Question about 1994 Chevrolet S-10 Blazer

1 Answer

Smoke coming out of vent when defoster is on 99 chevy blazer

Smoke is coming out of vent when defoster is on

Posted by on

  • luckiechris Feb 02, 2009

    it smells like antifreeze

  • luckiechris Feb 02, 2009

    How do i repair that

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,118 Answers

What does it smell like? antifreeze, burning wires, oil, no smell, here is my best guess, 1- heater core, 2- heater blower motor burning up, 3- engine oil, and 4- steam condensation, 5- a ghost.

Posted on Feb 02, 2009

  • ccn7 Feb 02, 2009

    heater core is leaking. replacement is only fix.

  • ccn7 Feb 02, 2009

    most all your major auto parts stores have web sites with instructions and diagrams to help you do this. the heater under dash has to be taken a part to replace heater core.

×

2 Suggested Answers

  • 5 Answers

SOURCE: smoke coming out of vent when defoster is on

I believe the problem you have is a leaking heatercore, I have not done one on a Blazer- Jimmy but will get to do it soon to mine ( 1998 Jimmy )it looks to me as though you have to access this from under the dash and inside the truck. If your more of a large type, like me, you might want to concider having your local mechanic do it as working under the dash and upsidedown could be a little uncomfortable. Hope this helps. Cornbread.

Posted on Feb 03, 2009

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 99 blazer 4x4 it is humming in he rear end we had the rear bearings n seals changed new diff cover new fluid and it is still humming what is it??? PLEASE HELP!!!


99 Blazer driving hum,noise - Blazer Forum - Chevy Blazer Forums

blazerforum.com > ... > Steering, Suspension & Drivetrain
Dec 31, 2007 - 99 Blazer 4x4 has constant noise-humming that occurs non-stop and increases and ... Sounds like it is coming from rearend but not 100% sure. 99 LT 4x4 Rear End Whine
Nov 5, 2013
7-5/8 or 8.5" ring gear?
Jan 16, 2012
99 Jimmy 4x4 humming noise
Dec 24, 2009
More results from blazerforum.com

Sep 30, 2015 | Cars & Trucks

1 Answer

Vent operation air is only coming out the defoster


check vacuum leak on hose on pass side of engine that supplies vacuum to HVAC unit

Feb 18, 2011 | 1999 Dodge Dakota

1 Answer

I have a 1999 chevy blazer with smoke coming out the vents when the defroster is on. What's the fix?


often that smoke is actually misty antifreeze from a leaking heater core. wipe a little of it up and sniff. sickly sweet smell it is heater core time.

Dec 13, 2010 | 2001 Chevrolet Blazer

1 Answer

Issues with 99 Chevy Blazer LS


check the exhaust manifold possible gasket,check flange gasket or check exhaust system for damage --cat converter smells like rotten eggs or if plugs up stalls vehicle and wont let start-----

Feb 13, 2010 | 1999 Chevrolet Blazer

1 Answer

Why wont my 99 chevy blazer temperature warm up?


You may have vapour lock in your heater lines. Start engine, put heat lever on high, disconnect one of the lines on your heater core, the one on the flow out side, & see if you have any air coming out. Once antifreese comes out stick line back on & retighten clamp. Make sure your cooling system is topped off. Also your water pump may not be functionihg to it's maximum. Take rad cap off cold & view flow rate. If inadequate you may have to replace the water pump. Good luck!

Dec 09, 2009 | 1999 Chevrolet Blazer

1 Answer

99 chevy blazer overheating


the most common problem is the plastic gaskets under the intake felpro makes a steel/rubber replacment

Sep 04, 2009 | 2001 Chevrolet Blazer

1 Answer

Smoke coming from vents on 2002 chevy s-10


The original GM design has a fair amount of thermal blanket material on the lower surface of the heater case, in the engine compartment to protect the plastic from the exhaust components. Check to see if this material is still in place after you had done the exhaust system upgrade.

Feb 24, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

Smoke coming out of vent when defoster is on


I believe the problem you have is a leaking heatercore, I have not done one on a Blazer- Jimmy but will get to do it soon to mine ( 1998 Jimmy )it looks to me as though you have to access this from under the dash and inside the truck. If your more of a large type, like me, you might want to concider having your local mechanic do it as working under the dash and upsidedown could be a little uncomfortable. Hope this helps. Cornbread.

Feb 02, 2009 | 1994 Chevrolet S-10 Blazer

Not finding what you are looking for?
1994 Chevrolet S-10 Blazer Logo

423 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

70365 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...