# Cold 97 Chevrolet Blazer **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [December 29, 2007, 11:31pm UTC](https://community.cartalk.com/t/cold-97-chevrolet-blazer/8814 "2007-12-29T23:31:59Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Arnold](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@Arnold](https://community.cartalk.com/u/Arnold)\ **Post date:** [December 29, 2007, 11:31pm UTC](https://community.cartalk.com/t/cold-97-chevrolet-blazer/8814/1 "2007-12-29T23:31:59Z")
Vehicle will not get warm, need help. I have changed the water pump. Tested and changed the thermostat. Changed radiator hoses, flushed system, bled the air out. The vehicle gets warm when you drive it on the highway. ---
**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\ **Post date:** [December 30, 2007, 12:04am UTC](https://community.cartalk.com/t/cold-97-chevrolet-blazer/8814/2 "2007-12-30T00:04:05Z")
Co-incidence, or karma? Same problem on the 1997 Chevy S-10 in “No heat from heater during idle”! Do you think that some of that might be pertinent to your vehicle? ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [December 30, 2007, 12:48am UTC](https://community.cartalk.com/t/cold-97-chevrolet-blazer/8814/3 "2007-12-30T00:48:24Z")
Do the heater hoses get warm? When you say the “vehicle gets warm when you drive it on the highway” do you mean the cabin or the engine? ---
**Author:** ![peachyjohn](https://avatars.discourse-cdn.com/v4/letter/p/9de053/32.png) [@peachyjohn](https://community.cartalk.com/u/peachyjohn)\ **Post date:** [December 30, 2007, 4:17pm UTC](https://community.cartalk.com/t/cold-97-chevrolet-blazer/8814/4 "2007-12-30T16:17:13Z")
I had this problem with my 1998 Blazer. The problem was that the heating coil was blocked because of the dex-cool that is used in those vehicles. The best solution is to do a coolant flush and put in regular antifreeze. I have not had a problem since.