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HT4100 4.1, 4.5, 4.9 Discussion, Car not starting in Cadillac Engine Technical Discussion; the manual i got came straight from a cadillac dealership. it says 1992 but as far as i know its ...
  1. #16
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    the manual i got came straight from a cadillac dealership. it says 1992 but as far as i know its pretty much the same thing. my old neighbor worked at the dealership and gave me the manual.

  2. #17
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
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    Re: Car not starting

    I don't know what's different from 92 to 93, but they are different books...http://cgi.ebay.com/ebaymotors/1993-...item35b54e809f

    Never heard of needing to program in the fuel pump. You might try the Eldorado forums.

  3. #18
    carnut is offline Cadillac Owners Master
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    Re: Car not starting

    An engine needs 4 things to run. fuel, spark, proper timing and compression. Have we ruled out a failed timing chain? Not knowing mileage is why I ask. Go back to basics and verify that when TDC is in line on the pulley, that the #1 cylinder is truly at TDC. We are all assuming electrical when in fact it could be mechanical.

  4. #19
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    i have 237,000 miles on my car. how do i check the timing? what does TDC mean?

  5. #20
    carnut is offline Cadillac Owners Master
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    Re: Car not starting

    TDC (top dead center) How to set the timing is in that book you have. At that mileage the timing chain or cam gear could have easily failed. This is not an interference engine meaning the valves are not damaged when the gear or chain fail unlike most overhead cam motors. Thats the good news!

  6. #21
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    ok im at work right now i can do the timing at home by myself fairly easily? and on my way home im going to buy a coil i guess and see if it starts my car. if not ill just take it back. ill also set the timiing and see if it starts. i havent been able to check the fuel pressure or check the voltage on my coil i dont really have the tools to do that i guess i could borrow them from orielly's to check those things. thanks for all the help hopefully i get my car started soon

  7. #22
    cadillac_al is offline Cadillac Owners Connoisseur
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    Re: Car not starting

    The easy way to diagnose your Cadillac is to read the codes and check the fuel pressure and check the spark. That will tell you a lot. The mileage is pretty high imo so everything is about at the end of its life. If you have no spark, I think it's easier to buy a new/rebuilt distributor than to buy the individual parts. The instructions for reading the codes is at the top of this section of the forum.

    http://www.cadillacforums.com/forums...x-engines.html

  8. #23
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    theres are no current codes. i replaces the coil lastnight and my car started. but its acting really weird. it idles at 2500. but the car does start now. i tried running through the codes again an still no current codes.

  9. #24
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
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    Re: Car not starting

    Quote Originally Posted by cadillaceldo93 View Post
    theres are no current codes. i replaces the coil lastnight and my car started. but its acting really weird. it idles at 2500. but the car does start now. i tried running through the codes again an still no current codes.
    It sounds like you are having a problem with your ISC (idle solenoid control) and possibly the TPS (throttle position sensor). Go to the section in the service manual and read up on how to do the idle learn procedure. You might have a bad ISC, not uncommon for these to go bad.

  10. #25
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    ok i will when i get off work. one thing i may have forgot to mention cuz i feel like an idiot for letting it happen. but my car got towed by a moron and the tow rope got wrapped around the front of my car, like around the radiator lol so the metal got bent back towards the engine the only thing i can see visually that got messed up from this tow is the radiator fan is pushed back a little. so it rubs on the part that actually holds the fan on to the radiator maybe i can take a picture later and show you guys. but i wouldnt think that would have anything to do with my car having a high idle but who knows. ill look in my manual later and see what i can figure out and post again thanks for all the help.

  11. #26
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
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    Re: Car not starting

    Quote Originally Posted by cadillaceldo93 View Post
    but my car got towed by a moron and the tow rope got wrapped around the front of my car, like around the radiator lol so the metal got bent back towards the engine the only thing i can see visually that got messed up from this tow is the radiator fan is pushed back a little. .
    Is it on top or bottom? Does it look like it can be removed with bolts, nuts? I don't recall what there is up there that could have gotten bent. I'd say that was the tow truck drivers fault, they should know where to hook up without damage.

  12. #27
    cadillaceldo93 is offline Cadillac Owners Member
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    Re: Car not starting

    it got towed by my gf cousin hes an idiot lets leave it at that. the part that got bent back is like where the car hood latches next to the sway bar or whatever its called( the bar that holds the engine in place and the fan is right under that so when it got pushed back in bent the plastic bars that hold the fan and the fan blades are rubbing up on the plastic bars holding on the fan

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