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Quick question about trans flush
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chrisgritz
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Aug 27, 2014, 10:48 AM
Post #1 of 10
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Quick question about trans flush
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Hey guys so i recently bought a 2004 ford explorer and it has 137k miles on it. I have been reading around and a lot of people say that i should not flush the transmission because the pressure of the flush will force the gunk into other parts of the transmission? Problem is i am not sure if the person before me had ever done a flush before. So my question is, can i still change the fluid and filter without a flush? Just do it manually so that there isn't any pressure to push the gunk into other parts of the transmission or should i not just change it at all? Also if i don't change it at all, can i at least change the filter? Thank ya!
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Discretesignals
Ultimate Carjunky
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Aug 27, 2014, 11:15 AM
Post #2 of 10
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Re: Quick question about trans flush
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What you should do is drop the pan and inspect for excessive clutch or other metal parts. If good, change the filter. Use Mercon V ATF.
Transmission flush is a misnomer. The machine that performs the service is actually an exchange machine. The machine doesn't force transmission fluid at high pressure into the transmission to clean stuff. The fluid pressure in the cooler circuit acts on a diaphram in the machine that pushes clean fluid into the cooler circuit while the other side of the tank in the machine fills up with old fluid. Transmission cooler pressure that is already produced by the transmission itself is what causes the exchange to occur.
If your transmission is working properly, you inspected the bottom of the pan, and changed the filter, it shouldn't hurt anything to have the fluid exchanged as long as they use the correct type of ATF, don't add any cleaner or conditioners, and their machine is properly maintained.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Aug 27, 2014, 11:19 AM)
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kev2
Veteran
Aug 27, 2014, 11:52 AM
Post #3 of 10
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Re: Quick question about trans flush
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As my colleague points out
" long as they use the correct type of ATF "
read that again CORRECT fluid not universal, one type fits all, additives to bring to spec- meaning the machine MUST be dedicated to MERCON V ATF - and that will be the issue. SO if its NOT A FORD dealer be suspicious.
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Hammer Time
Ultimate Carjunky
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Aug 27, 2014, 12:31 PM
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Re: Quick question about trans flush
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Most places are using a synthetic that is acceptable to all the specialty fluids.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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kev2
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Aug 30, 2014, 7:31 AM
Post #5 of 10
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Re: Quick question about trans flush
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This is the issue - they CLAIM to be acceptable ...... your call.
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Hammer Time
Ultimate Carjunky
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Aug 30, 2014, 9:02 AM
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Re: Quick question about trans flush
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I worked fr a shop that has been using it in everything that doesn't take Dexron for probably more than 10 years and never had a problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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kev2
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Aug 30, 2014, 10:05 AM
Post #7 of 10
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Re: Quick question about trans flush
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your statement - we used in everything that doesn't use Dexron... Exactly What I am trying to get across there is NO universal, one type fits all -
Jiffy lube mentality is the threat- 5w30 + 20w50 = 10w40 ...... dexron III + modifier = ATF4 -
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Hammer Time
Ultimate Carjunky
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Aug 30, 2014, 12:46 PM
Post #8 of 10
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Re: Quick question about trans flush
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I beg to differ.
Some of these synthetic fluids meet all the requirements of the specialty fluids such as ATF+4 and MerconV.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Aug 30, 2014, 3:49 PM
Post #9 of 10
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Re: Quick question about trans flush
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I agree with KEV. There is no way a universal fluid is going to cover all formulations and viscosities of all fluids out there. Might work for you, but there is no way I would use that in a $5000 transmission that was engineered to use a specific fluid.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Hammer Time
Ultimate Carjunky
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Aug 30, 2014, 5:00 PM
Post #10 of 10
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Re: Quick question about trans flush
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It looks like CVT and a couple others are eliminated.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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