Car over heating and leaking yellow-ish brown fluid

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
brendanl96
Posts: 18
Joined: Mon Apr 16, 2012 6:18 pm
Car: 1990 300zx 2+2

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I have a 1990 300zx 2+2 and I was driving my car like normal and i looked at my temp gauge and noticed it was getting high..very high like very close to the top so I got home and let my car cool off and went to go check and noticed a yellow-ish brown fluid leaking in front of my drivers side wheel. I couldn't tell where it was coming from. Can someone help me out please?


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nissangirl74
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Posts: 13910
Joined: Sat Jan 17, 2009 1:15 pm
Car: 2014 Xterra Pro4X, '12 Titan 4x4, '98 240sx, '89 Pao, '77 620, '72 240Z w/RB25, '68 510, '67 WRL411, '67.5 SPL 311, '63 Bluebird, '63 NL320

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That's coolant. The reason it is yellowish-brown is that it hasn't been flushed. Depending on what part of the country you're in, this should be done annually. Drain and flush your system, replace any hoses that have split or dry rotted. Take a look at your thermostat and the gasket too, just for the heck of it. You should be good to go after that. Good luck!

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t.mcginley.jr
Posts: 1547
Joined: Fri Jun 01, 2012 5:50 am
Car: 2002 Nissan Altima SE 3.5
1990 Nissan 300ZX NA 2+0
1966 Ford Mustang
Location: New Jersey, USA

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Either the radiator itself has a leak or one of the coolant hoses. There's 2 big coolant hoses coming off the radiator and then some smaller ones throughout the engine bay. It would be helpful if you could locate whereabouts its coming from. You might just need a new radiator


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