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1993 Cadillac EL Dorado engine repair

Tiny
ALLEMAN6
  • MEMBER
  • 1993 CADILLAC ELDORADO
  • V8
  • FWD
  • AUTOMATIC
  • 100,000 MILES
This is a perfect touring coupe for my wife, however, its been in a Cadillac dealership for over four weeks. It has had the 100000 mile checkup. The engine stop running, some time it will restart, other times its a tow job. Two different dealerships have tried to fix the problem. The first dealership replaced the air intake and there were no further problems for over two years. When the problem occured again, the car was taken to another dealer. To date they have had the car for four weeks. They say it wont refuse to restart after it cuts out and therefore the computer can not tell them the problem. HELP JJ
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Friday, April 18th, 2008 AT 8:27 PM

7 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Take it to another shop. If they are properly testing the car they should atleast know if they are having a issue with spark, fuel pressure or injector pulse.
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Friday, April 18th, 2008 AT 8:31 PM
Tiny
ALLEMAN6
  • MEMBER
  • 3 POSTS
Not a good answer for the problem. Idon't need a mechanic to tell me to take it somewhere else. Two shops have run all the tests, but cn't find the answer.I thught maybe someone has run ito this problem and solved it jjj
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Saturday, April 19th, 2008 AT 9:30 AM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
So they are saying that it re-starts everytime?

Until it stalls and doesn't restart, it may be a waiting game. At that point it can be tested under the criteria Tim mentioned. I can take guesses, but that isn't going to help you unless I magically hit the mark.
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Monday, April 21st, 2008 AT 10:27 AM
Tiny
ALLEMAN6
  • MEMBER
  • 3 POSTS
Yes, they say it restarts. What criteriia did tim mentiin? Ciould it be the alternator, sun roof, or some other option that is active to make it stalll. Like a cobination of events?Jj
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Monday, April 21st, 2008 AT 2:22 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The first reply-spark, fuel pressure or injector pulse.

IF I was to take a guess as far as a more common problem, I would say a MAP sensor.N The two crank sensors if it is a 4.6 motor. IF it was a 4.9 motor I would be suspicious of a ground to the pcm or the pcm itself.

But those are giant leaps of faith. Tim might have a good point of going to a shop that is capable of troubleshooting. A shop is only as good as the employees.
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Monday, April 21st, 2008 AT 5:07 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Just a note
we had a similar issue few month back with a DeVille
towed in at night next morning started for us no problem
we will drive it for two three days can not, will not duplicate the problem
customer pick car up drive it, then it s back
making story short
it was the security system
ignition cylinder key
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Monday, April 21st, 2008 AT 6:10 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Sorry for not responding earlier. And about what the car is losing is a fairly simple thing to do if you have any idea of how a car works, thats why I suggested to bring it to another repair shop. If the vehicle stalls and restarts, something made it stall and the tech is giving it a honest effort trying to find the problem he should be able to tell if its because of spark, injector pulse or fuel pressure. These are all basic tools you need to fix automobiles. And as the other guys mentioned, if we dont have any information to give you a diagnosis on, we are being as negligent as the repair shop that is working on your vehicle.
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Monday, April 21st, 2008 AT 7:36 PM

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