 Transmission question |
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| Thunderchief |
 May 13 2020, 02:28 PM
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#1
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Member  Group: Members Posts: 145 Joined: 12-August 19 From: Pasadena, CA. Member No.: 23,365 Region Association: Southern California  |
When the car is cold, the transmission seems to go into all of the gears. As it warms up though, it gets harder and harder to get into some of the gears. Second gear always seems to work but the other gears are hit and miss. What is your guess before I take the car in? Thanks.
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| porschetub |
May 13 2020, 02:54 PM
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#2
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Advanced Member Group: Members Posts: 4,698 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
When was the oil last changed and what weight/type was used ?
With the correct oil the box should shift less easily until the oil has warmed up. |
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| Thunderchief |
May 13 2020, 03:16 PM
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#3
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Member Group: Members Posts: 145 Joined: 12-August 19 From: Pasadena, CA. Member No.: 23,365 Region Association: Southern California |
The transmission fluid was just changed a few months back
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| Beebo Kanelle |
May 13 2020, 04:04 PM
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#4
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Member Group: Members Posts: 248 Joined: 22-November 12 From: Houston, Texas Member No.: 15,177 Region Association: Southwest Region 
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I'd check clutch adjustment. Make sure its completely disengaging and not dragging.
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| Thunderchief |
May 13 2020, 05:00 PM
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#5
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Member Group: Members Posts: 145 Joined: 12-August 19 From: Pasadena, CA. Member No.: 23,365 Region Association: Southern California |
Good thought. Hopefully it's something simple like that or the linkage needing adjusting.
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| Dr Evil |
May 16 2020, 12:11 PM
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#6
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Send me your transmission! Group: Members Posts: 22,995 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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Please check my sig below for my 31pages of notes. There is info there about such things.
Transmission fluid goes into automatics, only use GL5 80w90 gear oil in your 901 transmission. Change every year, or sooner if hard driving/high miles. It is not uncommon for things to get less precise when heated up as tolerances change. Oil was a good first recommendation as it changes as it is heated. Clutch cable is another culprit to verify. A quick test to know if your cable is too lose/not fully pulling/clutch not releasing, is if you grind AT ALL going into reverse. There are no synchronization parts on reverse and it is straight cut so it should slide right in with no issue unless it is still spinning due to being under load because the clutch is not releasing for one of the aforementioned reasons. Of course, check mounts and bushings, always. Miles on transmission? Any work done? Type of oil used? |
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