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
101,665

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
64,550

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

  • Heat is acting up 2 Answers

    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?

    2011 Cadillac DTS Luxury FWD

    -

    Maintenance & Repair

  • where is the oil plug for cadillac 2011 dts 2 Answers

    where is the oil plug for cadillac sedan DTS

    2011 Cadillac DTS

    -

    Maintenance & Repair

  • why is my 06 dts shifting hard? 3 Answers

    my 06 caddilac dts is shifting hard and wont go into first 3rd on shifter is drive on column. i have checked transmission fluid and its not low. what could be causing this? has the northstar 4.6 v8 ...

    2006 Cadillac DTS Luxury I FWD

    -

    Maintenance & Repair

  • Why is the rear suspension high after keyed on in the air? 1 Answer

    2006 DTS was keyed on while in the air. Now the rear end is high, rides rough.

    2006 Cadillac DTS

    -

    Maintenance & Repair

  • Carpet in 2009 DTS trunk is soaking wet from water leak, what's the resolution? 1 Answer

    My 2009 DTS leaks midway in the trunk primarily on drivers side soaking the carpet and filling the spare tire well half full. I took it to Cadillac dealer for leak check and repair, they're leak exp...

    2009 Cadillac DTS FWD

    -

    Maintenance & Repair

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
5 Great Deals out of 52 listings starting at $2,990
Used Lincoln Town Car
2 listings starting at $9,995
Used Cadillac Escalade
19 Great Deals out of 443 listings starting at $5,931
Used Mercedes-Benz S-Class
22 Great Deals out of 195 listings starting at $6,500
Used Cadillac SRX
6 Great Deals out of 94 listings starting at $4,888
Used Cadillac STS
2 listings starting at $10,993
Used Chrysler 300
25 Great Deals out of 516 listings starting at $4,990
Used Chevrolet Impala
9 Great Deals out of 132 listings starting at $3,495
Used Cadillac CTS Coupe
1 listings starting at $19,495
Used Dodge Charger
32 Great Deals out of 836 listings starting at $3,500

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.