Grinds in 5th
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Pro
Joined: May 2004
Posts: 551
Likes: 19
From: Morgantown WV
Grinds in 5th
My 2001 6 sp will grind during the 1st shift of the day into 5th. After that it is good till the next cold start. Any thoughts? Is a syncro on the way out? The car has 60K on the odometer and I have never changed the transmission oil.
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Joined: Apr 2011
Posts: 3,333
Likes: 195
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
It could be few things but I would try changing the fluid first. I recommend GM # 88861800.
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Mine did this after I changed to Mobil 1 ATF (incompatible) after 50,000 miles. I changed to Amsoil ATD and it stopped immediately. Mine was grinding more than once a day.
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Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Same fluid I use in mine at the track:
AMSOIL Torque-Drive Synthetic Transmission Fluid (Product Code ATD1G)
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
