Car

Ask a Mechanic Online and Get Answers to Your Car Questions

Ask an Expert,
Get an Answer ASAP!

Car
This answer was rated:

Cadillac Deville: My cruise control doesnt work

Once I'm at cruising speed...

Once I'm at cruising speed, I press the "Cruise Set" button. The message "CRUISE ENGAGED" appears in the information center, but the speed will not hold.

Show More
Show Less
Ask Your Own Car Question
Answered in 6 hours by:
12/27/2012
Master Tech Lee
Master Tech Lee, ASE Master Tech
Category: Car
Satisfied Customers: 582
Experience: 36 years Domestic and Import Electronics Diagnostic Tech
Verified

I am checking on the codes. I will be back Leon

 

Codes are P0 code is an oxygen sensor code and the ao code is blend door circuit problem

Ask Your Own Car Question
I am looking into the no cruise with light on -Leon
Ask Your Own Car Question
Customer reply replied 4 years ago
Ok great. Thanks Leon. Let me know if you need any other information from me. I am somewhat car savvy, so I should be able to answer some basic questions if you have any for me about the car. - Shawn

Need you to check the basic things first. Lets check the vacuum lines first.
graphic

Ask Your Own Car Question
graphic
Ask Your Own Car Question
Customer reply replied 4 years ago
I'll check the lines as soon as I get a chance and let you know what I find out. It will likely be tomorrow evening before I get a chance. Other than the visual check, how else can I check the vacuum without an actual vaccum tester?
start engine and pull the lines to see if there is suction with your finger.

See you in the evening.


Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

Leon,


 


I checked the vacuum lines under the hood and they were good. However, both were unplugged from the servo! I hooked them back up and snugged the other connections (they were a not quite on all the way). Now the cruise works just fine. I drove it around town for about 30 minutes just to make sure. It slows down about 2 - 3 MPH from where I set it, but it's consistent. I would expect this to be somewhat normal on this age of vehicle. Would you say the same?


 


I'd like to ask a second question about the A040 code (blend door circuit problem). I can either close this one and open a new question or I can just raise the answer price to $56. Let me know what you'd prefer.


 


Thanks for the diagrams, they were extremely helpful.


 


Shawn

Assume!! Glade i could help.

About the Ao code. I will be back in the morning to set up testing to remedy that problem. And the O2 code you might just clear the codes and replace o2 sensor.

You can raise the answer price. No sense starting over and we might loose each other to another expert.


Thank you so much, Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

You are very welcome. I'm also glad you could help!


 


Good deal. If you could send me a diagram of where the left o2 sensor is, I would appreciate it.


 


About the Ao code: At first it seemed like my heater wasn't working at all. I changed the thermostat, and made sure the hoses going to the firewall were hot. Then I realized the passenger side heat works (but not at it's best). This is weird in itself because my year model has single climate control as opposed to dual. I took off the glove box and watched the actuator arm move back and forth. It seems like it struggles going from hot to cold but goes smoothly from cold to hot. Again, strange since the A/C blows nice and cold. I made a video of the actuator arm action. I can upload it here if you'd like, or I can post it on YouTube and send you the link.


 


Shawn

ok i will - Leon Goodnight, Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

When I raised the price, I didn't see $58 as an option, So I priced at $48 and will just give you a $10 tip to give you what I promised. Smile


 


No need to rush by the way. I'll be traveling immediately after work, but will be back in "fix-it mode" on Saturday.


 


Thanks again,


 


Shawn

ok will do, Leon

Have a nice trip
Ask Your Own Car Question

I have to leave for two weeks my mom is not well need to go tend to her. If you still want me to help please rate me to stay connected. If not i will loose you to another expert. Sorry if i have caused an inconvenienced to you.

Cheers,

Leon

Master Tech Lee
Master Tech Lee, ASE Master Tech
Category: Car
Satisfied Customers: 582
Experience: 36 years Domestic and Import Electronics Diagnostic Tech
Verified
Master Tech Lee and 87 other Car Specialists are ready to help you
Ask your own question now
Customer reply replied 4 years ago
No worries. I hope your Mom gets to feeling better. I'll be here when you return. Do you have any intuitive guesses about why the heater blows slightly warm on the passenger side, but cold on the driver's side? This is even with the heat all the way up. The higher the blower speed the cooler both sides get. My car does not have dual climate control.

