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Cadillac Seville / Cadillac Eldorado Forum Discussion, Changing a starter on a 98 SLS in Past Cadillac Vehicle Discussion; Post #10, first sentence; Have you removed the intake manifold and checked the starter connections ? You would not be ...
  1. #16
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Changing a starter on a 98 SLS

    Post #10, first sentence; Have you removed the intake manifold and checked the starter connections ? You would not be the first to find either a loose IGN to solenoid connector or a loose/missing starter positive cable stud nut.

    Trace back the starter positive cable - from the intake manifold, passenger end, to the hot positive junction from the battery - that connection clean and tight ???

    As JimD posted, there are relays and connectors to be checked, but unfortunately two of those connections are under the intake manifold.

  2. #17
    cantseedawall is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    i was having the same problem with my 97 ETC. it seemed to only happen when the temp outside dropped to around 40. on hotter days i have no problem starting her. when she dont start it will just give 1 click and thats it. i would have to trun the key 2-3 times and she would start by the 3rd try. everything turns on and is nice and bright and the computer says the battery has 13.4 volts. once she starts up she runs fine and has no problem starting again.

  3. #18
    jeffrsmith is offline Cadillac Owners Fanatic
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    Re: Changing a starter on a 98 SLS

    I had a similar problem a couple of weeks ago on my daughter's car, not a N* but had same symptoms - it was the ignition to solenoid connection.

    I would go with Subs suggestion and check the connections at the starter, you might be surprised.

  4. #19
    johnny kannapo's Avatar
    johnny kannapo is offline Cadillac Owners Connoisseur
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    Re: Changing a starter on a 98 SLS

    Battery volts can be good and the battery won't have the CCA's to crank it sufficiently. The battery should be load tested before coming to the conclusion the starter is faulty. I had 13.5 volts but the batt would discharge over 2-3 days and wouldn't have enough to crank. With that said a slow crank will burn up a starter.

  5. #20
    paddyshap is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    I'm going to check all of these things this afternoon. Provided they are accounted for, though, I might just get in there and swap out that starter.

    I'm pretty comfortable with the procedure for removing the intake manifold, but I have a couple of questions.

    1. Is it necessary to remove the throttle body from the car as well?
    2. If not, how do I unbolt the manifold from the throttle body?
    3. Should I disconnect the main air intake hose and all of the throttle cables to the throttle body before I start going after the manifold?

    Thanks for everyone's help.

  6. #21
    JimD is offline Cadillac Owners Connoisseur
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    Re: Changing a starter on a 98 SLS

    Quote Originally Posted by paddyshap View Post
    I'm going to check all of these things this afternoon. Provided they are accounted for, though, I might just get in there and swap out that starter.
    One more suggestion.

    Do you have another key you can try???

  7. #22
    paddyshap is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    Unfortunately, I don't have another key I could try. How might that make a difference?

    Also, it's true that this is a relatively new (winter) occurrence. If it is just the cold weather, is there something I can do, short of moving it back to Texas, to fix this?

  8. #23
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Changing a starter on a 98 SLS

    The keys have a transponder or resistor encased in the plastic head which informs the theft system that you are not trying to steal the car. If the car doesn't like the key it will lock itself down.

    Not sure about the pre-2000 models, but mine came with 2 black keys, 2 key fobs (#1 and #2) and a gray Valet key (which opens the door and ignition only).

    Your hard/no start problems are not due to cold weather. You need to go on an organized troubleshooting diagnosis, as posted, to find the cause.

  9. #24
    paddyshap is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    This particular key has worked fine for me in the past, so I doubt that's it. Subs, you're absolutely right about the diagnostic check. I couldn't remove the intake manifold myself (see above post about the throttle body, to say nothing of prying off the fuel lines, even with the proper tool) but I didn't want to take it to a mechanic.

    It's almost certainly something down underneath the manifold, be it the ignition connection, loose starter, bad solenoid or just a plain rotten starter motor. The easily accessible connections/relays/wires all appear to be in fine shape. Looks like I'm taking it into the shop and have them get down in there for me.

  10. #25
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Changing a starter on a 98 SLS

    Yo, Troops !!!!!

    paddyshap needs help from some pre-2000 Northstar owners - specifically intake manifold removal: fuel line disconnect, fuel rail removal, gaskets and torque. Starter motor checks.

    Any takers ????

    (paddy, I got your PM, but this is the sort of stuff that benefits the entire Forum. My 2002 is different from yours so I'm not going to attempt a SWAG [Scientific Wild Ass Guess])

  11. #26
    cantseedawall is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    any news on this? my baby wont start and im late for work. all her symptoms are the same as posted above

  12. #27
    BAM19040 is offline Cadillac Owners Member
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    Re: Changing a starter on a 98 SLS

    I'm tackling this job right now but im having an issue. How the hell do i disconnect the throttle cables? I was told to pry it open with a screwdriver and pull the ball out. Tried that and doesn't seem to be working for me. I'd hate to break it. Is there a secrete to doing this that i don't know? Thanks in advance.

  13. #28
    rodnok01's Avatar
    rodnok01 is online now Cadillac Owners Connoisseur
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    You hold the throttle open and the cable end goes into a slot that you remove, do cruise cable at same time.
    They can be a bear if they don't pop right out. Might want to squirt a smidge of lube on it if it don't want to come out.

  14. #29
    stoveguyy is offline Cadillac Owners Connoisseur
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    Yep, had mine off 3-4 times with motor yank, intake swap, egr swap. I casually used screwdriver to pop off plastic clip and broke the cruise clip! Dayum. Had to get different cruise "cable" from junkyard car. Never had the cruise servo open before. Bad karma I guess.

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