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Old 07-08-2019, 08:33 PM   #1
SuperCookie
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2001 SC2
Default “Overheating” part 3

Ok third times the charm. hopefully. I bought a new coolant tank cap. And i did a stress test like last time. again around 220F coolant came gushing out of the cap. the needle never got past the middle of the gauge. here is a link to a video of it overheating. I honestly don’t know what to do. I have done the intake coolant fix and bought a new cap. And for the guy who keeps saying “is the recirc line flowing” please post a picture of which line that is.

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Old 07-08-2019, 08:43 PM   #2
fdryer
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Default Re: “Overheating” part 3

Is the coolant container original or replacement? If replacement, maybe not enough threads or something is mismatched between the cap and threaded portion.....

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Old 07-08-2019, 08:46 PM   #3
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Default Re: “Overheating” part 3

Quote:
Originally Posted by fdryer View Post
Is the coolant container original or replacement? If replacement, maybe not enough threads or something is mismatched between the cap and threaded portion.....
original

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Old 07-08-2019, 09:24 PM   #4
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Default Re: “Overheating” part 3

Pressure test the cooling system. New cap in place then the surge tank may be cracked.

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Old 07-08-2019, 10:50 PM   #5
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Default Re: “Overheating” part 3

Here, it is the one with a red arrow pointing to it. Dis-connect from the nipple on the reservoir and see if it flows coolant; post a picture/video if in doubt about how much it is flowing.

http://www.saturnfans.com/forums/att...8&d=1553619577

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Old 07-09-2019, 03:25 PM   #6
Keblar
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Default Re: “Overheating” part 3

If you got a cheap replacement cap you could still be losing pressure at the reservoir. I've found many of the aftermarket Res caps to be absolute garbage. The threads don't match properly or are too deep to seal. When my original failed I got a cheap one that failed at the center, not the threads, within a year. I went through a pointless return at Advanced Zone only to find 2 "different" aftermarket models were probably the same when the threads wouldn't seat.

Have since had solid experience with:

https://www.amazon.com/ACDelco-RC87-...gateway&sr=8-1

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Old 07-19-2019, 08:51 PM   #7
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Default Re: “Overheating” part 3

So, did you check the recirc line? How much does it flow? If you have not done that yet, we are still stumbling around here in "part 3"; no use looking at the "part 4" thread...

How about the pressure-test on the cap and cooling system, do they both hold at least 15 psi?

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