How long does it take to replace a heater core in a 1989 Pontiac Sunbird?
Depending on your mechanical experience,I would estimate that you should be prepared for a 2-3hr task.I recently removed one from a parts car,all total I believe it took me approx.1 1/2 hrs,mind you I had'nt done one in a Sunbird before.It requires removal of the bottom dashboard enclosures,the core is located approx. in the middle of the underside of the dash behind a plastic box that will need to have the cover removed as well,then there are 2 retaining bands with 2 screws ea. holding the core in its place.From under the car(front raised and on jackstands) you can easily access the two hose hookups that run from core to engine,these will no doubt be sealed on quite tight,be prepared by having replacement hoses ready,as you wont always get a clean removal without cutting. Syraight forward task,just alot of agilty required by the one doing the task as there is limited work space,and need to be a contortionist at times.Overall,its a job that the average backyard mechanic can perform with a little patiencce,GoodLuck
You do not reset the check engine light on that year of sunbird, it will go off automatically whenever you fix whatever problem the computer is reading. Most likely it is one of your sensors that is malfunctioning. Check your Air Intake Temp Sensor (AIT) and your Oxygen Sensor (O2) as they are the most likely culprits.
What would cause a 1989 sunbird 2.0lL K engine to a have coolant leak coming from drain plug in firewall Not leaking inside coolant coming from rubber elbow connected through firewall?
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Why does heater defrost vent not open on a 1989 Sunbird and cold air blow from dash vents but no air blows from heater defrost vents and where are the enter and exit hoses for the heater coil?
I don't know why the vent would not open for the defrost, but it may be related to the fact that your heater core is blown. If your getting nothing but cold air out of the vents when the heat is on, your core is finished and if the core is finished then it is likely related to your vent not opening/switching. Something''s wrong with your heating either way.