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Wagons Chrysler Pacifica Chrysler Pacifica Maintenance & Repair Chrysler Pacifica Transmission Problems
722 messages, Last post on Oct 20, 2009 at 11:59 AM
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Replying to: drnager (Sep 15, 2008 10:48 am) So I've paid Midas for a o2 sensor I didn't need and have no idea when I'll get the replacement part I need. 
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Replying to: drnager (Sep 16, 2008 3:19 pm) I do not know what you paid for your PAC, but new our PAC was more than I earn in a year. In fact it's the most expensive vehicle I have ever bought. I want to protect our investment and for me the Dealership is the only one I trust, but that's just my opinion. Be well. farout |
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Replying to: drnager (Sep 16, 2008 3:19 pm)
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Replying to: rhollis (Sep 17, 2008 4:18 am) I speak from experience. This is my advice: 1 - O2 sensors and modern car tuning is one of the most mis-understood areas of a modern car. If an O2 sensor is bad, especially the first bank, the car can run like total crap. O2 sensors send a voltage signal from .1 to 1.0 volts to the ecm which tells the computer if the car is running rich or lean. They are narrow-band senors, so they don't record a true air fuel ratio, but rather give the computer a "rich" or "lean" signal. The car then "learns" and adapts as you drive as the fuel injector are pulsed based on this signal. The sensors are used only to fine tune the a/f as the ECM has a built-in fuel table. 2 - ONLY use OEM O2 sensors and get them from the dealer. The quality of "off" brand or non-original sensors are not very good. Just ask any dyno-tuner. You won't find them anywhere but the delear. 3 - The PAC's are equipped with a drive by wire system. They don't use a throttle cable. This may be where your problem lies. Although, the car may not like the O2 sensor signal, so it could be preventing you from driving it to prevent damage to the motor. I can't say for sure, as I don't know the car well enough. 4 - You need someone who is good with tuning or diagnostics. You won't find this at Midas, Sears, Wallmart etc.... You either need to go to a dealer OR find a good local guy who owns his own shop with a good reputation for solving problems. The car needs to be road-tested or put on a dyno with a data-logger to find the problem. Only then will the tuner be able to read the O2 signal and will be able to see what is going on. Going to Auto-Zone or Midas only get's you in the ball-park as far as codes are concerned. 5 - If you are on a tight-budget, make sure they know that. There is nothing wrong with that. Most shops will work with folks and cut them breaks....not usually dealers though, but it is still worth a try. 6 - Any shop that sells fuel system cleaning services should not be trusted. IMO, no reputable shop or mechanic would sell those services. They are a scam.
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Replying to: farout (Aug 25, 2008 2:18 pm) today my car is ready... I'll let you know. |
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Replying to: waterdr (Sep 18, 2008 7:36 pm) |
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Well, I'm back! At this point, I wish I could just get a replacement for my 07 PAC. After the torque converter replacement, I am still stuck with a whinning noise coming from the front at 50 MPH and above. I recently drove the car to Florida for a family vacation hoping that putting a few miles on it might help this situation. Wrong. The noise gets worse at freeway speeds, and the constant battle to correct the steering wheel constantly to the left practically had my wrists worn out! It is as if the only wheel that is pulling the car is the right front. The more gas you give it, the worse the pull. The most amazing amount of torque steer I have ever witnessed. And my wife's identical 07 PAC? Absolutely NO problems - No whining noise, No torque steer - NOTHING. Before my vacation, I practically begged my selling dealer to fix the problem. They had their "chief" service manager from another dealership they owned come and ride with me - a REAL scholar. He tried to tell me that as cars get older, parts on the front "move" causing wind noises that were not there before to be noticed.Anyone else out there fall off the turnip truck yesterday? At any rate, they kept the car a week, did not log a service ticket at all, never drove it from where I parked it - NOTHING. I even left 2 messages for the salesman that sold it to me, and HE never even returned my calls either. I am so fed up that I am just unsure what the next step should be. And a simple fact is that I will NEVER step foot in the selling dealership agian for ANY reason. I plan to call Chrysler and see what they might say, but the outlook is grim. Since when is getting an attorney involved ever been a positive solution? I won't even be able to afford that! This may be the last Chrysler product I ever own - a shame to hear from a person who's father had a Chrysler franchise for over 20 years! Keep you all posted. 
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Replying to: bulldozer (Oct 14, 2008 5:48 pm)
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Replying to: rhollis (Oct 15, 2008 4:25 am)
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Replying to: bulldozer (Oct 15, 2008 5:05 am) It might not hurt to haave an independent certified mechanic drive the car and make a report. This worked for me - one was at my expense and the other, who drove the car before and after attempted repairs, was on someone elses nickel.
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