Transmission fluid change.
Thread Starter
Instructor
Joined: Jun 2018
Posts: 111
Likes: 1
Transmission fluid change.
This may of been posted before, and if it has I'm sorry for asking again. And this may be a stupid question, again I'm sorry. I own an 84 C4 with the CFI engine. I need to change the trans pan gasket. For the life of me I can not find where to pour the new trans fluid. Can anyone tell me where it is under the hood?
Thread Starter
Instructor
Joined: Jun 2018
Posts: 111
Likes: 1
So there is no place to fill other than the dip stick? Also a little nervous to change the fluid. The car has 114k miles and I'm not sure if it's ever been changed before. Worried changing it will cause damage due to it's high miles. But the gasket on the pan has a slight leak so I need to drop the pain regardless
Race Director
Joined: Apr 2003
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From: moraga ca
So there is no place to fill other than the dip stick? Also a little nervous to change the fluid. The car has 114k miles and I'm not sure if it's ever been changed before. Worried changing it will cause damage due to it's high miles. But the gasket on the pan has a slight leak so I need to drop the pain regardless
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Melting Slicks
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From: Greater Cincinnati Area.
I certainly respect your desire to learn. Understand the $$$ argument also.
But be careful. If you mess the trans up it's about 1600 bucks.
A service manual is handy. You can review it before jumping into new projects. It covers a lot of little stuff you might not otherwise be aware of.
As far as high mileage fluid changes go - NO. New fluid (And Dex/Merc III is fine for your car) will not hurt it.
Transmission fluid is extremely detergent and what has happened in the past is transmissions with debris in them have had it washed loose where it finds it way into the controls (typically the governor) and sticks them, causing a no shift.
It's rare, but it can happen. If it does, they can be cleaned. It's an advanced project, though. You'd have to be very careful.
I would change it anyway because the idea of 100K, 35 year old, trans fluid makes me cringe. Then again, if it went south on me I own a transmission shop and you don't.
Best of luck. If you need any help just ask. These people know everything!
But be careful. If you mess the trans up it's about 1600 bucks.
A service manual is handy. You can review it before jumping into new projects. It covers a lot of little stuff you might not otherwise be aware of.
As far as high mileage fluid changes go - NO. New fluid (And Dex/Merc III is fine for your car) will not hurt it.
Transmission fluid is extremely detergent and what has happened in the past is transmissions with debris in them have had it washed loose where it finds it way into the controls (typically the governor) and sticks them, causing a no shift.
It's rare, but it can happen. If it does, they can be cleaned. It's an advanced project, though. You'd have to be very careful.
I would change it anyway because the idea of 100K, 35 year old, trans fluid makes me cringe. Then again, if it went south on me I own a transmission shop and you don't.
Best of luck. If you need any help just ask. These people know everything!
Last edited by confab; Jul 5, 2018 at 11:52 AM.
Le Mans Master
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From: Texas
Team Owner
Joined: Sep 2003
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This may of been posted before, and if it has I'm sorry for asking again. And this may be a stupid question, again I'm sorry. I own an 84 C4 with the CFI engine. I need to change the trans pan gasket. For the life of me I can not find where to pour the new trans fluid. Can anyone tell me where it is under the hood?
Last edited by WVZR-1; Jul 5, 2018 at 12:43 PM.
Team Owner
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From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
I can tell you I helped change a friends fluid in the transmissions and looking at the fluid it was so dirty, told him leave it alone, BUT we changed it anyway, and when we looked at the pan, it was full of metal and, another stuff.
We put it back together serviced it, back it off the lift, and that was last time it was into reverse, we had to rebuilt the transmission.
So be careful!
We put it back together serviced it, back it off the lift, and that was last time it was into reverse, we had to rebuilt the transmission.
So be careful!