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How do I check the transmisson fluid and fill it on a 2003 Cadillac Cts V6, 3.2L?

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The filler is the tube with the dipstick under the hood. Check when hot, engine running and the car in prk. Use a gooseneck funnel to bring the transmission fluid to the mark. Do not overfill.

Posted on Mar 13, 2011


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Posted on Jan 02, 2017


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Where do I fill up the transmisson fluid and what tools do I need to do it with on 2006 Cadillac cts 3.6 engine?

If you do not get an answer here in this symposium , please stop at any GMC dealer or at any used car lot and someone should be able to tell you the information you need.
God bless your efforts.

Nov 13, 2017 | Cadillac Cars & Trucks

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Need to add transmission fluid in Cadillac CTS 2008. How do you do it?

My 2009 CTS4 should be the same as your 2008 CTS. There is no dipstick tube to check or fill the transmission. The check plug is in the bottom of the pan. It loos like a drain plug, but it is not. The fill plug is on the passenger side of the transmission, just above the front of the oil pan. It is a plastic and rubber plug that is pulled straight up.

You'll probably be better off having it checked and filled at a dealer or trans shop.

Oct 05, 2014 | Cadillac CTS Cars & Trucks

1 Answer

I have a 2003 Cadillac cts and it won't shift out of second gear. The tranny pan was just replaced due to a crack and I filled the trans with 9.5 quarts of the correct fluid now it won't shift properly. It...

-First check fluid while the car is running at temperature (hot). In Park position. and at good level. If not full at indicator add more fluid and find out next. Still have same problem....? Let us know.


Aug 09, 2013 | Cadillac CTS Cars & Trucks

2 Answers

I recently got an oil change. Now when I'm driving it's smocking under the hood. I trun the heat on in the smock is coming into the car. Do anybody no what my problem is? 2003 cadillac cts

most likely the mechanic spilled oil when filling, check to make sure the oil filler cap is still on. if it is just spilled oil it should burn off and be ok.

Dec 18, 2010 | 2003 Cadillac CTS

1 Answer

I cant find the cap to put the transmisson oil on a cadillac 2003 cts. Help me plz.

there is no cap or dip stick level is check from a plug at right side of trans with engine running in park

Oct 06, 2010 | Cadillac CTS Cars & Trucks

1 Answer

04 cts transmission fluid never changed now at

Do nothing if everything seems OK. Drain and refill, but never flush, you will stir up gunk in the pan, if you have hard or sluggish shifts

Jul 01, 2010 | 2004 Cadillac CTS

1 Answer

Cadillac cts cranks but won't start

My 2003 CTS would not start on the first, second or third try after filling the gas tank. Finally after several months of this occuring every two weeks a check engine light came on. It was the evac purge valve. Tom

Jan 06, 2010 | 2004 Cadillac CTS

1 Answer

2003 Cadillac CTS V6

the sensor is wearing out, that causes the gas not to back flow, or you need a new gas cap(pressurized). I would get a GM gas cap, because the after markets aren't that reliable for your car.

Sep 05, 2009 | 2003 Cadillac CTS

1 Answer

Where do I pour the power Steering Fluid?

Pull up on the engine cover. It should pop off with slight force. The power steering fluid reservoir is under it.

May 27, 2009 | 2003 Cadillac CTS

1 Answer

I have a Cadillac CTS 2004.. 3.6L V6 engine. I need to know if my car has a dipstick? And is it to check the level or just a hole to fill.

I too have the 2004 CTS.
Just today, my dealership checked my transmission fluid level because I have gear noise.

There is NO dipstick!

The car is put up on the hoist with motor running and transmission in neutral.
There is a fill / level check plug located on drivers side of transmission through which the level is checked.


Jan 07, 2009 | 2004 Cadillac CTS

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