GTST in the cold

[Skym]

JohnZ32, just takes fitting exhaust to upset tune on factory ECU startup tables. Drycell battery is worth the $$$. Can save up to 14kg (depends on brand of battery), get better cold starts. Normal battery weighs something like 20kg. Get a slight performance gain (power to weight) for not much $$$.

I think that servo / flap thing is what I'm talking about. It was partly set to hot on my car, so wasn't cooling enough when set too lowest setting on aircon control. I've heard of them getting stuck, etc and need lubing, fixing, etc.

On R32, powersteering rack in front and HICAS rack in rear use the same powersteering pump (HICAS uses rear of powersteering pump) in engine bay and has a solenoid next to battery that directs fluid to rear of car to turn rear wheels. From what I understand, this solenoid is the cause of heavy steering, as HICAS ECU controls this solenoid. So if HICAS ECU plays up, so does solenoid. At least, that's how I understand it. Also there's another solenoid at rear of car, near rear wheels.

On R33 the rear and front are separate systems. Rear HICAS rack is electric driven, front rack runs off powersteering pump. It's common to use R33 pump or non HICAS R32 GTS pump when removing HICAS properly.

[boomer3]

Very interesting, I had the exact same problem today. My gtr was fully warmed up after about 10 mins driving, (-18 out).. The oil temp was above 70 and coolant temp at full, but I wasn't getting any heat from the vents! I fiddled around with the climate control, putting it up to FH and high fan speed, but still cold air. It took a total of about 30 mins for the heat to start blowing through the vents. Thats a total of 20 mins of no vent heat while there was full engine temp! Confusing to say the least. It must be in the vent control system or something. It's also frustrating that the venting system is pretty shotty overall, it must leak air like crazy, even on full fan setting it seems that the air doesn't blow very strong. It would be nice to get down to the bottom of the climate control issues here.

[Nismo_line]

boomer your winter driving your line in winnipeg? arnt you worried about the rust

[dundoot]

Ok it def sounds like the same problem I was having now, it's the air con/ heater control servo... It's just needs to be re soldered... It has little gears inside that could get stuck but my bet is on the connections.

[boomer3]

Hmm good call, I will first run the climate control diagnostic out of interest. But I will also do what you've said, thanks for the input dundoot.

Do you guys generally notice that it doesnt seem like theres a lot of fan strength, or tons of heat transfer in general in this car? (relative to other vehicles that is). I'm trying to determine this so I can know if something else is busted in my system.

I also havent found a mode to have defrost and feet on simultaneously, or defrost without A/C. Not a priority to figure out, but i'm suprised if they designed it this way.

[Nismo_line]

i had a problem with my fan not workin it ended up to be my fan blower motor was **** so replaced and blows hard now cold or hot but dont know if there is a setting for defrost and floor

[johnZ32]

Do you guys generally notice that it doesnt seem like theres a lot of fan strength, or tons of heat transfer in general in this car? (relative to other vehicles that is). I'm trying to determine this so I can know if something else is busted in my system.

I have found this as well. and that front defrost is sooooooo gay as well

[drift_077]

im driving my gtr in the winnipeg winter also. i installed a 250watt oil pan patch(cost around $122.00 @ part source), changed the oil to 5w30 syn. and im going to rust proof the body at the end of the month. is there any thing i can do about my awd and hicas? every day when i start it up for 20 mins, i hop in, and the 4wd and hicas lights are on. the awd does not work while the 4wd light is on. and i dont know about the hicas. ussauallly i drive it for an hour, then shut it off for a few secs. then turn it back on, and the problem is solved. what im asking is does this have to do with any of the parts from the hicas and alttessa awd being cold? because when the car has been running for an hour or 2 everything is in perfect running order.

and if the parts are too cold does anyone know of a solution? like adding some heat patch to some of the hicas and awd parts?

