Why heat is not blowing hot as it should be

Asked by Will3410 Oct 26, 2017 at 09:02 AM about the 2003 Chevrolet Blazer LS 4-Door 4WD

Question type: Maintenance & Repair

Why the heat is not blowing hot as it
should be

21,865

Gary answered 6 years ago

There are several things that can cause this such as low coolant level, bad thermostat, clogged heater core, heater controls not working properly, etc. You need to check these items one at a time to determine what may be causing the problem.

Mark helpful

Your Answer:

Why heat is not blowing hot as it should be 1 Answer

Why the heat is not blowing hot as it should be

2003 Chevrolet Blazer LS 4-Door 4WD

-

Maintenance & Repair
When temp control fan is off, or on, there is hot air blowing through the floor vents, can I fix it cheaply? 1 Answer

On my 04 Blazer, whether the fan is off or on, and no matter what setting, floor, floor and panel, or dash....there is hot air blowing through the floor vent. Even if the A/C is on, it's a mix of col...

2004 Chevrolet Blazer LS 4-Door 4WD

-

Maintenance & Repair
Is It possible for water pump to be not working? 5 Answers

When the radiator is open with the engine on I can see coolant very slowly circulating thus resulted to high temperature reading and coolant is reduced in quantity inside its reservoir after 100 degr...

1996 Chevrolet Blazer LS 4-Door 4WD

-

Maintenance & Repair
I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control module. We coming to a stop sign it will stall and sometimes when just sitting still. Sometimes it will start right back up and other times it takes several tries. I also have the oxygen sensor on order and it should be here tomorrow. Fuel pressure tested perfectly. No black smoke, no smell of rotten eggs or the cat glowing red. The only code that comes up is PO420. 4 Answers

I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control m...

1999 Chevrolet Blazer 4-Door 4WD

-

Maintenance & Repair
why does my blazer not start when it is damp, we have to plug it in for a few minutes, then away she goes. Don't understand why 5 Answers

We have been trying to fix this problem for a couple of years now, our mechanic is at a loss as what the cause is.

2002 Chevrolet Blazer LT 4-Door 4WD

-

Maintenance & Repair

Own this car?

Share your experience with others.

2003 Chevrolet Blazer

Write a car review

Review another car

Used Chevrolet Trailblazer

388 Great Deals out of 20,701 listings starting at $2,300

Used Chevrolet Tahoe

1,050 Great Deals out of 19,771 listings starting at $2,500

Used Jeep Grand Cherokee

2,618 Great Deals out of 48,417 listings starting at $800

Used Chevrolet Silverado 1500

4,097 Great Deals out of 131,630 listings starting at $2,900

Used Ford Explorer

2,232 Great Deals out of 64,069 listings starting at $1,000

Used Toyota RAV4

2,000 Great Deals out of 29,696 listings starting at $1,999

Used Toyota 4Runner

1,135 Great Deals out of 19,338 listings starting at $3,199

Used Dodge Durango

736 Great Deals out of 20,219 listings starting at $3,499

Used Honda CR-V

2,082 Great Deals out of 42,026 listings starting at $1,399

2024 Chevrolet Blazer For Sale

17 Great Deals out of 7,888 listings starting at $26,795

2023 Chevrolet Blazer For Sale

63 Great Deals out of 1,183 listings starting at $24,357

2022 Chevrolet Blazer For Sale

98 Great Deals out of 1,214 listings starting at $20,243

2021 Chevrolet Blazer For Sale

315 Great Deals out of 3,448 listings starting at $16,790

2020 Chevrolet Blazer For Sale

101 Great Deals out of 1,141 listings starting at $15,988

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.

Why heat is not blowing hot as it should be

1 Answer

Your Answer:

Own this car?

Share your experience with others.

Shortcuts

Search Chevrolet Blazer Questions

CarGurus Experts

Know more, shop wisely

Related Models For Sale

Used Cars for Sale

Why heat is not blowing hot as it should be

1 Answer

Your Answer:

Related Questions