Thread: Alarm going off inside car when reaching highway speeds..coolant temp alarm?

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  1. #1 Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    SE Level Member MattTheBaker123's Avatar
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    Hey guys,

    I've had some kind of alarm going off every once and awhile when I reach highway speeds in my 04 gp. It's basically a constant alarm until I slow down a bit. Nothing shows up on my HUD as it's beeping. I'm sure I'm due for a lim gasket and I've replaced my coolant elbows 3 times since september 2011. Could this be a coolant temp alarm? I have noticed my temp get pretty high at times this summer but when this alarm sounds my temp never appears to be at a dangerous level. Has anyone else ever had this happen in their gp or maybe would know why this alarm goes off while I'm driving?

    Thanks much,
    Matt
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  2. #2 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    SE Level Member PALMCASTER GT1's Avatar
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    I'm having kinda the same problem going on rt now . I got a 04 gp gt1 n/a w /271000 miles .I thought it was the LIM gasket but after changing it I still had the same thing going on. So now I think I'm just gonna do some top end work ( all gaskets. ) and have the heads rebuilt.
    04 GT1
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  3. #3 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GT Level Member bmx6454's Avatar
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    Quote Originally Posted by PALMCASTER GT1 View Post
    I'm having kinda the same problem going on rt now . I got a 04 gp gt1 n/a w /271000 miles .I thought it was the LIM gasket but after changing it I still had the same thing going on. So now I think I'm just gonna do some top end work ( all gaskets. ) and have the heads rebuilt.
    Wow lol. That's a lot of work, and a decent amount of money to through at an issue.. U might wana do more research on the issue b4 doing all that. Or even just a have a shop take a look at it first. Just sayin...
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  4. #4 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GT Level Member bmx6454's Avatar
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    And having the heads rebuilt would likely have no affect on this issue.
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  5. #5 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    SE Level Member MattTheBaker123's Avatar
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    It's about 90 degrees here in minnesota today. I had my cruise control set at 70 mph on the highway and it would just constantly beep. The temp was at a normal level on the guage, so in an attempt to shut it up I turned my heater on full blast to relieve some heat from the engine and miraculously it stopped beeping. Could this possibly be a bad coolant temp sensor or maybe a bad thermostat?
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  6. #6 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Sounds like danger to manifold.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  7. #7 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GT Level Member bmx6454's Avatar
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    Quote Originally Posted by MattTheBaker123 View Post
    It's about 90 degrees here in minnesota today. I had my cruise control set at 70 mph on the highway and it would just constantly beep. The temp was at a normal level on the guage, so in an attempt to shut it up I turned my heater on full blast to relieve some heat from the engine and miraculously it stopped beeping. Could this possibly be a bad coolant temp sensor or maybe a bad thermostat?
    if the heat did the trick, than it is likely that its overheating, but your temp gauge/sensor isnt giving an accurate reading. you might wana start investigating your cooling system. like is your coolant low, discolored, leaking externally? and definitly check your uim for signs of leaking/cracking.
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  8. #8 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    SE Level Member PALMCASTER GT1's Avatar
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    Bro , I already change everything except the head gaskets. , and I'm sure I over heated the motorwhen I first changed the radiation. Just keep putting it off. And fyi, I do the work on my cars myself. Just cost me parts.
    04 GT1
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  9. #9 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    SE Level Member MattTheBaker123's Avatar
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    Quote Originally Posted by bmx6454 View Post
    if the heat did the trick, than it is likely that its overheating, but your temp gauge/sensor isnt giving an accurate reading. you might wana start investigating your cooling system. like is your coolant low, discolored, leaking externally? and definitly check your uim for signs of leaking/cracking.
    I flushed my radiator and bled the system not too long ago after I put new elbows in and have been watching the coolant levels pretty close ever since. I can see moisture around where the intake manifold gasket is but it doesn't look all that bad imo. Either way my gp has 200k miles and as far as I know the gaskets have never been done. I'm not thrilled about paying $500+ to get it done by a mechanic so it would probably be a good idea to change them myself. How difficult is it to change the gaskets?
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  10. #10 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Its not that hard with some know how and the right tools.

    Taking your time and being carful is all you need to do.

    I wish you didn't live like 50 miles away or I'd help ya. I got the whole weekend off.

    SMGPFC Member #1
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  11. #11 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    Its not that hard with some know how and the right tools.

    Taking your time and being carful is all you need to do.

    I wish you didn't live like 50 miles away or I'd help ya. I got the whole weekend off.
    Have him pay you for gas.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  12. #12 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
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    I had this happen on my 2000 GT today. It due to the trunk not being shut all the way. Every time i hit a bump, the alarm went off as the trunk bounced open.
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  13. #13 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
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    You figure this out?
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  14. #14 Re: Alarm going off inside car when reaching highway speeds..coolant temp alarm? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Quote Originally Posted by disallow View Post
    I had this happen on my 2000 GT today. It due to the trunk not being shut all the way. Every time i hit a bump, the alarm went off as the trunk bounced open.
    Makes more sense.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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