Thread: coolant problem need help!

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  1. #1 coolant problem need help! 
    GTX Level Member asite57's Avatar
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    so i did a back yard coolant flush today and after about 20min of driving the "low coolant" light comes on then is goes off after a little bit then it comes on and so on and so forth for probably 10 miles now im home the car doesnt even come close to over heating its actually pretty normal temps. i think i broke the level sensor i did pull the over flow tank out to clean it. im stumped
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  2. #2 Re: coolant problem need help! 
    Killa Bee Scottydoggs's Avatar
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    add coolant and re bleed the system.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: coolant problem need help! 
    Moderator dsmuts's Avatar
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    You probably have an air bubble in there.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  4. #4 Re: coolant problem need help! 
    GTX Level Member asite57's Avatar
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    should i bleed it through the spot on the tstat?
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  5. #5 Re: coolant problem need help! 
    Moderator dsmuts's Avatar
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    yeah bleed it on top the thermostat housing.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  6. #6 Re: coolant problem need help! 
    GTX Level Member asite57's Avatar
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    ive never bled the coolant before should i open the bleeder start it up and wait for the air bubbles to come out then when its a steady stream close it back up?
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  7. #7 Re: coolant problem need help! 
    Moderator dsmuts's Avatar
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    you have to do it when the thermostat is open. When the car is warmed up open the bleeder and it should spit some bubbles out. Close it and reopen it a few times. When you get nothing but a steady stream there is no more air bubbles.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  8. #8 Re: coolant problem need help! 
    Killa Bee Scottydoggs's Avatar
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    i like to wait till the fans come on, that way you know the T stat is open, then open the bleeder. i leave the rad cap off the whole time, if coolant dribbles out dont worry about it.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #9 Re: coolant problem need help! 
    GTX Level Member asite57's Avatar
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    the cars cold right now you say i should start it up and let it idle till the tstat opens up at 195 degrees then open the bleeder and wait till a steady stream comes out?
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  10. #10 Re: coolant problem need help! 
    Killa Bee Scottydoggs's Avatar
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    yes sir, thats how i do it.

    just let it idle till the fans come on, it can take up to 15 minutes.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  11. #11 Re: coolant problem need help! 
    GTX Level Member asite57's Avatar
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    alright i bled it with the tstat open a lot of bubbles came out but i did it a few times and now its a steady stream, so i should be all set right?
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  12. #12 Re: coolant problem need help! 
    Moderator dsmuts's Avatar
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    coolant light go out?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  13. #13 Re: coolant problem need help! 
    Killa Bee Scottydoggs's Avatar
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    you should be, just keep an eye on your gauge and check the level down the road.

    some people have had to to it over and over. i do it one time and im set.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  14. #14 Re: coolant problem need help! 
    GTX Level Member asite57's Avatar
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    alright drove it about 10miles or so no light everything seems fine ill do it again if the light comes on but thanks guys very very helpful
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  15. #15 Re: coolant problem need help! 
    Moderator dsmuts's Avatar
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    No prob glad to help.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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