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  1. #81
    The AssMan
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    The exact temp is what I'm really interested in, because that will dictate whether or not the thermostat is, or should be, open. If it's not that high, running cool like that could mean other things. If it is to the temp that opens the tstat, then you've simply got an efficient radiator, or a very inaccurate gauge.
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  2. #82
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    Are your hoses hot and pressurized?
    SR20DEEPMD
    '12 Subaru Legacy

  3. #83
    Hksbluebird4u
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    How Do I Get Exact Temp?
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  4. #84
    [DE][DE+T]
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    Quote Originally Posted by HKS P10 GT View Post
    How Do I Get Exact Temp?
    Consult cable + laptop + software;
    Or ecu display such as techtom mdm, cmx, or nisdatascan, or ecutalk.
    I use this one:
    ECUTalk - Consult LCD Display

  5. #85
    SR20VE-T Boost Junky!
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    or an aftermarket gauge lol

  6. #86
    Hksbluebird4u
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    im gonna post up the part#'s of the sensors

    also does anyone know what else connects to that harness ? like is there a ground off the harness? the harness im talkin about is the harness which is attached to water temp sensor an meter sensor...
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  7. #87
    Hksbluebird4u
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    Temp Goes To Middle On An Incline.. Like If Im Goin Up A Hill..

    How Does That Relate To Electrical If There Is No Short Or Exposed Wire?

    Does An Incline Or Hill Cause Stress On Alternator..
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  8. #88
    SR20VE-T Boost Junky!
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    uhhhhhh sounds like you might need to add coolant, or atleast get all the air out..


    heres my reasoning..

    the coolant sensors are up fairly high on the engine, plus they're in the back by the firewall.. when you start going up hill the coolant would find its way to the sensor.. kinda like if you take a bottle thats lets say half full for example.. then lean it back at an angle.. see what the water does??

    anyway i could be as far from the truth as possible but i dont know, its worth a shot.. an in my mind makes sense..

  9. #89
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    Does An Incline Or Hill Cause Stress On Alternator..
    No. Just, no.
    Quote Originally Posted by lynchfourtwenty View Post
    uhhhhhh sounds like you might need to add coolant, or atleast get all the air out..


    heres my reasoning..

    the coolant sensors are up fairly high on the engine, plus they're in the back by the firewall.. when you start going up hill the coolant would find its way to the sensor.. kinda like if you take a bottle thats lets say half full for example.. then lean it back at an angle.. see what the water does??

    anyway i could be as far from the truth as possible but i dont know, its worth a shot.. an in my mind makes sense..
    That makes perfect sense. However, I have seen more often that a coolant sensor being not covered by coolant will read hotter than normal. But, logically there could be circumstances that may cause it to read lower than normal. It's definitely worth looking in to.

    It's also worth looking in to whether or not the sensor itself is still good. It may have a loose internal connection or the thermistor may not be fully secured, causing resistance variances at different angles.
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  10. #90
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    i find it odd how many of the ve'rs have this issue..

  11. #91
    Hksbluebird4u
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    My Friend Was Also Said More Antifreeze Then Water Might Cause This..
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  12. #92
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    lol, Really.. i think im runnin a bit more then water.. cant remember tho..

  13. #93
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    My Friend Was Also Said More Antifreeze Then Water Might Cause This..

    Water is mixed in antifreeze to activate the chemicals that improve the freeze and boil-off points. It also helps with heat dispersion. It won't make your gauge read wrong. If anything it would make your gauge read higher than normal because your heat dispersion would suck, so your gauge would still be accurate. But the gauge would never be faulty due to mixing percentages.

    So no.
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  14. #94
    Hksbluebird4u
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    THANKS wingman.. im gonna see if my friend lets me borrow his tool to bleed the air out of coollant ive tried doin this by leaving the car on an just leaving radiator cap off with the fluid topped out.. but maybe its not working
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  15. #95
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    try that trick with the arrow pointing towards the screw.. im gonna..

  16. #96
    Hksbluebird4u
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    ??? what arrow?
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  17. #97
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    ok so on the thermostat housing there should be a sticker with a little red arrow pointing to one of the top T-stat housing bolts, i guess ya loosen it until water starts drippin out then tighten it?? dont quote me on that, thats just from what i skimmed over somewhere..

    edit:

    thats from when i was puttin my engine in, i never noticed it lol
    Last edited by lynchfourtwenty; 01-29-10 at 04:04 AM.

  18. #98
    Hksbluebird4u
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    ... Hmmm
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  19. #99
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    incase u didnt see that pic, bump

  20. #100
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    Make sure you have the correct amount of coolant in the overflow bottle as well. Coolant is actually sucked out of it and into your coolant system when the temps rise. It's a psuedo self-bleeding process. First, you obviously want to bleed the coolant with the screw as mentioned above. Then run the car with the screw tightened again and the cap off, heater on and full hot. Let it run for a few minutes making sure you don't need to add more coolant, then cap it. The system will do the rest as far as pulling coolant from the overflow res.
    SR20DEEPMD
    '12 Subaru Legacy

  21. #101
    Hksbluebird4u
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    Team Work Im Liking It...

    I Got A Video... Of Me Doin It At Work Well Tryin To Bleed Without Fukin With That Bolt...

