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Transmission Fluid and Filter change
Posted on 6/22/16 at 9:21 am
Posted on 6/22/16 at 9:21 am
I've got a 2008 Chevy silverado with 174,000 miles on it. I was going to tackle a fluid and filter change in my transmission this weekend. What are some pros and cons in your experience? I've heard that your clutch could start slipping once changed if your fluid has never been changed before. I've had this truck for most of the miles on it and can make the assumption that the fluid has never been changed.
Posted on 6/22/16 at 9:26 am to bull361
If you're just pulling the pan off, and changing the filter. it will be fine.
All of those horror stories are usually a result of those suction machines at the quick change places.
Just make sure you fill it back up with fluid. It usually takes 4 or 5 quarts.
All of those horror stories are usually a result of those suction machines at the quick change places.
Just make sure you fill it back up with fluid. It usually takes 4 or 5 quarts.
Posted on 6/22/16 at 9:28 am to bull361
If the fluid has been in there that long you probably shouldnt change it.
Does it shift ok?
Are you noticing a problem?
Does it shift ok?
Are you noticing a problem?
Posted on 6/22/16 at 9:28 am to bull361
Don't drain the torque convertor. Recover most of the fluid in a clean container and strain through a paint strainer. Put that back in the trans and top with new fluid. Change the filter.
Correct.
quote:
I've heard that your clutch could start slipping once changed if your fluid has never been changed before.
Correct.
Posted on 6/22/16 at 9:30 am to dawgfan1979
quote:
All of those horror stories are usually a result of those suction machines at the quick change places
Those places make it worse, but the horror stories were there before that and in my experience, they're true.
Posted on 6/22/16 at 9:33 am to bull361
What happens is if the fluid has been in there a long time it will start to varnish. That varnish gets in all the seals throughout the transmission. New fluid is high in detergent and that detergent will wash the varnish out of those seals and damage them. If the seals cannot hold pressure it will not shift right.
Posted on 6/22/16 at 9:46 am to Placebeaux
I used to clean equipment that had various different fluids run in it throughout its life cycle. The stuff with ATF was always spotless
Posted on 6/22/16 at 9:47 am to Hammertime
ATF is some fricking incredible shite.
Mix with Kroil for ultra incredible penetrating lubricant
Mix with Kroil for ultra incredible penetrating lubricant
Posted on 6/22/16 at 9:48 am to Placebeaux
every once in a while it will hesitate and shift hard into 2nd gear.
Posted on 6/22/16 at 9:50 am to dawgfan1979
quote:nailed it. The converter holds like 9 quarts by itself. Dropping the pan,swapping the filter then refilling isn't going to do shite to hurt your transmission. Just make sure to go back with some good synthetic fluid.
If you're just pulling the pan off, and changing the filter. it will be fine.
All of those horror stories are usually a result of those suction machines at the quick change places.
Just make sure you fill it back up with fluid. It usually takes 4 or 5 quarts.
Posted on 6/22/16 at 9:51 am to bull361
quote:sounds like a sticking shift solenoid
every once in a while it will hesitate and shift hard into 2nd gear.
Posted on 6/22/16 at 9:54 am to DownshiftAndFloorIt
It most definitely is. I always hated opening a governor up and just having burnt oil caked in it. The ones with ATF were always in great shape and had the least amount of wear
Posted on 6/22/16 at 9:56 am to bull361
Check in this order
shift solenoid (scan for code)
if no code
Trouble could be from:
check ball in valve body plate
accumulator piston spring
shift solenoid (scan for code)
if no code
Trouble could be from:
check ball in valve body plate
accumulator piston spring
Posted on 6/22/16 at 9:59 am to Placebeaux
That's what happened to mine. Output shaft seal started leaking, added some fluid to fill it back up after it got low, wouldn't hold 3rd anymore and slipped it's arse off in first.
Posted on 6/22/16 at 10:01 am to DownshiftAndFloorIt
4L60E are notorious for losing 3rd
Posted on 6/22/16 at 10:03 am to Placebeaux
It's an 80e, but i was told the issue exists with them also. 3rd and reverse were basically gone.
It lived through 250k miles of abuse though, so I can't say anything bad about it. I took it apart myself. Other than the seals being hard it looked brand new in there.
It lived through 250k miles of abuse though, so I can't say anything bad about it. I took it apart myself. Other than the seals being hard it looked brand new in there.
Posted on 6/22/16 at 10:27 am to bull361
quote:
every once in a while it will hesitate and shift hard into 2nd gear
My recommendation would be to just top it off with the appropriate fluid. Abnormal shifting may be due to low levels. Has there been any signs of trans oil leaking? Even a tiny bit adds up over time.
If you have a trans dip stick and fill reservoir, it's a quick deal. If, like my car, the only way to add trans fluid is to get under and add directly to the pan, you have some work to do. And it must be level to get it right.
Posted on 6/22/16 at 10:31 am to bull361
Don't do it unless you're prepared to replace transmission. If you're dead set on doing it , you're doing the right way. Replacing only the filter , by dropping the pan , is only going to replace about 20-30% of the fluid. So it won't be as drastic as flushing the system but , from my expirence , I wouldn't do it.
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