Cadillac

Cadillac Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Cadillac
This answer was rated:

I'm having the hardest time finding out where the engine…

I'm having the hardest...

I'm having the hardest time finding out where the engine coolant drain plugs are on a 2008 Cadillac CTS with the 3.6 L engine

Mechanic's Assistant: Most cars have two fuse panels. Which are you looking for -- under the dash or under the hood?

I'm looking for coolant drain plugs on the engine block

Mechanic's Assistant: Are you fixing your CTS yourself? What have you tried so far?

I'm doing a coolant flush myself. I want to completely drain the engine of coolant. I've already drained the radiator, but I need to drain the engine block

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

What is the charge for using this service?

Mechanic's Assistant: You just pay a $5 deposit now and the rest only when you get a reply from the Cadillac Mechanic. All of this is 100% satisfaction guaranteed, so you can get a refund if you're not happy for any reason.

Okay that's fine

Show More
Show Less
Ask Your Own Cadillac Question
Answered in 6 minutes by:
10/30/2017
Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Cadillac
Satisfied Customers: 2,304
Experience: Automotive Instructor at Palm Beach State College
Verified

Hi, My name is Jay

There is two block drain plugs. One on each side of engine. Here is pictures of each drain on engine block for you. https://www.dropbox.com/s/syjie7dfnc11hei/2008%20cts%20coolant%20drain%20right.pdf?dl=0

https://www.dropbox.com/s/6xv8mqvhqi8mhz1/2008%20cts%20coolant%20drain%20left.pdf?dl=0

Ask Your Own Cadillac Question

If you have no other questions on this subject then please enter a 5 star rating so I get credit for helping you today. Thanks.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
Hello Jaybird. Thanks for these pictures! Are these bolts hard to get at to completely drain the coolant out of the engine?
Customer reply replied 3 months ago
I'm not really able to take a call right now, but thanks for the offer

They will be hard to get to behind the exhaust manifolds if you can even get to them with motor mounts and manifolds in the way. I would suggest using a small amount of air pressure to push out coolant from engine.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
I wish I could just drain the block. Draining the radiator and refilling the surge tank won't work as I have concentrated antifreeze. It seems the only way to get a proper mix is to flush the engine with water removing/diluting as much of the old coolant and then add concentrated antifreeze. Is there a better way to completely change the coolant with fresh 60/40 mix (I live in a cold climate)?

Without using a coolant exchange machine that hooks to radiator hoses it is hard to get all old fluid out and new in. You would need to do the fresh water run and drain a couple times to get most old coolant out. Even draining block does not clear the heater core.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
I guess I'll just have to flush with water and add concentrated antifreeze to the surge tank. I have deionized water, but is it absolutely necessary or would drinkable filtered water be fine?

Just so you know the entire cooling system is 12 quarts of 50/50 Dexcool and clean drinking water.

Ask Your Own Cadillac Question

The manual says clean drinking water. This is first time I have seen it specify this water and not deionized water.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
For people like me doing the coolant flush on their own (without a coolant exchange machine), what procedure would you recommend to replace the coolant after 5 years/100000 km?
Customer reply replied 3 months ago
Are you still there?

Yes i am. had to step away for a minute.

Ask Your Own Cadillac Question

I would just do the drain and fill every 3 years.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
I just have to run into a meeting. I already have mainly water in the engine so if I add a gallon of concentrate, I'll have a 25:75 dilution which isn't enough. What would you recommend to get to at least 50:50 i.e. how many more radiator drains and additions of concentrate?

I would drain all the water and then close it up and pour in at least 1/2 gallon and then mix 50/50 in the gallon and then do same with next gallon.

Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Cadillac
Satisfied Customers: 2,304
Experience: Automotive Instructor at Palm Beach State College
Verified
Jaybird61 and 87 other Cadillac Specialists are ready to help you
Ask your own question now
Customer reply replied 3 months ago
Hi Jay. Just so I understand, after draining the peacock on the radiator, around a gallon comes out so about 2 gallons of water are left in the engine. You’re saying I should add 1/2 a gallon of concentrated antifreeze, run the engine to mix and then drain and add a gallon of 50/50 mix. Then Repeat warming the engine to operating temperature, draining and then add another gallon of 50/50 mix. Is that correct? I’ve also been running the interior at the hottest temperature and max fan setting during the engine warm up. Is that necessary? Thanks for your help!

I would drain all the water you can get out and then put in the 1/2 gallon to one gallon if it fits of pure coolant then top it off with a 50/50 mix for the leftover coolant until it is full.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
Whenever I drain from the petcock, the most that ever comes out is around a gallon (but less than that in reality). The only way I can add a gallon of 50/50 is if I drain after adding the 1/2 to full gallon of pure concentrate. Is that what you’re instructing or do you mean that I should drain the radiator first, then run the engine without topping off the surge tank, then drain to get most of the water out and then add the concentrate followed by a 50/50 mix?

I would drain as much as comes out of radiator and overflow bottle and then add pure coolant as much as it takes. If you only have 12 quarts in the system when filled then if you can get in 6 quarts of pure antifreeze then you will be good.

