Car turning off

Asked by Frieza3rdform Nov 17, 2016 at 11:17 PM about the 1999 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

My 99 deville keep losing power, I have gotten a  
new alternator and battery, it's odd though because
while I'm driving the volts go up (11ish while
headlights are on/12 ish while they are off) but as
soon as I'm not hitting the pedal to accelerate the
volts drop and the car shuts off and won't turn
back on until I recharge that battery, any help
would be awesome thanks in advance

3 Answers

F_O_R answered 7 years ago

11 volts is very low. If you have a volt meter in the dash it should read somewhere around 13 volts. I think your alternator is not working or that it is very weak. While the car is running check the voltage at the battery with a meter, it should read about 13.5 to 14.5 volts.

2 people found this helpful.
Mark helpful

Frieza3rdform answered 7 years ago

So maybe the new alternator that was put in is faulty? Idk I'm fed up with this car but it's so beautiful I can't help but to keep trying thanks I'll swap it out 1 more time

Mark helpful

F_O_R answered 7 years ago

Maybe it is faulty or you have a bad electrical connection some where. Clean and tighten the battery connections and check the alternator connection too. Buy a quality rebuilt. Most of the chain stores sell crap. Look for one that has all new internal parts.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Car turning off 3 Answers

    My 99 deville keep losing power, I have gotten a new alternator and battery, it's odd though because while I'm driving the volts go up (11ish while headlights are on/12 ish while they are off) but...

    1999 Cadillac DeVille Sedan FWD

    -

    Maintenance & Repair

  • My 2004 cadillac devile starts up but makes a loud sqeeling noise then shuts off . like somethings not turning for the car to stay running 3 Answers

    Something not turning maybe pulley, waterpump, r timing chain.

    2004 Cadillac DeVille Sedan FWD

    -

    Maintenance & Repair

  • blower wont turn off when car is turned off 1 Answer

    Just installed a new blower motor.it worked fine now it won't change speed or shut off when car is turned off

    1995 Cadillac DeVille Concours Sedan FWD

    -

    Maintenance & Repair

  • Ran over curb, car shut off and wont start. 2 Answers

    I ran over a median curb (going 15mph). Instantly shuts off. It turns over but wont start. No fluid leaks and there is no sign of damageI. I recently changed the oil and sparkplugs.Can anyone help...

    1996 Cadillac DeVille Sedan FWD

    -

    Maintenance & Repair

  • Car turns off 1 Answer

    Hello, When I am driving my Deville will randomly turn off. How can i fix this? It does it when the car is on and still, and it will do it when I am accelerating. What could be broken and how can I f...

    2000 Cadillac DeVille

    -

    Maintenance & Repair

DeVille

Looking for a Used DeVille in your area?

CarGurus has 293 nationwide DeVille listings starting at $1,925.

ZIP:

Own this car?

Share your experience with others.

1999 Cadillac DeVille

Write a car review

Review another car

Shortcuts

Search Cadillac DeVille Questions

CarGurus Experts

  • #1
    james sparrow
    Reputation
    4,060
  • #2
    tuff4x4
    Reputation
    3,080
  • #3
    Cynthiasmith
    Reputation
    2,840
View All

Know more, shop wisely

Search

Related Models For Sale

Used Cadillac Eldorado
153 listings starting at $9,800
Used Cadillac Seville
48 listings
Used Lincoln Town Car
18 Great Deals out of 397 listings starting at $500
Used Chevrolet Impala
269 Great Deals out of 4,033 listings starting at $500
Used Chevrolet Corvette
685 Great Deals out of 12,328 listings starting at $3,200
Used Lincoln Continental
30 Great Deals out of 633 listings starting at $9,660
Used Chevrolet Camaro
608 Great Deals out of 9,224 listings starting at $4,899
Used Chevrolet Silverado 1500
4,179 Great Deals out of 131,069 listings starting at $1,000
Used Ford Mustang
931 Great Deals out of 22,596 listings starting at $1,100

Used Cars For Sale

2005 Cadillac DeVille Sedan FWD For Sale
11 listings starting at $4,995
2004 Cadillac DeVille Sedan FWD For Sale
13 listings
2003 Cadillac DeVille Sedan FWD For Sale
3 Great Deals out of 28 listings starting at $1,925
2002 Cadillac DeVille Sedan FWD For Sale
16 listings
2001 Cadillac DeVille Sedan FWD For Sale
4 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.