Blessings,
Shawn
Because of the bend door is not working correctly. Code AO40. I am still here until Monday due to the snow roads are bad. So When you are ready to start today let me know.

Thank you for the money $31.50 and bonus $7.50
Ask Your Own Car Question
Customer reply replied 4 years ago
You're welcome. I am ready. Do you want me to send you the video I took of the actuator arm action?
yes please
Ask Your Own Car Question
Customer reply replied 4 years ago
http://youtu.be/MBQSmp0vyOo

I ran it from hot to cold and vis-versa. It looks like it struggles going from hot to cold, which seems odd to me.
ok now at what temp setting ? arm is adjusting to the desired temp setting. If setting is set to the highest it should close the door to not allow any fresh cold air.
Ask Your Own Car Question
Need you to remove the arm from the blend door - move the blend door arm and tell me if it moves freely? if you feel some resistance then there is an obstruction - such as something fell into the defroster from top of dash into the blend house. If the arm moves back and fourth freely from one point to the other, then we have an ACP problem.
Ask Your Own Car Question
Customer reply replied 4 years ago

The door moves freely. What is ACP?

Air Conditioning Programmer - Do you know how to work the diagnostics from the climate control?
Ask Your Own Car Question
Customer reply replied 4 years ago

Oh, that sounds fun.


 


I have some basic instructions for it.

Do you know how to work the diagnostics from the climate control? yes lots of fun
Ask Your Own Car Question
Customer reply replied 4 years ago

Yes. I have some basic instructions for it:

ok i am sending this test to you please follow the steps accordingly, Leon

Attachment: 2012-12-30_205338_acp_test.pdf

Ask Your Own Car Question
Customer reply replied 4 years ago

Ok, I followed the steps. Here are the results:


Within 0 - 20 in AS12, AD23 matches accordingly. Between 21 and 78 in AS12, it struggles to match the commanded value in AD23 and will not settle within 60 seconds. From 79 to 99 in AS12, the value in AD23 remains at 78. Is replacing the ACP what I need to do now?

Yes AD23 remains constant at 78 you will need to replace ACPACP Location
Ask Your Own Car Question
Customer reply replied 4 years ago

I'm having trouble finding this part. Could you give me part numbers for a few different manufacturers?

I can not find it online either call GM Monday and also Call Rock Auto - I use Rock Auto most of the time to save on money and still get quality parts--[email protected]
1-866-ROCKAUTO (762-5288) (NNN) NNN-NNNNbr/>
I am going in the norning to moms - another storm is brewing so please when i get back that if you have not found one - i know i can.

HHappy New Year ! to you and family,


Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

I think I found it. Is this it? http://www.oreillyauto.com/site/c/detail/BWD0/PRG10M/04029.oap?year=1995&make=Cadillac&model=DeVille&vi=1025783&ck=Search_programmer_04029_1025783_1004&keyword=programmer&pt=04029&ppt=C0039

That is it great job, Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

Cool. Can you send me some instructions for removing it please? I've been trying to figure it out and can't really tell what all needs to come off.


 


Also, could you send the diagram for the o2 sensor? Thanks and Happy New Year to you and your family as well. Thanks - Shawn.

graphic
Ask Your Own Car Question
Talk to you in two weeks, Leongraphic
Ask Your Own Car Question
Customer reply replied 4 years ago
Ok great. Thank you so much Leon. Take care. Hope your mom gets to feeling better.
Happy New Year.
Shawn
You Bet!! Leon
Ask Your Own Car Question
Customer reply replied 4 years ago
Leon, I replaced the ACP as instructed, but when I ran the diagnostics test, it failed with the same criteria. The readout on ad23 still maxes out at 78 even though the blend door seems to move all the way over. How can I be sure it is all the way over?
hello i am back mom is better.