    New Sypthoms

    Gets To The Middle After Staying At A Dead Stop For Like 10 Mins...I DONT STAY STILL FOR 10 MINS.
    and if i drive itll go back down...
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  22. #102
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    sounds like your gettin there man, try messin w/ that bolt..

  23. #103
    Hksbluebird4u
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    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  24. #104
    The AssMan
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    oh! don't run the car without the cap on the radiator! Coolant is a pressurized system. You're compromising it. If you need to bleed it, please do it the right way. That is not the right way.
    Mutineer:"Would anyone else like to confuse freedom with treason?"
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  25. #105
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    Right. I guess I should have been specific. I run without the cap for around 5 minutes to get the big pockets from the water jacket. Once I don't get bubbles and the level starts to rise up in the radiator neck I cap it and let the system do the rest.
    SR20DEEPMD
    '12 Subaru Legacy

  26. #106
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    Quote Originally Posted by Cliff View Post
    Right. I guess I should have been specific. I run without the cap for around 5 minutes to get the big pockets from the water jacket. Once I don't get bubbles and the level starts to rise up in the radiator neck I cap it and let the system do the rest.
    I've used this method also.
    Put front on jack stands, idle with cap off, heater on full blast, up to normal
    operating temp, rev it a few times to get air pockets out, cap it.

  27. #107
    Hksbluebird4u
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    Tried This And Still No Luck..

    Now Im Thinkin Its Fukin Thermostat Again.
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  28. #108
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    use a laptop (or whatever computer) to do a consult an see what the exact temp is.. easy stuff man

  29. #109
    Performance+Plus
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    I've always...I repeat...always bled my cars with the cap off and have never had a problem. Only cars I've ever had a problem doing this way were ford and chevy's that didn't have a fill on the radiator. Had to use the bleeder screw on those.

  30. #110
    Hksbluebird4u
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    STILL PROBLEM OCCURS..

    at a dead stop for 10 mins it moves up

    if i start driving it goes down quick.
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  31. #111
    The AssMan
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    im sorry if i missed this, but have you done the test on the tstat as described in the FSM?

    I am assuming you mean it still stays below 25% on the gauge when driving
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  32. #112
    SR20VE-T Boost Junky!
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    have you tried lookin to see what temp the ecu says its at? when i get my nistune ima check

  33. #113
    Hksbluebird4u
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    Quote Originally Posted by WingmanSR20 View Post
    im sorry if i missed this, but have you done the test on the tstat as described in the FSM?

    I am assuming you mean it still stays below 25% on the gauge when driving
    it stays below the line like the main one example ----> c"I"/ I \ H

    and yes i did what fsm says i even put a clip between the raditor cap...
    and it was doin fine.. fans were turning on and all but then.. as i started driving.. it dropped
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  34. #114
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    it stays below the line like the main one example ----> c"I"/ I \ H
    I have no idea wtf this is.
    Quote Originally Posted by HKS P10 GT View Post
    and yes i did what fsm says i even put a clip between the raditor cap...
    and it was doin fine.. fans were turning on and all but then.. as i started driving.. it dropped
    umm, testing the thermostat is removing it, putting it in a pot of water and heating the water to make sure the spring assembly is working properly at the specified temperatures. The FSM says exactly that. It gives you the approximate opening per temperature reading to make sure it isn't too open or too closed at each temp. It mentions nothing about a paperclip.
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  35. #115
    Hksbluebird4u
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    i tested both thermostats and both opend an closed i say both because i have bought 2 extra ones for another car

    i did do that but it opened an closed fine...
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  36. #116
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    i tested both thermostats and both opend an closed i say both because i have bought 2 extra ones for another car

    i did do that but it opened an closed fine...
    Did it open and close the proper amount at the listed temps? It really seems like your t-stat opens too early.
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  37. #117
    Hksbluebird4u
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    i know... but ive tried a total of 4 and still same .. what could cause a t-sat to open early if nothing is wrong with t-sat?
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  38. #118
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    i know... but ive tried a total of 4 and still same .. what could cause a t-sat to open early if nothing is wrong with t-sat?
    outside of it being old or damaged/malfunctioning, either the temp at the t-stat is higher than at the sensor, or the t-stat isn't built right / not the right one.

    You said the fans kick on, when does that happen?
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  39. #119
    Hksbluebird4u
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    that happned when i tried bleeding the air out ... from what the fsm says which shows the info about the clip being used on radiator cap..
    it turned on when temp got to the middle at a stand still.. once i started driving the temp drops nasty... i havent heard my fans turn on while driving for a few months now..
    like seriously how much air CAN there be?

    what is that lil hole on the water pump for?
    HKS DANNY
    1992 Nissan 300ZX TT
    2002 Infiniti G20 sport

  40. #120
    The AssMan
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    Quote Originally Posted by HKS P10 GT View Post
    that happned when i tried bleeding the air out ... from what the fsm says which shows the info about the clip being used on radiator cap..
    it turned on when temp got to the middle at a stand still.. once i started driving the temp drops nasty... i havent heard my fans turn on while driving for a few months now..
    like seriously how much air CAN there be?

    what is that lil hole on the water pump for?
    The little hole will leak coolant when the pump is bad IIRC. You might consider the possibility that your gauge just reads low. There might not be anything wrong. Until you have a method to get a direct, real-time temp reading, this is what I'd go with.
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