Heat is acting up

Asked by hux1 Dec 06, 2015 at 05:02 PM about the 2011 Cadillac DTS Luxury FWD

Question type: Maintenance & Repair

The heater and defroster will run me out of the car if I'm driving or can get the RPMs up over 1500 but as soon as I come to a stop everything starts blowing cold. What needs replacing?

2 Answers
101,585

KenF answered 8 years ago

Check your coolant levels, heater blowing cold is a sign of low coolant. Revving the engine might get some coolant to flow to heater but drops when at idle.

3 people found this helpful.
Mark helpful
64,520

firebird338 answered 8 years ago

If coolent level is good try flushing system and also clean fins on radiator or A.C condenser if it sets in front of radiator. If clogged with dirt and bugs could be stopping air flow.

4 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Cadillac DTS Questions

CarGurus Experts

  • #1
    connielou
    Reputation
    2,800
  • #2
    boggs79
    Reputation
    1,960
  • #3
    tenspeed
    Reputation
    1,750
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Cadillac CTS
4 Great Deals out of 59 listings starting at $5,995
Used Cadillac Escalade
17 Great Deals out of 492 listings starting at $5,000
Used Lincoln Town Car
3 listings
Used Mercedes-Benz S-Class
18 Great Deals out of 204 listings starting at $6,500
Used Chevrolet Impala
8 Great Deals out of 133 listings starting at $3,495
Used Cadillac STS
2 listings starting at $8,888
Used Chrysler 300
25 Great Deals out of 536 listings starting at $6,898
Used Cadillac SRX
5 Great Deals out of 89 listings starting at $4,888
Used Buick LaCrosse
28 listings starting at $7,495

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.