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2004 Transmission/differential concern

 
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Skorpio8



Joined: 12 Apr 2020
Posts: 1

PostPosted: Mon Apr 13, 2020 1:43 am    Post subject: 2004 Transmission/differential concern Reply with quote

Greetings all, so I'm driving freeway 75-80 with a sudden small loss of power. I decelerated and things seemed ok for the 3 miles to home staying at about 60-65. When I parked tho, loud rattle from undercarriage. I park and realized when I shift gears there is a loud whirring and grinding noise, no reverse. It sounds and feels like like it's trying to grab a gear, smooths out as I continue shifting. Damn! There has been a loud clunking at times when I shift that I think is the u-joint or something in the drive-line, also has been a loud rattle which I've assumed was the heat shields rattling. So, blown cat, diff, gears???? at a loss.
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smj999smj
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Joined: 22 Jan 2012
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Location: Prospect, VA

PostPosted: Mon Apr 13, 2020 9:57 am    Post subject: Reply with quote

Sounds like the transmission mechanically failed internally by your description. Clogged converters aren't going to cause a no reverse issue and it's very unlikely U-joints or a bad diff will do so, as well, but you could jack up the back and inspect those items by turning the rear wheels while in neutral. Check for play in the U-joints and watch them while someone turns it, checking for signs of binding as the joints turns. You could also drop the trans pan and look for excessive metal shavings and/or metal bits, which would be the sign of a hard part failure. You could also do stall and line pressure tests if you get a pressure gauge.
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2006 Pathfinder LE VQ40DE AWD, aftermarket radiator, Airlift 1000's, Bilstein HD rear shocks, Doug Thorley shortie headers and mid-pipes, Magnaflow 12580 muffler, aFe Momentum GT CAI w/ dry filter, XTP plenum spacer, Superchips Flashpaq tuner
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