To check for full open - remove rod from blend door and move door to full open and mark the spot. Reconnect rod and run system and see if rod comes close to the spot you marked.
If it Does not come close please disconnect battery for 15 mins, then reconnect. Re-learn computer, start engine - drive 8 to 10 miles. At idle switch through all controls, heater A/C - temp selector from cold to hot vise versa. This will help computer learn its systems again.

I need to know is the cabin temp stable - is it too cold too hot?

Leon
Ask Your Own Car Question
Customer reply replied 4 years ago
Glad to hear your Mom is better. Moms are blessings. The cabin temperature is too cold. The passenger side is not quite as cold as the drivers side. I will check on the door position when I get home. How do I re-learn the computer?

Disconnect battery for 15 mins, then reconnect. Re-learn computer, start engine - drive 8 to 10 miles. At idle switch through all controls, heater A/C - temp selector from cold to hot vise versa. Run each selection for 2 min. This will help computer learn its systems again

 

Thank you,


Leon

Ask Your Own Car Question
Customer reply replied 4 years ago

Ok, sorry, I thought "re-learn computer" was a part of the process rather than the result of it. Thanks - Shawn

no problem
Ask Your Own Car Question
Customer reply replied 4 years ago

Leon,


I verified the door is fully opening and fully closing all the way. Even with the temperature set at 90, cold air is blowing out of the drivers side. The passenger side is less cold, but not warm by any means. I'm going to go ahead and re-learn the computer anyway, just to see if it will help. What should I do if re-learning the computer does not help?

check the heater hoses from the engine area. the ones that go through the firewall, are they hot or is one hotter then the other? Trying to find out if heater core is working ok.
Let me know
Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

The hose on the bottom side is very hot. The one on the top side is cool.

This sounds like a heater core problem. Cold one side the other hot - hot water flow is not circulating through heater core. Try flushing coolant first and if this does not work replace heater core. This vehicle does not use a Heater Control valve (Coolant Valve) as coolant is always circulated through the heater core. Rate of coolant flow through the heater core is established by the Coolant Flow Restricter. Temperature is controlled with the Air Mix Door which allows or restricts the flow of air through the heater core case.

Ask Your Own Car Question
Customer reply replied 4 years ago
How do I flush the coolant if I opt to do it myself?
I would run a five minute flush chemical like prestone from auto zone. read the instructions on bottle. The flush may help or not. Depending on the amount of debris clogging the heater core.Why the heat is felt some on passenger side is that the core is on that side, compared to the heat felt on drivers side. Most likely you will have to replace the core, esp if it is the original core. Did the code come \back in for the ACP?

Leon
Ask Your Own Car Question
Customer reply replied 4 years ago

Leon - I haven't seen the code come back for the ACP. I've been checking it every few days. I went ahead and bought a new heater core and will flush the whole cooling system since I doubt the car has ever been flushed. Would you recommend I do that before or after I replace the core? Could you send me instructions for replacing the heater core as well? Thanks, Shawn.

Here is the step by step fro removing heater core. Glad to know no code for ACP. I do recommend flushing the cooling system then replace core. If you need more help Shawn just ask. Leon

 

 

Remove the glove compartment and insulating panel.
Disconnect the rod to the blend door.
Disconnect the vacuum and electrics from the programmer that is to the right of the heater core housing.
Remove the 2 heater core cover screws and pull the cover off.
Remove the heater core mounting screws and lower the assembly out of the housing. Watch and protect carpeting from coolant leaks.

 

Heater Core R&R

Ask Your Own Car Question
Customer reply replied 4 years ago
How long should it take to change out the heater core?
about 1-1/2 to 2 hours
Ask Your Own Car Question
Ask Master Tech Lee Your Own Question
Master Tech Lee
Master Tech Lee
Master Tech Lee, ASE Master Tech
Category: Car
Satisfied Customers: 582
582 Satisfied Customers
Experience: 36 years Domestic and Import Electronics Diagnostic Tech

Master Tech Lee 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:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Technician

1,212 satisfied customers

16 years of experience

Ted G.

Ted G.

ASE Certified Technician

1,708 satisfied customers

20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness

George H.

George H.

