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Locating a heater core is easy, removing is not. The heater core will have two hoses going through the firewall to it. It will me mounted inside that big black plastic box underneath the dash on the passengers side of the vehicle. They mount in many different ways but you need to open it up to get to it.

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โˆ™ 2015-07-15 21:30:53
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Q: How do you locate the heater core on a 1991 Buick Skylark?
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Related Questions

What will keep the heat in a 1991 Buick Skylark from working?

Probably a worn-out or clogged heater core.

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The thermostat on a 1991 Buick Skylark is located near the engine. To find the thermostat, follow the top radiator hose directly to the thermostat.

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I am having the same problem and I WA told it was the heater core. I am going to give that a shot. Autozone has them for $30.00

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If it has a coolant tank, that's the "cap".

How do tons does a 1991 Buick Skylark weigh?

I'd say about 2.5 tons.

Where is the radiator plug in your 91 Buick Skylark?

You can find the 1991 Buick Skylark radiator drain plug on the bottom of the radiator. The radiator drain plug will be in the center of the radiator bottom.

Where is the PCV valve located on a 1991 Buick Skylark?

The PVC valve for a 1991 Skylark should be located on the top of the valve cover. It is a plug in type, twist and pull to remove.

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Under dash with fuses. Very hard to see.

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a round one that you can order online

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Where is the fuel filter located on a 1991 Buick Skylark?

I believe that one is under the car near the gas tank.

Is the oil filter in a 1991 Buick Skylark the same as the 1990?

Probably. An auto store would know for sure.

What is the spark plug gap for a 1991 buick skylark?

As far as I've read (check dealer for accuracy) 4cyl 2.5L is .040

Where is the fuel filter located on a 1991 Buick Skylark with a V6 engine?

On your 1991 BUICK SKYLARK, the FUEL FILTER is: UNDER VEHICLE, CENTER, BELOW REAR SEATING AREA, REAR PASSENGER SIDE OF FUEL TANK, MOUNTED IN FUEL LINE You can find this stuff free at under repair info, component location.

How do you open a locked 1991 Buick Skylark driver side door when the key and the manual lock button won't open it?

break the windows

How do you change the heater core on a 1991 Buick Riviera?

Try the repair tips on the Autozone web site.

Why does the dual-zone front only heater only put out heat on the passenger side in a 1991 Buick Regal?

may be your heater control valve

What would cause a 1991 Buick Skylark to have rough shifting automatic transmitionand then not even start?

Try changeing the fuel filter,I had the same problem and it helped.

Where is the alternator for a 1991 Buick Skylark?

It's right in the front and off a little to the passenger side. Big round thing with a belt running to it and a fan. You can't miss it.

What would cause the heat in a 1991 Buick Skylark not to get warm?

Thermostat possibly stuck open. Another possibility is the heater core is clogged. I would recommend you perform a complete cooling system service. Drain and flush the system with the heater set to high. Replace the thermostat, and install a 50/50 mix of coolant and distilled water. Bleed all air from the system.

Where is turn signal flasher located on 1991 Buick Skylark?

It should be right there on the fuse box. If you still can't find it, try calling a service center at a GM dealer.