Auto Transmission Shift Noise and Fluid
Thread Starter
1st Gear
Joined: Oct 2017
Posts: 1
Likes: 0
Auto Transmission Shift Noise and Fluid
Hello,
I'm new to the Corvette world and have question regarding the C4 auto transmission. When driving I have an intermittent
problem where the car does not seem to know when to downshift? I hear a slight klunking sound. This will not
happen all of the time but seems more apparent when it's hot outside. I checked the transmission fluid level as per the
manual when hot and the level is hard to read due to a lot of bubbles on the dip stick. I checked the level when cold where
the car had not run at all and the level is high up around the bend in the dip stick. The transmission color is bright red.
Does anyone have suggestions as to how to proceed with this problem? Thanks for your help, Jim
I'm new to the Corvette world and have question regarding the C4 auto transmission. When driving I have an intermittent
problem where the car does not seem to know when to downshift? I hear a slight klunking sound. This will not
happen all of the time but seems more apparent when it's hot outside. I checked the transmission fluid level as per the
manual when hot and the level is hard to read due to a lot of bubbles on the dip stick. I checked the level when cold where
the car had not run at all and the level is high up around the bend in the dip stick. The transmission color is bright red.
Does anyone have suggestions as to how to proceed with this problem? Thanks for your help, Jim
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Why not just suck it out of the dipstick tube with a pump?
Last edited by 383vett; Oct 5, 2017 at 10:39 AM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
If you have something that will feed down the dipstick tube that would be ideal. Most people don't. There's such a pump commonly used to do oil changes on inboard boat engines. Since many times drain plugs aren't accessible due to hull a tube slides down dipstick tube and oil is sucked out.
