Charging system

Asked by GuruHXVJP Jul 13, 2019 at 06:47 PM about the 2009 Cadillac CTS 3.6L DI RWD

Question type: Maintenance & Repair

2nd battery, 3rd alternator in 2 weeks
still not charging above 11.8. When
tested says regulator bad. What should I
do next?

3 Answers
43,910

Hornet_2497 answered 5 years ago

The regulator is normally built into the alternator. Not sure about Cadillac but on some Fords, voltage regulation is controlled by the engine computer. On Chrysler, there is a temp sensor under the battery to lower charging volts when it is hot outside, charge higher when it's cold out. When buying alternators, buy new ones, not rebuilt ones. That's all I know.

2 people found this helpful.
Mark helpful
159,075

Bob answered 5 years ago

You could stop buying the parts store junk and try a new or rebuilt from the local Cadillac dealership. Yes it will cost more. Better yet, have it looked at by a reputable mechanic.

Mark helpful
50

MENOKNOW answered 5 years ago

Check the fuse that is enclosed on the cable attached to the battery and alternator. I belive it's the starter cable not 100% sure. If battery is good and the alternator is good then what connects them two together? Has to be a fuse on the cable.

5 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Charging system 3 Answers

    2nd battery, 3rd alternator in 2 weeks still not charging above 11.8. When tested says regulator bad. What should I do next?

    2009 Cadillac CTS 3.6L DI RWD

    -

    Maintenance & Repair

  • Theft system 3 Answers

    My theft system is on how do I get it off

    2005 Cadillac CTS 3.6L RWD

    -

    Maintenance & Repair

  • 2005 Cadillac CTS theft system 8 Answers

    Hello, I have a 2005 Cadillac CTS, and the key is stuck in the ignition, the engine won’t crank, there is a red light in the mirror. After the key is turned to “on” for about a minute, the “ servi...

    2005 Cadillac CTS 3.6L RWD

    -

    Maintenance & Repair

  • Theft system on CTt 2006 1 Answer

    2006 Cadillac CTS 3.6L RWD

    -

    Maintenance & Repair

  • Theft system will not go off 19 Answers

    I have a 06 Cadillac cts the theft lock comes on out the blue and will not turn off. The key will get stuck in the ignition. I can turn the car on and even put it in drive. Pls help someone

    2006 Cadillac CTS 3.6L RWD

    -

    Maintenance & Repair

CTS

Looking for a Used CTS in your area?

CarGurus has 44 nationwide CTS listings starting at $6,999.

Postal Code:

Shortcuts

Search Cadillac CTS Questions

CarGurus Experts

  • #1
    Brandon Foster
    Reputation
    3,270
  • #2
    TransAm77
    Reputation
    2,330
  • #3
    Robert Yelenik
    Reputation
    1,770
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Cadillac CTS-V
1 listings starting at $38,388
Used Dodge Charger
39 Great Deals out of 645 listings starting at $4,888
Used Chrysler 300
42 Great Deals out of 516 listings starting at $4,999
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871
Used Cadillac Escalade
21 Great Deals out of 379 listings starting at $6,900
Used Cadillac DTS
12 listings starting at $7,999

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.