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sadc

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So I have a 1990 s13 fastback and its make a high pitch noise when going over 23MPH. And it only happens when you step on the gas. But if you let off, it'll go away. But from the sounds of it, it sounds like its coming from the back of the car on both sides. Heres a Video.....Click on the picture.




You can hear the noise at the start of the video. Then I let off the gas. I pretty much go back and fourth. So what can it be?
 
Yeah that's the drain plug. I used royal purple in mine and I added it through the gearshifter hole, as it's the easiest way if you don't have a pump. Just be careful with the boot that covers the tranny top at the base of the shifter. If it cracks you will smell tranny fluid every time you go for a drive. If you do wreck the boot you can get a new one from Nissan for really cheap( you install it by lubricating the shifter lever with tranny fluid and sliding it down from the top(remove shift Knob first), don't worry it won't rip).

By the way, the tranny fluid you use needs to be GL4 compatible (not harmful to soft yellow metals which are in all Japanese and European trannys) not GL5.

Also Redline is suppoosed to be really good.
 
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