Engine temp question for you Northern Folk

[yodawill2000]

We just had a nasty cold snap here in the dfw area and Ive noticedMy temp gauge never gets above 2 or 3 ticks from the bottom.No where near where it is on a warmer day. A little below middle.

Is that normal or do I have a stuck open/Missing Thermostat ??

Thank gawd for the heated sets

[Q45tech]

Thermostats usually degrade after 3-4 years and should be replaced.

The mode is as you describe failure to heat up fast as the rubber surreound has worn and coolant bypasses the element..............ONLY USE OEM NISSAN THERMOSTATS never copies!

[yodawill2000]

Thanks Q45tech

Will do.

[yodawill2000]

Never even looked to see where the thermostat is on the J30 .Is it one of those PITA jobs ??Im used to old chevys and it being a 10 minute job

[Gerardjg]

Thank gawd for the heated sets

I Agree used mine for the first time the other Day It was in the 40s but my coolant temp stayed the same as on a 90 degree day

[yodawill2000]

Somebody ??Anybody ??Is the T Stat a beotch on our J's ??Been to cold for me to even pop the hood. lol

I dig 105F but this low 30's shizz locks me up.But I need to handle this.She's running super rich the whole way to work.20 mile drive.

[ttinfinitiM30]

dont b so sure u need one. im from PA and gotta say durring the winter some cars dont really heat up till after a long hall down the highway. not saying that theres no heat but unless ur runnig the car for a while it wont heat up.

[elan]

in Siberia we sometimes close the air intake i front and put some warm material under the hood during winter time so the engine warms up faster and stays warm.

[yodawill2000]

Im leaning towards Techs advice.If its 40 something all is good .If its freezing my gauge barely moves at all.And I have a 20 mile commute on the highway.

[95-J30tt]

improperly functioning coolant temperature sensor causes the engine to run rich, clean the contact, and i hope that this would fix one problem, if it does not, then replace the sensor, i think it is about 30$ from the dealer, here is the location of the sensor



now to access the thermostat, it takes longer than the chevys, you have to remove the fan to clear up space to reach it, then remove both aluminum coolant hoses to get to the thermostat (i cant remember the bolt sizes, i think they were a hex, but i have them in the timing belt replacement write-up), here is the location of the thermostat

[yodawill2000]

Thanx bud ..I doubt its the sensor because the temp gauge stays way low.And on a warmer day it reads accordingly.

[Q45tech]

2 sensors one for inside gauge [very inaccurate] and one for ecu [very accurate]. Nether fail frequently.

Whereas thermostat out sell the sensors by 200:1.

We always REQUIRE a new thermostat and water pump and misc when we sell a new timing belt replacement. Never frequent enough but better than nothing.

[J30Guy612]

Hey 95-J30t

Do you have a timing belt replacement write up on this site?

I searched, and checked the how-to's but couldnt find it.

Do you have a link?

[95-J30tt]

e-mail me and i'll send it to you, my internet provider doesnt give me sufficient space to load the file to the net....

i'll send it to wes (moderator) via e-mail too, i hope that it will make it's way to this site

[yodawill2000]

Heres one for the ZSame engine me thinx

http://www.ttzd.com/tech/timingbelttech.html

[gam30]

spring 55 - 75 degrees my m30 temperature line is just below centersummer 75-90 : temp. line just above centerheat wave last year: about two ticks below top marking w/wo acfall: same as springwinter: about two ticks above bottom line.it does vary with outside temp. and drive speed.i'm city driving.