Ask Your Own Cadillac Question
Customer reply replied 3 months ago
Okay that’s great. Thanks for all of your help! I will remember you and request you next time I have more questions. Take care and have a great night!

Thank you and you also have a good night.

Ask Your Own Cadillac Question
Was this answer helpful?
Ask Jaybird61 Your Own Question
Jaybird61
Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Cadillac
Satisfied Customers: 2,304
2,304 Satisfied Customers
Experience: Automotive Instructor at Palm Beach State College

Jaybird61 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Jerry Newton

Jerry Newton

Cadillac Technician

1,569 satisfied customers

ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Dave Nova

Dave Nova

Cadillac Technician

1,522 satisfied customers

ASE Master Certification. GM World Class Certification

Gm Tech (Cam)

Gm Tech (Cam)

Cadillac Mechanic

1,003 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

John

John

ASE Certified Technician

941 satisfied customers

ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE

George H.

George H.

ASE Certified Technician

775 satisfied customers

ASE Master Tech 15+ Years

Chris (aka- Moose)

Chris (aka- Moose)

Cadillac Technician

744 satisfied customers

16 years of experience

Don - Mo Lurch

Don - Mo Lurch

Cadillac Technician

690 satisfied customers

GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

< Previous | Next >

Related Cadillac Questions
My 2009 Cadillac CTS is just stalling out even now and then
My 2009 Cadillac CTS is just stalling out even now and then but it'll start back up it just started yesterday after I put gas in it … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I own a 2004 Cadillac CTS. The "U" shaped arm that goes up
I own a 2004 Cadillac CTS. The "U" shaped arm that goes up and down that the sunroof slides over is broken on one side and doesn't allow the sunroof to fully close. When I use a credit card (thin) to … read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
Just changed all the coils and plugs 2004 cts 3.6, it runs
just changed all the coils and plugs 2004 cts 3.6, it runs perfect but every time i start it the c/e light comes on with 6 codes, 301 thru 306. I could clear it while its running and it stays off. As … read more
ggrote1
ggrote1
Vocational, Technical or Trade Scho
13 satisfied customers
2003 cadilac cts 3.2 dash screen says battery not charging
2003 cadilac cts 3.2 dash screen says battery not charging service electrical system putdifferent battery in and two different alternators in same thing hadalt checked both weregood … read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
744 satisfied customers
Bumping when accelerating 08 cts timing belt changed bumping
Bumping when accelerating 08 cts timing belt changed bumping contnues … read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
2008 Cadillac cts Right head light on works on low beam even
2008 Cadillac cts Right head light on works on low beam even after changing to a new HID bulb … read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
744 satisfied customers
2007 CTS v-6 jerking and hesitation running rough around 50
2007 CTS v-6 jerking and hesitation running rough around 50 mph now running rough at idle also oil sensor replaced last week as check engine light was on, mechanic says it may need new spark plugs … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Bottom part of the coil did not come out. 2007 cts 2.8l. And
yes and i tried to put the coil back in to see if i could get the bottom part that has the spring in it out. did not work … read more
George H.
George H.
ASE Certified Technician
Associate Degree
775 satisfied customers
I have a2004 CTS Cadillac that will not start and the key
I have a2004 CTS Cadillac that will not start and the key will not come out of the ignition. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
744 satisfied customers
My 2007 Cadillac CTS with 98000 miles wants to start but
My 2007 Cadillac CTS with 98000 miles wants to start but won't turn over. The batter is good. It's getting fuel. It's been driving wonderful. I just don't know what happened. Now I am told it needs a … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a 2003 CTS that needs a thermostat. Is there any
I have a 2003 CTS that needs a thermostat. Is there any publication that would give me instructions on how to do this? … read more
Mechanic01
Mechanic01
2,019 satisfied customers
Misfire cylinder three 2007 Cadillac CTS 2.8 .We have
Misfire cylinder three 2007 Cadillac CTS 2.8 .We have changed spark plugs, coil pack, injector, wire, intake gasket. It runs fine on the road just when idle it is rough. … read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
I have an 06 Cadillac CTS. It's running great but is making
I have an 06 Cadillac CTS. It's running great but is making a tapping sound once the engine is at temperature. It could be the lifters or timing chain tensioner. It's also burning/using oil but I'm no… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
2009 cts awd shudders when turn sharp corners. Nothing so
nothing so far not gonna try to fix on my own just bought the car … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
406 satisfied customers
The liner is uneven when closing or opening. 2011 cts. No I
the top works it seems to be off the track , unevenly closes … read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
744 satisfied customers
Cadillac CTS: 2008 Cadillac CTS, battery died had to be
Cadillac CTS: 2008 Cadillac CTS, battery died had to be replaced, 2008 Cadillac CTS, battery died, had to be replaced with new battery, now dash lights blink and gauges don't work when the car is star… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
The engine of my 2006 cadillac cts was changed by an engine
the engine of my 2006 cadillac cts was changed by an engine of a 2008 cts the car worked very well for 11 months, a month later I had to try 2/3 to start the car, then it was not possible to turn it o… read more
Michael Solis
Michael Solis
372 satisfied customers
Heater core or hose is leaking inside car how do i remove
heater core or hose is leaking inside car how do i remove it … read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x