Hello everybody,
I have an 03 Grand Marquis ultimate edition that was my grand fathers car before he passed away. I've owned the car for a little over two years now and it has approximately 75k on it. The problem I am experiencing started last year about this time and went away and has reared its ugly head again. so with that I will let you know what has happened. It started out when I was driving down the interstate on a cool morning last fall. I thought I would turn the vent on and enjoy the cool wheather unfortunately the windshield started fogging up so I cut the a/c back on and then noticed it was getting hot inside, really hot, then I noticed the heat was blowing out of the vents. I thought I must have hit the heat button instead but reallized that wasnt the case. no matter what I did it wouldnt quit blowing heat unless I turned the system off all together. I later spoke with the dealership and they werent much help so I pulled the controll panel and checked it out visually, no apperent problems, reinstalled it and everything works fine. Jump forward to present day and now I am having a different problem. When I start driving the car after it has sit for any amount of time off the a/c will blow out of the vent but when i accelerate it switches from the vents to defrost and then to floor and back to vent and then back to defrost or floor. It stays in the defrost/floor pattern untill I let off the gas and have very little engine vacuum then it goes back to the dash vents.
I have ran the self check but nothing is coming up. So with that very loooong discription can some one please help me figure out what is going on?
I also have a question about not wanting to start but thats a different post.
I have an 03 Grand Marquis ultimate edition that was my grand fathers car before he passed away. I've owned the car for a little over two years now and it has approximately 75k on it. The problem I am experiencing started last year about this time and went away and has reared its ugly head again. so with that I will let you know what has happened. It started out when I was driving down the interstate on a cool morning last fall. I thought I would turn the vent on and enjoy the cool wheather unfortunately the windshield started fogging up so I cut the a/c back on and then noticed it was getting hot inside, really hot, then I noticed the heat was blowing out of the vents. I thought I must have hit the heat button instead but reallized that wasnt the case. no matter what I did it wouldnt quit blowing heat unless I turned the system off all together. I later spoke with the dealership and they werent much help so I pulled the controll panel and checked it out visually, no apperent problems, reinstalled it and everything works fine. Jump forward to present day and now I am having a different problem. When I start driving the car after it has sit for any amount of time off the a/c will blow out of the vent but when i accelerate it switches from the vents to defrost and then to floor and back to vent and then back to defrost or floor. It stays in the defrost/floor pattern untill I let off the gas and have very little engine vacuum then it goes back to the dash vents.
I have ran the self check but nothing is coming up. So with that very loooong discription can some one please help me figure out what is going on?
I also have a question about not wanting to start but thats a different post.
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