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STALLS WHILE DRIVING?

Tiny
FLEETWOOD85
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 134,000 MILES
Caddy 99 deville the fuel pump replaced, new spark plugs, new wires, injectors were cleaned, new air cleaner. Car shuts off while driving. It will start right back up and go. Get to the next light and the same thing. What next.
Tuesday, April 1st, 2008 AT 3:55 PM

3 Replies

Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Any ck engine light?

No, replace the crank sensors. Both of them, and a relearn will have to be preformed at the dealer.

Yes, still would say crank sensors

pull the codes, off and warmer on the heater controls at the same time, with key in the on position. ( If no warmer button use the mode button down)
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Friday, April 4th, 2008 AT 2:08 AM
Tiny
MIKEYSTAATS
  • MEMBER
  • 1 POST
I swear to God this exact thing happened to me. I replaced everything that was mentioned, even EGR and cleaned the throttle body. And no one will ever guess what fixed it. A new key! I always used the regular gold key that came with the 1999 Deville, it only had 39,000 miles on it, but the key was starting to look all worn so I decided to use the spare keys. It hasn’t stalled since and it’s been working flawlessly for like 3 months. Which is a huge improvement compared to stalling out at every light. I’m guessing something went weird inside of the old set. But knock on wood. I think that’s your issue.
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Friday, May 5th, 2023 AT 10:21 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,884 POSTS
Excellent addition to this thread! Please feel free to use 2CarPros anytime!
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Friday, May 5th, 2023 AT 10:45 AM

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