ASE Certified Technician

1,522 satisfied customers

ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist

GM Tech (Cam)

GM Tech (Cam)

Auto Service Tech

669 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Amedee

Amedee

Former ASE Master Tech

2,505 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Jerry

Jerry

Master Mechanic

2,181 satisfied customers

ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager

Richard

Richard

ASE Certified Technician

1,000 satisfied customers

12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes

< Previous | Next >

Related Car Questions
Can't turn off alarm. Won't start. Alarm beeps. 2000
Tried resetting alarm with key and fob...now fob will not work. I have 2 colored security lights flashing...one red with word security under it and one blue with no lettering. … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
908 satisfied customers
Disconnected battery now alarm activated and won't crank. It
disconnected battery now alarm activated and won't crank … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Can you send me detailed instructions on how to remove and
can you send me detailed instructions on how to remove and replace the driver side power window regulator on a 2006 GXP Gran Prix?… read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
I hooked the obd2 tool up to my 2011 duramac gmc and
I hooked the obd2 tool up to my 2011 duramac gmc and mistakenly removed the tool while ignition was still in. Now truckwont start..HELP” … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I have dodge grand Caravan 2015, and I have ROSEN Multimedia
I have dodge grand Caravan 2015, and I have ROSEN Multimedia navigation installed, Screen is frozen, I can not touch the screen All buttons are disabled. how can you help me please? … read more
molurch
molurch
Owner
Vocational, Technical or Trade Scho
941 satisfied customers
Something with the electrical system. 2003 suzuki xl7. All i
no, i do not know enough to know the questions to ask… read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
1,212 satisfied customers
All of a sudden it wont turn over how do you get the starter
all of a sudden it wont turn over how do you get the starter out with out taking of exhaust … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Disconnected battery while running. Shut off and reconnected
Disconnected battery while running. Shut off and reconnected battery. now won't start. No fuel pump sound. Will not turn over. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
I am trying to find detailed information for removal and
Hello, I am trying to find detailed information for removal and replacement of rear hub assembly on 2007 Suzuki XL7. … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
97 olds 88 replaced ac comp disconnected battery after
97 olds 88 replaced ac comp disconnected battery after repairs reconnected battery after repairs now no power to ac clutch … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
Ford lariat 2004 disconnected battery to clean terminals and
ford lariat 2004 disconnected battery to clean terminals and when reconnected terminals truck wont turn over/start ??? … read more
FixUrNissan
FixUrNissan
Shop Forman / Lead Tech / Parent
Vocational, Technical or Trade Scho
1 satisfied customers
My 1999 porsche boxster has a dead or disconnected battery,
My 1999 porsche boxster has a dead or disconnected battery, consequently I cannot open the hood or trunk with the latches by driver side door Please, can u advise me of a solution for this problem. Th… read more
Amedee
Amedee
Former ASE Master Tech
Vocational, Technical or Trade Scho
2,505 satisfied customers
Assistant: Thanks. Can you give me any more details about
Matthew Assistant: Thanks. Can you give me any more details about your issue? Customer: I just changed my wife brakes and the trac off light is on.… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
Moose, Assistant: Thanks. Can you give me any more details
Moose, Assistant: Thanks. Can you give me any more details about your issue? Customer: Wife was driving our 04 Odyssey yesterday. Throttle acted like it was stuck open. Very scary.… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Disconnected battery for 15 min. as advised, reconnected,
Disconnected battery for 15 min. as advised, reconnected, and still get ESP Fault message and when ignition is turned on I get press clutch pedal to start message, except car is automatic and no ignit… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
I'm looking for a detailed diagram or exploded view for
I'm looking for a detailed diagram or exploded view for replacing the antenna base on a 2010 Convertible Mini.… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Disconnected battery on 2013 Ford E350. Want will not start.
Disconnected battery on 2013 Ford E350. Want will not start. The dash lights and all the electronic work, but no crank.… read more
virtual auto tech.
virtual auto tech.
High School or GED
5 satisfied customers
Disconnected battery to add wire extensions handle bars and
Disconnected battery to add wire extensions for larger handle bars and now my left signal lights don't work. Checked the switch and the wires with meter and they are ok. Do I need to reset the TSM.… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 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