until it is revised. By making a good attempt to narrow down where and what may be causing the problem you save those trying to help many steps in diagnosing the problem.** Be sure to also include the year, make, model and engine size of you car in your title, along with your main issue.** For example "2003 Ford Crown Victoria 4.6L exhaust manifold bolts rusted off" would be an acceptable post title. Take pictures, crawl under the car, look under the hood. Attempt to investigate the repair issue on your own. Have as much information as you can about the issue before posting. If you still aren't sure about something you are about to post, please look at the links down below for other subreddits that might be better suited for your question, or message the moderators.* Most repairs have already been covered multiple times somewhere in great depth that will satisfy your needs. * Remember that posting here is not a substitute for using Google. Some examples of things that are NOT GENERALLY ALLOWED: links to articles or videos that are for profit, professional-level body work repairs, detailing or cleaning questions, aftermarket car stereo questions ( /r/CarAV), car reviews ( r/Cars), new & used vehicle recommendations, price comparisons for tires, stereos, exhaust, etc, and especially questions regarding cost of repairs or the legitimacy of a mechanic's quote. It will let you read and reset the codes. You can get a code reader from Amazon that works with 1996 and up vehicles for about $15. They will have a letter followed by four numbers, for example "P1234". You can have codes read at Auto Zone, Pep Boys, O'Reilly's, etc., for free in most states. Get OBD codes! If you have a Check Engine (CEL) or Service Engine (SEL) Soon light on, get the codes read and have them available if possible befoer posting. We're here to help you, but not to assist in negotiating with mechanics (this is business/life advice, not repair advice) or to tell you what car you should buy. Also respect those that take the time to answer questions and remember that many are professional mechanics, who normally get paid very well to diagnose automotive repairs. Treat those asking for help with respect, and answer without bias toward them, their situation, or their knowledge (or lack thereof) about the repair issues. Post disappeared? Read the following guidelines, and if you think it still is relevant, message the mods to free it from the spam filter. We look forward to helping everyone with their car repairs and questions, but please take the time to read this sidebar. R/Cartalk is the original Reddit auto repair community, with over 650,000 subscribers and growing. ![]()
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