engine coolant temperature gauge fluctuation?

skywhr · Postby **skywhr** » Sat Jan 10, 2015 6:08 am

Engine coolant temperature gauge fluctuates from regular to almost maximum then back to regular while driving...?

eieio · Postby **eieio** » Sat Jan 10, 2015 8:50 am

skywhr wrote:Engine coolant temperature gauge fluctuates from regular to almost maximum then back to regular while driving...?

check the temp sensor sending unit

skywhr · Postby **skywhr** » Sat Jan 10, 2015 10:40 am

Is the sensor easily found and replaced?

eieio · Postby **eieio** » Sat Jan 10, 2015 11:11 am

skywhr wrote:Is the sensor easily found and replaced?

I don't personally know, but the info should be in our "on-board" service manual:

http://www.thenissanpath.com/filelib/R5 ... ce/fwd.pdf

Postby **smj999smj** » Sat Jan 10, 2015 11:55 am

On VQ engines, it should be in the coolant transfer pipe at the back of the engine. You'll have to look behind the engine from the top to see it.

skywhr · Postby **skywhr** » Sun Jan 11, 2015 8:20 am

It appears that I have a leak in my radiator somewhere...

eieio · Postby **eieio** » Sun Jan 11, 2015 8:37 am

skywhr wrote:It appears that I have a leak in my radiator somewhere...

is your coolant level low?
any visible leaks?
if yes and no, better start checking into the possibility of coolant contamination of the transmission fluid

skywhr · Postby **skywhr** » Sun Jan 11, 2015 10:33 am

There is antifreeze on the driveway and drips on the bottom of the radiator. I drained the radiator and it doesn't appear to be contaminated. So either a small leak in radiator or the cap?

The radiator is impossible to remove!!!

eieio · Postby **eieio** » Sun Jan 11, 2015 10:40 am

skywhr wrote:There is antifreeze on the driveway and drips on the bottom of the radiator. I drained the radiator and it doesn't appear to be contaminated. So either a small leak in radiator or the cap?

The radiator is impossible to remove!!!

be sure to check the transmission fluid for contamination
coolant may leak into the trans fluid without showing any contamination of the coolant still in the system
some have experienced external leaks from the radiator
this should not be hard to spot
the radiator is certainly possible to remove, but it is rather buried
if you do some searches in this Forum, you will find the procedure

skywhr · Postby **skywhr** » Sun Jan 11, 2015 10:45 am

Transmission fluid is nice and red.

Radiator is super frustrating.... I will try to find the procedure

I've removed all the brackets and bolts but the ac condenser and radiator are still trying to come out together...

eieio · Postby **eieio** » Sun Jan 11, 2015 11:18 am

skywhr wrote:Transmission fluid is nice and red.

Radiator is super frustrating.... I will try to find the procedure

I've removed all the brackets and bolts but the ac condenser and radiator are still trying to come out together...

this should help..........
http://www.thenissanpath.com/viewtopic. ... f874368c41

skywhr · Postby **skywhr** » Sun Jan 11, 2015 11:41 am

It's out. Picking up new radiator now

skywhr · Postby **skywhr** » Mon Jan 12, 2015 5:03 am

Now does anyone know how much transmission fluid I need to add?

Postby **disallow** » Mon Jan 12, 2015 7:28 am

shouldn't be more than a quart.

Postby **smj999smj** » Mon Jan 12, 2015 2:00 pm

If you are just topping off the fluid, it should be less than a quart. If you are draining and filling the transmission, it will be about a gallon. Make sure the ATF you use is recommended for Nissan-matic "S" or "J" applications. Castrol Multi-import ATF is the same thing as Nissan Type "J." I get a gallon jug of Valvoline Max-life ATF when I service mine.

engine coolant temperature gauge fluctuation?

engine coolant temperature gauge fluctuation?

Re: engine coolant temperature gauge fluctuation?

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