Ask a Car Mechanic and Get Answers to Your Car Questions ASAP
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.
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
Need you to check the basic things first. Lets check the vacuum lines first.
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.
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.
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.
No need to rush by the way. I'll be traveling immediately after work, but will be back in "fix-it mode" on Saturday.
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
The door moves freely. What is ACP?
Oh, that sounds fun.
I have some basic instructions for it.
Yes. I have some basic instructions for it:
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?
I'm having trouble finding this part. Could you give me part numbers for a few different manufacturers?
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
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.
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
Ok, sorry, I thought "re-learn computer" was a part of the process rather than the result of it. Thanks - Shawn
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?
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.
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.