[dundoot]

A good check to see if the air con/heater servo is working or not is to just take your stereo out, turn your car on and adjust the heater controls to hot or cold.... take a look into your center console at the servo ( i believe on the lower left side at the back, should see a small arm connected to it ) as you adjust the controls, does it move? that will give you a definite answer whether it is the servo or not... Lets not fix what aint broke lol...
If it doesn't move then we can move on to the fix..


My car pumps the heat out now and has nice ice cold ac, not only that but I get to choose lol. I owned a 2003 sx2.0 before and the skylines blower was much stronger i found. I was under the impression that AC was some how better for defrosting?? I'm not sure.. Drove a car once before like the skyline, when you turned on defrost, AC automatically engaged as well..

[TheyKilledKenny]

I dont drive my line in winter but I do until the snow comes and get er back out on the road as soon as its melted. Ive had the same heat issues with my HCR32 in cooler fall and spring nights. In summer there is a ton of hot air that comes out, but in cooler weather the heat is marginal to say the least. Ill have a look at my servo as dundoot is suggesting. If that arm is moving when I adjust the controls Ill have to assume that maybe my heater core is clogged. Maybe Im not getting any hot coolant circulating through it due to gunk build up. I found some good threads on this issue. I shouldnt have to stick cardboard in front on my rad in 0 degree weather. Maybe my huge koyo rad is to blame? Im at a loss on this.

http://forums.nicoclub.com/r32-gtr-heat-isnt-working-t162972.html

http://www.skylinesaustralia.com/forums/Removal-and-Replacement-He-t280174.html

[RHDskyline]

hey. So i've been reading this thread trying to solve my heat problem on my r32 gts-t. In the summer. I had hot air. Obviously, its hot out haha. It blows fine. the blowers work.

When i drove the car from Southern alberta to Northern alberta last month, it was cold outside, but not that bad. probably around 0. It was a 6 hour drive and i didn't have heat the whole time. I had the blowers on and the heat cranked. It was blowing air. the air wasn't cold, but it wasn't hot. I guess you could say it was warm, but hardly. I never shut the vehicle off.

Now on american car, a mechanic would tell me to change the thermostat. After reading this thread and a few others, there is a thing called aircon. I am really confused as to what this is and what it does.

From reading the thread it appears to be located behind the stereo. But ive been behind there plenty times and don't recall seeing anything that you guys mentioned. then again, i wasn't looking. Can someone explain to me what it looks like and where it is.

Cause it seems that you guys have the same problem and it seems to be related to aircon.

I will be taking the car on a 14 hour trip to vancouver so it would be nice to have heat


THANK YOU

[johnZ32]

i would check the diagnostics on the econ unit and see any sensors have failed/need replacement.
One other thing i discovered recently (stupid me) is that the Fast heat feature actually works. before when i start my car in the mornings are -2 it takes a good 10 minutes of driving for it to start blowing warm but if i use the FH it only takes like 5 minutes =D

When there is room in my garage i am going to be taking a look at my blender servo and crap and i shall take pictures as there is a great lack of them from what ive read

[TheyKilledKenny]

This should be the same problem as in the Climate Control LOLS thread. The cabin air temp sensor is located attached to the backside of your center console trim around your stereo area. If you look at the bottom right corner of the plastic trim you'll see a series of small vents, the sensor is affixed to the trim via two screws behind those vents. Ive had the same problem, Im going to remove mine and blast er with some contact cleaner.

[RHDskyline]

Well after trying desperately to get my heat to work (since i will be driving it soon and its freaking cold out). I discovered that my heater core isn't even getting coolant. I know this because i check the in hose and its hot,and i check the out hose and its cold. So i'm not even getting flow.

Is it common for these heater cores to do this, or is it a different problem, or what?

Since i probably won't be able to get it working in time. Whats an alternative to getting heat inside my car.

I will be going on a 14 hour road trip to vancouver. I already tried a space heater, but it draws to much power. There has to be a cheap, simple solution. IDEAS?

[johnZ32]

not really no. did you try the FH function on the econ?