No heat when idling - Page 2 - Buick Enclave Online Community
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post #11 of 15 (permalink) Old 04-09-2019, 11:30 AM Thread Starter
Join Date: Sep 2018
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Thanks guys. I bought Prestone sealant that you pour in the coolant, has pellets in it. I assume that would work the same as the other products?
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post #12 of 15 (permalink) Old 04-09-2019, 01:58 PM
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I believe someone on the forums- recommended against that one.
Make sure its safe for aluminum.

2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
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post #13 of 15 (permalink) Old 04-10-2019, 06:42 PM Thread Starter
Join Date: Sep 2018
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Instead of playing with the sealant right off the bat, could my issue be due to low coolant level rather than a leak? I read that coolant 'disappears' slowly for some here.

Regarding the FULL tab on the reservoir... should the fluid be at the bottom, middle or top of the tab?

Instead of opening the radiator cap to re-fill, can I just re-fill by pouring into the reservoir? Don't wanna mess with the tabs on the engine cover unless I have to.

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post #14 of 15 (permalink) Old 04-11-2019, 09:00 AM
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Location: Williamsville, NY
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Originally Posted by DriveAround11 View Post
Don't wanna mess with the tabs on the engine cover unless I have to.
You probably should just take this to a mechanic if you think removing those push pin tabs is past your mechanical ability. You can take them off with pretty much anything, screwdriver, pocket knife whatever. You just pop the middle section up then pry the whole thing out. Once that middle pin is up you can pull them out with just your fingers. Not trying to be a jerk, but you have a car that's showing serious signs of coolant system problems (temp gauge going up just in a short idle at the drivethru) and you're flirting with thousands of dollars in repairs if you kill a head gasket or warp a head.

To put it in perspective, lets say you just rip every push pin out and destroy them. You can get a 40 pack of replacements for less than $5.

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post #15 of 15 (permalink) Old 04-11-2019, 09:54 PM Thread Starter
Join Date: Sep 2018
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I put in about a cup of coolant in the reservoir, heat stayed at normal levels, but I wasn't driving too much. will drive more tomorrow and see what happens .

When my heat gauge went up before, it went to the first tick after 210 (210 I believe is the normal temp, if I remember correctly).
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