Just got first squarebody, joined forum because I need help!

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emtrichel

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Location
Laguna Niguel, CA
First Name
Eric
Truck Year
1979
Truck Model
1500
Engine Size
350
I just got my first squarebody, a 1979 Chevy 1500. Its in.. decent shape. Seller disclosed a coolant leak, and pointed out that it was coming from a crack where the lower hose (from radiator to engine) meets the engine. After overheating, parking, and letting it cool, I added a gallon of coolant - to watch it completely pour out from.. somewhere. It is not leaking from the crack from what I can tell. I will replace that hose - but if the overheating/leaking continues, I would be at a loss on where to even start.
 

Preston

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Mechanicsville VA
First Name
Preston
Truck Year
1983
Truck Model
k10
Engine Size
350
Welcome to GMSB from Virginia

Post a picture of your truck, leak we will help you get it fixed
:grd:
 

1987 GMC Jimmy

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Mississippi
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Jesse
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1987
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V1500 Jimmy
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350
Get some leak dye for your radiator and a UV light. Autozone sells it.
 

1973c10

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Don
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C10
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454
:welcome:
 

eskimomann209

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Modesto
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Marcus
Truck Year
1973
Truck Model
C10
Engine Size
5.3
If the truck doesn’t exist, then how too can the leak?


Translation
Pics or it doesn’t exist !!!
 

C10MixMaster

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Kingman AZ
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Ben
Truck Year
1977
Truck Model
C10 BIG10
Engine Size
ZZ4 350
I just got my first squarebody, a 1979 Chevy 1500. Its in.. decent shape. Seller disclosed a coolant leak, and pointed out that it was coming from a crack where the lower hose (from radiator to engine) meets the engine. After overheating, parking, and letting it cool, I added a gallon of coolant - to watch it completely pour out from.. somewhere. It is not leaking from the crack from what I can tell. I will replace that hose - but if the overheating/leaking continues, I would be at a loss on where to even start.

coming from that area there are a few possibilities

lower hose if that's leaking it should be obvious.
water pump use a mirror to view the underside of the water pump. there is a weep hole under the pulley if coolant leaking there the pump is bad'
other possibilities would include a freeze plug head gasket or intake manifold.

my moneys on the water pump
 

Old77

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Kansas City, Mo
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Jacob
Truck Year
1977/1990/1991
Truck Model
C10 longbed/R1500 Burb/R3500 Dually
Engine Size
350/350/454
:welcome:
 

eskimomann209

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Modesto
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Marcus
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1973
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C10
Engine Size
5.3
I thought you meant because there was no 79' 1500....
Is true. Much like when people have an 89 c10.
I tend to let them go for those mishaps. Besides ..... he’s (she’s) still new
 

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