Question about 1999 Chevrolet Malibu

1 Answer

Have a 99 malibu...replaced motor..replaced intake gasket on motor before installing..everything went good..one problem now I have good great heat one day and no air, then the next day good air no heat.....? Also put new stat and water pump in the motor

Posted by on

Ad

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.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 3,074 Answers

You may want to flush you heater core:

the heater core is in the dash inside the engine. But open the hood and look on the firewall of the car. There should be 2 rubber hoses going into the firewall and into the car. If factory they will have spring clamps just like on the radiator hose. Remove both lines. Then get a hose and put it in one line and run the water until it comes out clear. Then do the same thing with the other side. Do this a couple of times. Then reconnect the 2 hoses and check the level of the radiator. Then start the car with the radiator cap off and wait a while for the thermostat to open and have the heater on so it will cycle through the whole system. Then top off as needed.

This should fix your problem Tim

Posted on May 26, 2011

  • johnc7458 May 26, 2011

    Thanks alot will definitely try this...

×

Ad

1 Suggested Answer

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

Ad

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 chevy malibu with a misfire in cylinder 1 and I have already replaced the coil packs and the spark plug on that cylinder but the miss fire continues. Any Help really need to get it fixed by...


If you have a 3,1 motor, there's a very good chance your lower intake manifold gasket is allowing coolant into cylinder 1 and keeping it from firing. Number 1 is right next to a coolant port, ant the 3.1/3,4's are very well known for intake gasket failure.

Sep 05, 2011 | 1997 Chevrolet Malibu

1 Answer

Antifreeze won't stay in coolant,don't see it in driveway and car over heats constantly.I have had the water pump changed,coolant reservoir changed,new thermostat and nothing works.Are there any more...


That series of malibu is notorious for bad head and intake gaskets which leak antifreeze into the lubrication and combustion areas. I fixed the girlfriend's by getting a motor out of a junkyard, paying someone to break it down and replace all gaskets then install it. Lasted a year and then we began again. Good luck. Google it if you do not believe me.

Nov 23, 2010 | 2001 Chevrolet Malibu

3 Answers

I have a 1999 chevy malibu with knocking noise ina 3.1l v6 motor.


Sounds like you didn't put the pushrods back in the proper locations. There are two different lengths in this engine and you may have one backwards

Apr 09, 2010 | 1999 Chevrolet Malibu

4 Answers

99 Chevy Malibu running hot


is electric radiator fan coming on? if not the relay or fuse is bad

Jan 16, 2010 | 1999 Chevrolet Malibu

2 Answers

My 2002 Chevy Malibu is overheating. I found that


If your car is equipped with a 3.1 or a 3.4 litre V6 and you have preformed all of the above listed work then I would have to say its the intake manifold gaskets. They commonly blow on these motors. Just a design flaw, nothing but replacing them when they leak can fix this. Also run a coolant pressure test on the system to check for minor things like a leak that you cant see from visual inspection. Hope this helps.

757Nate

Nov 21, 2009 | 2002 Chevrolet Malibu

3 Answers

Every week or two I have to add coolant. My low light comes on but cant find a leak. There are no spots on my driveway, but dont where the anti-freeze is going. Mike Salantai


the intake manifold gaskets on these are known to leak. the coolant leaks inside and runs into a cylinder and is burned up in the combustion process so you'd never see an external leak. i assume its a 3.1 or 3.4 v6 both have the same problem

Oct 03, 2009 | 1999 Chevrolet Malibu

1 Answer

Car overheats frequently i add plenty of 50/50 dex cool and water daily it still tends to over heat we have a new thermostat and water pump but there is a hose missing off of the air compressor would this...


If you have a 3800 motor check your intake manifold gasket these are the symptoms that my car exhibited untill the motor locked up because it had filled the cylinders with water.
The dex cool deteriorates the gasket and the plastic intake manifold.
Replace the intake manifold and gasket, flush the dex cool out of the motor and replace with the regular green coolant.

Jul 12, 2009 | 1999 Chevrolet Malibu

3 Answers

Leaking coolant at intake gasket area but not into oil


$400 is a very good price for it, very long process. Took my mechanic 6 hours on my 99 Malibu, have to remove the head. $700 for my malibu

Dec 02, 2008 | 1991 Chevrolet Corsica

Not finding what you are looking for?
1999 Chevrolet Malibu Logo

141 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...