looking at a 95 deville.....
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, looking at a 95 deville..... in Past Cadillac Vehicle Discussion; hey guys i'd like your thoughts on some things. i went to look at a 95 deville with the 4.9 ...
  1. #1
    smoooth225 is offline Cadillac Owners Member
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    looking at a 95 deville.....

    hey guys i'd like your thoughts on some things. i went to look at a 95 deville with the 4.9 this morning. 116k, good int, decent ext. owner said (and it looked) like it sat for a week or two.when started, cranking was fast but engine took maybe 4-5 seconds to catch. took it for a drive about 4-5 miles, ran strong, no ses light but the brake light and traction light was on. pulled up the codes and got these:

    P016 (E016) ......................................... Voltage Out of Range [ALL SOL]
    P017 (E017) ........................................... Left Oxygen Sensor not ready
    P052 (E052) .................................................. ..... PCM Memory Reset
    P053 (E053) ........................................... Distributor Signal Interrupt
    P071 (E071) ................................................ Intermittent MAP Signal
    (those first 5 codes where h, or history)

    the following were current codes:
    T037 ........................................ LR Wheel Speed Sensor Continuity Fault
    I052 .................................................. ..... Keep Alive Memory Error




    now my concern is this,especially for the history codes: could the owner reset the computer and after a set amount of miles, the ses light pops on and the history codes become current? and what is the cause (and or fix) for the p016,p052,p053 and i052 codes? thanks in advance!

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    stoveguyy is offline Cadillac Owners Connoisseur
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    How much $$$? If car is $800 than cool. As codes add up, price for car goes down.

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    bigm57ict's Avatar
    bigm57ict is offline Cadillac Owners Connoisseur
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    Re: looking at a 95 deville.....

    If the owner reset the codes, they would go away, not become History.
    If you are seeing history codes, the owner did not clear codes

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    Ranger's Avatar
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    Re: looking at a 95 deville.....

    could the owner reset the computer and after a set amount of miles, the ses light pops on and the history codes become current?
    Not sure I am understanding your question. History means that the fault was not detected in the last 3 ignition cycles. If the owner clears the codes (resets the computer as you call it), they are gone. They will return as current if and when the fault is detected.

    P016 is suspicious as low voltage can wreak havoc with these systems and "can" cause false codes. P052 is either because battery power was pulled or low voltage as mentioned. At very least you probably need a new O2 and MAP sensor.

    Long crank time could be low fuel pressure or just in need of a tune up.

    T037 is most likely a bad wheel speed sensor. It is integral to the hub and bearing assembly so you are going to have to replace that unless it is simply unplugged (unlikely).

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    smoooth225 is offline Cadillac Owners Member
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    Re: looking at a 95 deville.....

    you guys, thanks for the replies.

    stoveguy: the guy first listed 1800, then 1500 then i went to see it and he came down to 1100. its clean and runs out good.

    bigm57: yes i hear that. thanks man!

    ranger: oh snap! a response from one of legends (no joke). thank you for the explanation of the codes. my initial question comes from this scenario: lets take another make of car, say a vw jetta. say this jetta throws a code for a o2 sensor and the ses light comes on. you want to sell this jetta but you dont want the potential buyers to see the ses light and know it needs work. so you use a code reader to "reset" the computer to clear the codes and the ses light wont come on for approx 50 miles. the potential buyer purchases the car, thinking it has no codes to set off the ses. then 50 miles later the ses lights come on.

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    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Yes, that's possible. Some codes will reappear immediately, others will not set until one "driving cycle" is complete. In one complete driving cycle, every monitored system/component operates, allowing OBD to detect any problems, and set codes. A driving cycle can be completed in less than an hour, or several days, depending on how, and under what conditions the vehicle is driven. There is no particular mileage that must be driven.

    GM driving cycle:
    http://www.obdii.com/drivecycle.html

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    smoooth225 is offline Cadillac Owners Member
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    Re: looking at a 95 deville.....

    moistcabbage, thanks for that link and the info. i never knew about the gm "driving cycle", and i def didn not go through a full driving cycle during the test drive.

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    smoooth225 is offline Cadillac Owners Member
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    Re: looking at a 95 deville.....

    update: i bought the deville. and as i suspected, about 20 minutes into a drive on the highway (and about 30 miles of total driving since i bought it) the ses light came on. i checked the codes and got a current p017--left o2 sensor not ready. seems like the mpg is lower on the highway for a deville too between 15 and 20mpg at 55mph. so i guess a o2 sensor is in order. but i have a question,-- i replaced a non working wiper motor last night, but i have yet to put the wiper arms back on. is there a special procedure to put the wipers back on to have them in sync and to park at the correct spot? thanks!

    ----------

    almost forgot, one more question. is this left sensor the upstream sensor before the cat? thanks!

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    Re: looking at a 95 deville.....

    Quote Originally Posted by MoistCabbage View Post
    Yes, that's possible. Some codes will reappear immediately, others will not set until one "driving cycle" is complete. In one complete driving cycle, every monitored system/component operates, allowing OBD to detect any problems, and set codes. A driving cycle can be completed in less than an hour, or several days, depending on how, and under what conditions the vehicle is driven. There is no particular mileage that must be driven.

    GM driving cycle:
    http://www.obdii.com/drivecycle.html
    That's OBDII, and doesn't exactly apply here. OBD1 operates quite differently - the OBD1 system doesn't actually use what OBDII calls "drive cycles", nor does it constantly monitor all systems like OBDII does - which is why it wasn't nearly as comprehensive or reliable.

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    stoveguyy is offline Cadillac Owners Connoisseur
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    What motor? 4.9 or NS?

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    Re: looking at a 95 deville.....

    OP claims 4.9 in the first post...

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    Quote Originally Posted by drewsdeville

    That's OBDII, and doesn't exactly apply here. OBD1 operates quite differently - the OBD1 system doesn't actually use what OBDII calls "drive cycles", nor does it constantly monitor like OBDII does.
    I didn't realize it was a '95.

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    brougham is offline Cadillac Owners Master
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    Re: looking at a 95 deville.....

    The codes will come up or become current once the computer senses a problem and become history if they've eiter been fixed or the readings from whatever sensor it was looking at falls into it's proper range.

    The 052 codes mean the battery was disconnected at some point. The coltage out of range and long cranking could just be from a weak battery or if the car has been sitting for a while. Deal with the other codes as they pop up.
    Get a set of factory service manuals for it on ebay. They go into the exact testing procedures for everything and will save guess work and replacing parts for no reason.

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    Re: looking at a 95 deville.....

    Quote Originally Posted by smoooth225 View Post
    but i have a question,-- i replaced a non working wiper motor last night, but i have yet to put the wiper arms back on. is there a special procedure to put the wipers back on to have them in sync and to park at the correct spot? Install them in the position you want them when in the park position.

    almost forgot, one more question. is this left sensor the upstream sensor before the cat? thanks!
    I believe you only have one O2 sensor (#4).

    http://www.gmpartsgiant.com/Page_Pro...001&SortKey=54

  16. #15
    drewsdeville's Avatar
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    Re: looking at a 95 deville.....

    There will be 2 O2 sensors on the '95 4.9. The left sensor is the one on the "front" bank, in the y-pipe near the radiator fan.

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