Coolant temp gauge problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

arian23 · 05-08-2007, 02:37 AM

I have a 96 240 and I have been having this problem with my coolant temp. sensor. When I accelerate or go full throttle the temp gauge goes down as if its getting colder. I dont know why it does this but its weird. Has anyone else ever had this problem? It kinda twitches. What makes it do this?

Gramentz · 05-08-2007, 08:53 AM

You're for sure throwing a code 13? Maybe there's some sort of electrical short or something, or your sensor is faulty? Or the system isn't bled?

koukimonster139 · 05-08-2007, 09:44 AM

maybe cause when you accelerate it turns the water pump faster which recirculates cooler coolant over the sensor.

that or maybe you have a faulty sensor/wiring

projectRDM · 05-08-2007, 09:47 AM

Or a huge air pocket.

Big Bronze Rim · 05-08-2007, 09:51 AM

Quote:

Originally Posted by R240NA

Or a huge air pocket.

That probably would be my guess as well. Try bleeding the system again before tearing out your hair looking for wiring faults.

arian23 · 05-08-2007, 11:17 AM

Should I put the car on an incline to bleed it?

jrmiller84 · 05-08-2007, 01:47 PM

Just run it 15-20 minutes with the radiator cap or bleeder screw off and the heat on full blast in the car. Shouldn't need to be on an incline, we don't have those in Florida.

arian23 · 05-08-2007, 02:12 PM

good shit! imma do it later on when the its cooler outside. So Cal is blazing right now!

05-08-2007, 02:37 AM	#1
arian23 Zilvia Member Join Date: Jun 2005 Location: San Mateo CA/Northridge, CA Age: 40 Posts: 186 Trader Rating: (0) Feedback Score: 0 reviews	Coolant temp gauge problem I have a 96 240 and I have been having this problem with my coolant temp. sensor. When I accelerate or go full throttle the temp gauge goes down as if its getting colder. I dont know why it does this but its weird. Has anyone else ever had this problem? It kinda twitches. What makes it do this?

05-08-2007, 08:53 AM	#2
Gramentz Leaky Injector Join Date: May 2006 Location: Florida Posts: 106 Trader Rating: (0) Feedback Score: 0 reviews	You're for sure throwing a code 13? Maybe there's some sort of electrical short or something, or your sensor is faulty? Or the system isn't bled? __________________ Fully Built

05-08-2007, 09:44 AM	#3
koukimonster139 Zilvia FREAK! Join Date: Jan 2006 Location: Birmingham, AL Age: 38 Posts: 1,379 Trader Rating: (0) Feedback Score: 0 reviews	maybe cause when you accelerate it turns the water pump faster which recirculates cooler coolant over the sensor. that or maybe you have a faulty sensor/wiring __________________ ho ha ho chi chi

05-08-2007, 01:47 PM	#7
jrmiller84 Zilvia FREAK! Join Date: Jul 2006 Location: Gainesville, FL Age: 40 Posts: 1,021 Trader Rating: (2) Rides Gallery: jrmiller84 Feedback Score: 2 reviews	Just run it 15-20 minutes with the radiator cap or bleeder screw off and the heat on full blast in the car. Shouldn't need to be on an incline, we don't have those in Florida. __________________ BitDestroyer.com

05-08-2007, 09:47 AM	#4
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Or a huge air pocket.

05-08-2007, 11:17 AM	#6
arian23 Zilvia Member Join Date: Jun 2005 Location: San Mateo CA/Northridge, CA Age: 40 Posts: 186 Trader Rating: (0) Feedback Score: 0 reviews	Should I put the car on an incline to bleed it?

05-08-2007, 02:12 PM	#8
arian23 Zilvia Member Join Date: Jun 2005 Location: San Mateo CA/Northridge, CA Age: 40 Posts: 186 Trader Rating: (0) Feedback Score: 0 reviews	good shit! imma do it later on when the its cooler outside. So Cal is blazing right now!