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PostPosted: Mon Mar 20, 2017 7:14 pm 
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Posts like an L27
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Joined: Tue Jun 03, 2008 12:51 am
Posts: 748
Location: Missouri
Year and Trim: 95 SSEi
05 GXP
The tranny in my GXP has a leak at the hose snap-in fitting.
The leak is kind of bad but I have been putting off replacing
the fitting. JB weld worked for about a month but it still
leaks horribly.

Anyway, I have been trying to watch the fluid level closely
so it doesn't get low and I can't get a good reading on the
stick.

When I pull the stick on a cold non-running car it is completely clean
with no fluid on the stick at all.
When I warm up the car and pull the stick while it's running
and in neutral the stick is completely coated to the top - over
the full mark. What gives?

The car is on flat ground and I wipe the stick clean first before
I reinstall tight, and then pull it to check the level.

Also the stick has markings that say "Cold" and "Hot" but
no matter which the engine is, it still covers the entire stick
with fluid.

I thought maybe I overfilled it, but I have been wiping up
puddles every day in my garage for a month and the level
indication has not changed, despite daily driving.

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Black 05 GXP (some idiot put the first 12K on it)186K miles
Black 04 Tahoe (original owner)310K miles
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PostPosted: Mon Mar 20, 2017 9:58 pm 
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Joined: Tue May 27, 2008 8:53 am
Posts: 5396
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom
I assume you are pulling the stick, wiping, and then re-dipping to get the level, correct?

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PostPosted: Mon Mar 20, 2017 10:08 pm 
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Posts like an L27
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Joined: Tue Jun 03, 2008 12:51 am
Posts: 748
Location: Missouri
Year and Trim: 95 SSEi
05 GXP
Yes, that's why I wrote...

skregal wrote:
The car is on flat ground and I wipe the stick clean first before
I reinstall tight, and then pull it to check the level.



Sorry.... couldn't help it.

_________________
Black 95 SSEi (original owner) 238K miles
Black 05 GXP (some idiot put the first 12K on it)186K miles
Black 04 Tahoe (original owner)310K miles
Black 16 Traverse (original owner)90K miles
Black 15 Lacrosse (some nice lady put first 15K on it)43K miles
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"You can have one in any color as long as it's black" - H. Ford


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PostPosted: Mon Mar 20, 2017 11:26 pm 
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Joined: Wed Apr 01, 2009 7:11 pm
Posts: 2587
Location: Alberta, Canada
Year and Trim: 2004 GXP, 2008 STS, 2008 DTS
Never had a problem checking mine. Does it look like there are any tiny bubbles in the fluid? Perhaps cavitation is causing the fluid to foam or splash because the level is really low? My GXP is in storage right now so I can't check, but if I'm not mistaken, there was always fluid on the tip of the dipstick (even when not running). The level of course changed appropriately when it was running.

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PostPosted: Tue Mar 21, 2017 11:33 am 
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Joined: Wed May 13, 2009 10:45 pm
Posts: 5717
Location: CHICAGO
Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
Always check transmission fluid when it (the transmission) is warm/at operating temp and the engine is running.

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PostPosted: Tue Mar 21, 2017 11:51 am 
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Joined: Mon May 19, 2008 6:04 pm
Posts: 25505
Location: Browerville, MN
Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
Quote:
Transmission Fluid Checking Procedure

Applying the brake pedal during this procedure will affect the fluid level reading.

1. Start the engine and operate the vehicle for 15 minutes or until the transmission fluid reaches an operating temperature of 82-93°C (180-200°F).
2. Park the vehicle on a level surface.
3. With your foot on the brake, move the shift lever through each gear range. Pause for about 3 seconds in each range, ending in Park.
4. Apply the parking brake and let the engine idle for 3 minutes.
5. Remove the transmission fluid level indicator, wipe the indicator clean, and reinsert the indicator. Give the indicator a full twist to close.
6. Wait 3 seconds and remove the indicator.
7. Read both sides of the indicator. The fluid must be within the hot cross-hatched area using the lowest level reading.


Quote:
Dry Sump Oil System

This transmission uses a dry sump method of operation. There is no reservoir of fluid in the bottom pan during operation. The majority of fluid remains in the side pan. Fluid is continuously supplied from the bottom pan to the upper valve body. The upper valve body distributes fluid to the necessary components. The three pumps operate in the following manner:

Scavenger Pump -This pump continuously supplies fluid to the side pan by scavenging oil from the bottom pan.
Primary Pump - This pump operates on fluid from the scavenger pump and supplies line pressure for all gear ranges.
Secondary Pump - During demand driving situations such as forced throttle downshifts, wide open throttle upshifts, and Reverse, this pump helps the primary pump to reach the boosted line pressures that are needed. The secondary pump also helps supply the fluid capacity to the necessary clutches during initial engagement.

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