1998 Seville STS Dying when shifted ...

1998 Seville STS Dying when shifted into Drive.

Posted in the Cadillac STS Forum


Modesto, CA

#1 Jun 24, 2009
I am at my wits end ! severl people and me have tried a lot of different things. I hope one of you had the same problem and fixed it so you can tell me how.. Or even Vast Knowledge will work..
After many test the Battery voltage is 12.1 and 14.1 at 1200 rpm .. the Fuel pump Pressure is steady at 40 to 45 PSI. The Northstar runs great at Idle and will rev. to anywhere you want in Neutral or Park. If you shift to Reverse you can ease backward with pressing the gas pedal very softly.
If you shift into Drive and the engine is cold you can also move forward. after a few times of this the car will shut off in drive as quick as you get the lever there. I had driven the car 1 mile before it bucked a couple times and shutdown. now this is with very light pedal pressure..It will restart about 6 times, then it refuses to start until it cools down. The only Code I get is the P1599 (Engine stalled or shut down) I would be so happy if someone can help with this..

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