NEED HELP PERFORMING A TRANSMISSION FLUSH

2004 Infiniti G35

Tiny

sti402

December, 10, 2011 AT 1:43 AM

Ok I have 2004 G35x AWD sedan with 72000 miles on it, do u guys have any important tips on doing my transmission fluid flush (by myself) do I need to change the filter, how about the remaining fluid around the engine area how can I flush that. Just tryin to save money by doing it myself

FOUND 1510 RELATED QUESTIONS

1 Answer

Tiny

caradiodoc

December, 10, 2011 AT 2:03 AM

You can't flush the system yourself without the equipment. All you can do is a drain and fill with a filter replacement. That gets about half of the fluid replaced which is sufficient for general maintenance. When your mechanic flushes the system, they typically add a real strong detergent first, then drive it a little before doing the flush. That procedure gets all the old fluid out along with the detergent. The equipment is expensive, and many systems run through twice as much fluid as the system holds. A lot of new fluid washes right through the transmission and cooler and on out to the waste side. That wasted fluid adds to the cost.

In most cases, flushes are not necessary. On the other end of the extreme, I regularly use my '88 Grand Caravan, (non-computer-controlled transmission), to pull a tandem axle enclosed trailer that's bigger than the van, and I've replaced the filter and fluid once in 230,000 miles and 23 years. That's abuse, not neglect, but it shows what those old tough transmissions were capable of. Too bad they don't build 'em like that any more.

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