GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

proper way to check trans fluid

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Old Oct 8, 2006 | 08:36 PM
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Default proper way to check trans fluid

I have heard so many ways of checking the proper transmission fluid level. I tried to check it the other day after driving it around for about 30 minutes. I let it run in the driveway, the truck was level and I cyled through all the gear selections on the column, pausing for a few seconds on each one and puting it back in park. With the engine still running, I checked the level and it showed just a little low so I turned the truck off and added about a third of a quart in and fired it back up. I repeated the same process but now it showed a little over full Well I left it at that, and checked it again 3 days later and it showed a little low again using the same procedure, just below the hash marks. Am I doing something wrong, there seems to be no consistancy?
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Old Oct 8, 2006 | 09:35 PM
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Tranny cold, level surface. Truck idling in Park.
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Old Oct 8, 2006 | 10:49 PM
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Originally Posted by KySilverado
Tranny cold, level surface. Truck idling in Park.
Your saying I should just go fire it up first thing in the morning while its cold and dont cycle through any gears and use the cold reading?
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Old Oct 9, 2006 | 07:14 AM
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Originally Posted by OrlandoFL4.8
Your saying I should just go fire it up first thing in the morning while its cold and dont cycle through any gears and use the cold reading?
Exactly.
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Old Oct 9, 2006 | 04:14 PM
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Actually you should check it in neutral...be careful though. Also the fluid level will rise and fall depending on engine temperature. As long as you're in the hash marks you're cool.

Dave
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Old Oct 9, 2006 | 04:20 PM
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in the owners manual it says to get the tranny to normal operating temp, cycle through the gears on a level surface and check it while idling after 5 minutes of idling
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Old Oct 9, 2006 | 05:25 PM
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Originally Posted by KySilverado
Tranny cold, level surface. Truck idling in Park.
Tranny HOT, 45* angle surface. Truck brake stalling in 3rd @ 1800rpm.








Sorry couldn't help it.
I always check mine after a drive. Level surface, in park, idle.
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Old Oct 9, 2006 | 08:29 PM
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thanks, I checked it cold and it was where it needed to be in on the cold reading, Ill check it after a drive and see what it looks like using the hot reading.
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Old Oct 9, 2006 | 09:18 PM
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I check mine about every other time I fill up for gas, which is about every other week. lol. I was on a cell phone with the engine running (cut-out open), and this old lady came up to me and gave me and let me to the sdupit warrning sign. lol I was like "don't you watch meth busters? Cell phones don't cause fires"

O.K back on topic. lol
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