Car Won't Warm Up - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Asmar · 02-14-2018, 07:04 AM

Stock '95 S14. Car won't warm up. I thought it was the thermostat (as that's almost always the case in these situations) so I replaced it with an OEM Nissan thermostat. Car still won't warm up. Am I overlooking something else that's preventing the car from warming up? Searched around and couldn't find an answer.

*Agamemnon* · 02-14-2018, 09:00 AM

Is the heater blowing hot air?

If the thermostat is indeed operating as intended it may be a faulty temp sensor. There are two of them. one for the gauge and one for the ECU to help control fuel ratios. If you car runs rich check both.

92SEric240sx · 02-15-2018, 06:51 PM

Temp sensor for the gauge in the block- probably went out on you

jedi03 · 02-16-2018, 09:17 AM

use laser thermometer to check actual running temp, if hot replace your sensor, if not check the sensor...if not hot thermostat or possibly fan clutch

jimcfl · 04-21-2018, 06:41 AM

Could also be a bad ground. Sometimes brand new thermostats stick open, but an open thermostat will still let the car warm up, it just takes a lot longer.

tuzzio · 04-21-2018, 08:03 AM

Running a stock gauge or after market?

Never trust an s-chassis oem coolant temp gauge.

Pandemonium · 04-21-2018, 09:34 AM

are you getting heat? hows the coolant level? is the air all bled out?

02-14-2018, 07:04 AM	#1
Asmar Zilvia Junkie Join Date: Jan 2009 Location: Seattle, WA Age: 32 Posts: 325 Trader Rating: (1) Feedback Score: 1 reviews	Car Won't Warm Up Stock '95 S14. Car won't warm up. I thought it was the thermostat (as that's almost always the case in these situations) so I replaced it with an OEM Nissan thermostat. Car still won't warm up. Am I overlooking something else that's preventing the car from warming up? Searched around and couldn't find an answer. __________________

02-15-2018, 06:51 PM	#3
92SEric240sx Zilvia Addict Join Date: Aug 2006 Location: The VA Posts: 620 Trader Rating: (32) Feedback Score: 32 reviews	Temp sensor for the gauge in the block- probably went out on you __________________ RELAX BRO!!!!

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02-14-2018, 09:00 AM	#2
Agamemnon Premium Member Join Date: Sep 2003 Location: Lake Stevens, WA Age: 38 Posts: 2,585 Trader Rating: (20) Feedback Score: 20 reviews	Is the heater blowing hot air? If the thermostat is indeed operating as intended it may be a faulty temp sensor. There are two of them. one for the gauge and one for the ECU to help control fuel ratios. If you car runs rich check both.

02-16-2018, 09:17 AM	#4
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,786 Trader Rating: (8) Feedback Score: 8 reviews	use laser thermometer to check actual running temp, if hot replace your sensor, if not check the sensor...if not hot thermostat or possibly fan clutch

04-21-2018, 06:41 AM	#5
jimcfl Join Date: Apr 2018 Location: Nowhere Posts: 22 Trader Rating: (0) Feedback Score: 0 reviews	Could also be a bad ground. Sometimes brand new thermostats stick open, but an open thermostat will still let the car warm up, it just takes a lot longer.

04-21-2018, 08:03 AM	#6
tuzzio Nissanaholic! Join Date: Oct 2013 Location: Western Mass. Posts: 2,254 Trader Rating: (3) Feedback Score: 3 reviews	Running a stock gauge or after market? Never trust an s-chassis oem coolant temp gauge.

04-21-2018, 09:34 AM	#7
Pandemonium Join Date: Apr 2018 Location: Richmond Age: 30 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	are you getting heat? hows the coolant level? is the air all bled out?