Coolant leak - Infamous Nissan

1lownismo97 · 08-24-2021, 07:34 PM

Sup guys it’s been awhile.
Well had a coolant leak awhile back so I parked the truck finally got around to changing the thermostat and gasket also change the water pump with a new gasket

Yet even before I start the truck when I pour coolant into the radiator I still have coolant leaking onto the ground it is very hard to tell where it’s coming from but it is underneath the thermostat somewhere but I’m pretty sure it’s not from the thermostat itself as I’m confident in the seal that I made
I’ve read somewhere about freeze plugs could that be an issue and where my coolant leak is coming from?

97 Nissan pick up 2wd

91nissan94 · 08-24-2021, 09:15 PM

Look at the u shaped hose behind the thermostat housing. Just a thought.

1lownismo97 · 08-24-2021, 09:15 PM

Alright thank you man I’ll check it out

89'HBV6 · 08-24-2021, 10:35 PM

Yea, freeze plugs are there for a reason. Go ahead and look into this. Keep us posted.

Cusser · 08-25-2021, 02:35 PM

Might be worthwhile to get a free loaner cooling system pressurizer kit from Autozone or similar.

1lownismo97 · 08-25-2021, 08:26 PM

Yeah I’ll check the U shaped toes first and if that doesn’t work I will look into using the pressure system

cadillacdude1975 · 09-01-2021, 05:13 AM

A pressure tester and UV dye with the black light will tell the tale.

08-24-2021, 07:34 PM	#1
1lownismo97 Join Date: Dec 2018 Location: New Orleans Age: 30 Posts: 57 Vehicle: 1997 Nissan hardbody, 2013 gmc sierra Thanks: 27 Thanked 2 Times in 2 Posts	Coolant leak Sup guys it’s been awhile. Well had a coolant leak awhile back so I parked the truck finally got around to changing the thermostat and gasket also change the water pump with a new gasket Yet even before I start the truck when I pour coolant into the radiator I still have coolant leaking onto the ground it is very hard to tell where it’s coming from but it is underneath the thermostat somewhere but I’m pretty sure it’s not from the thermostat itself as I’m confident in the seal that I made I’ve read somewhere about freeze plugs could that be an issue and where my coolant leak is coming from? 97 Nissan pick up 2wd Last edited by 1lownismo97; 08-24-2021 at 09:17 PM.

08-25-2021, 02:35 PM	#5
Cusser Join Date: Aug 2016 Location: Hot Arizona Posts: 792 Vehicle: 2004 Frontier Thanks: 0 Thanked 145 Times in 128 Posts	Might be worthwhile to get a free loaner cooling system pressurizer kit from Autozone or similar. __________________ 2004 Frontier King Cab (2WD, 5-speed, 4-cylinder, 105K), 1998 Frontier regular cab (2WD, 5-speed, 4-cylinder 253K), 1988 Mazda B2200 (2WD, 5-speed, 4-cylinder, 220K), 1971 VW Convertible (140K), 2005 Yukon (215K), 1970 VW (260+K)

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08-24-2021, 09:15 PM	#2
91nissan94 Join Date: Sep 2008 Location: Crescent City FL Posts: 1,749 Vehicle: 91nissan hb Thanks: 106 Thanked 254 Times in 225 Posts	Look at the u shaped hose behind the thermostat housing. Just a thought.

08-25-2021, 08:26 PM	#6
1lownismo97 Join Date: Dec 2018 Location: New Orleans Age: 30 Posts: 57 Vehicle: 1997 Nissan hardbody, 2013 gmc sierra Thanks: 27 Thanked 2 Times in 2 Posts	Yeah I’ll check the U shaped toes first and if that doesn’t work I will look into using the pressure system

09-01-2021, 05:13 AM	#7
cadillacdude1975 The Gear Jammer Join Date: Apr 2013 Location: Chattanooga, TN Age: 50 Posts: 10,686 Vehicle: 87 VG33 Pathfinder SE 4x4 & 87 D21 SE Thanks: 459 Thanked 1,403 Times in 1,268 Posts	A pressure tester and UV dye with the black light will tell the tale.