Question about Chevrolet Corsica
Let's hope the first fix is the right one!
You should have two heater hoses running from the engine to the heater core, which you cannot see under the hood.
Typically, the hoses are about 1 & 1/4 inch diameter, and black.
That part ( the heater core) is inside, under the dashboard, sort of behind the glove box.
The heater core is just on the other side of the firewall from the two hoses, which are usually "together" (means they are about an inch apart) where the hoses attach to the heater core through the firewall.
If the problem is coolant ( you can tell by the color and/or taste), you likely have a heater hose that is old and cracked and leaking.
Take a flashlight and look carefully, you should see sign of wetness around the ends of the heater hoses and maybe on the firewall.
Those hoses usually last about 10 years before needing replacement.
If you find one leaking, you should replace both of them, unless the other one has been changed recently.
If you change them, you'll need to drain the radiator coolant and the hoses and collect the coolant for reuse or disposal.
I would also put on new stainless-steel band clamps.
Remember when you put it all back together, you will need to "burp" the air out by running the engine with the heater on full for about 10 minutes at a medium speed to get the water pump to pump accumulated air out.
Posted on Jan 13, 2013
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.
Posted on Jan 02, 2017
Check in the very back of the cylinder head's by the fire wall, there's a coolant pipe that run's from one head to the other, it's hard to get to but with a mirro you can check it.
Posted on Jul 01, 2010
SOURCE: coolant leak 1991 mazda navajo
if you smell antifreeze ,and belive me youll know its antifreeze ,inside the car or the windshield will fog up when defrost is on ,you have bad heater core
Posted on Aug 26, 2008
SOURCE: Coolant leak
There is a hard line on the back side of the engine block and the hard line sometimes cracks. i would check that line and see if it is leaking. If is not that hard line check your heater core hoses.
Posted on Nov 07, 2008
There is a gasket between the interface of water pump housing and the engine mounting surface. if you have to change the gasket then replace the pump the whole thing cost only 40 bucks for the parts. Try to tighten the mounting bolt to see if it help. However, make sure where the leak is coming from, Sometimes, the leak from not tightened hose clamp causing a leak then it splashes onto some place else when the car moves. Attached here is a picture to show the gasket.
Posted on Dec 28, 2009
Tips for a great answer:
Oct 29, 2013 | 1991 Ford F150
Apr 19, 2011 | 1991 Chevrolet Corsica
Aug 18, 2010 | 1994 Chevrolet Corsica
Aug 12, 2010 | 1991 Cadillac Brougham
May 15, 2010 | 1991 Chevrolet Corsica
Dec 28, 2009 | 1991 Chevrolet Corsica
Dec 02, 2009 | 1991 Chevrolet Corsica
Sep 06, 2009 | 1991 Pontiac Sunbird
May 01, 2009 | 1991 Chevrolet Corsica
141 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: