coolant being pushed up through overflow coolant

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Mar 11, 2015 | 10:25 PM

#16

warmeck

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Posts: 189

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by Injuneer

No, still high, but not harmful. Typically you want it no more than the mid-point of the gauge, about 210°F. What temp t'stat did you get?

Duralast/Thermostat 4218 at AutoZone.com - 1 reviews

Mar 11, 2015 | 10:49 PM

#17

warmeck

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Re: coolant being pushed up through overflow coolant

Stant Lev-r-vent Radiator Cap 10334: Advance Auto Parts

going to get this cap what do u think?

Mar 11, 2015 | 11:07 PM

#18

Fatdog2

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Posts: 1,174

Re: coolant being pushed up through overflow coolant

E-bay has a ac delco

now for$14.55 shipped.#RC94 cap.Hope this helps.

Mar 11, 2015 | 11:08 PM

#19

Fatdog2

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Posts: 1,174

Re: coolant being pushed up through overflow coolant

That one fits my 93.Check for your application.

Mar 12, 2015 | 12:55 AM

#20

warmeck

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Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by Fatdog2

That one fits my 93.Check for your application.

yeah its fits my 94 going to pick it up tomorrow afternoon

Mar 12, 2015 | 12:58 AM

#21

warmeck

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Posts: 189

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by Fatdog2

E-bay has a ac delco

now for$14.55 shipped.#RC94 cap.Hope this helps.

looking for something i can have go out and buy and have right away trying to fix the problem asap as this is my DD. Thanks for looking out tho

Mar 12, 2015 | 08:54 AM

#22

shoebox

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Joined: Dec 1969

Posts: 27,727

From: Little Rock, AR

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by warmeck

Stant Lev-r-vent Radiator Cap 10334: Advance Auto Parts

going to get this cap what do u think?

That is a 20# cap. You need an 18#.

Mar 12, 2015 | 02:19 PM

#23

warmeck

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Posts: 189

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by shoebox

That is a 20# cap. You need an 18#.

what do u mean by this, 20# cap of what?

Mar 12, 2015 | 02:25 PM

#24

Injuneer

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From: Hell was full so they sent me to NJ

Re: coolant being pushed up through overflow coolant

The link opens, and shows that the cap has a rating of "20", meaning 20 psi... which means it opens when the pressure builds to 20 psi (pounds per square inch). The LT1 cap should be rated at 18# (18 psi).

Click on the "Specifications" tab:

Quote:

Cap Finish: Plated
Cap Material: Steel
Lever Type: Yes
Logo: Yes
Material: Steel
Maximum Pressure: 20
OE Replacement: No
Quick Pressure Release: Yes
Radiator Cap Shape: 4 Ear
Reservoir Overflow System: Yes
Shape: 4 Ear

It doesn't help that when you do the "check vehicle fit", it shows 18 psi.

Quote:

This part is an Exact fit for your1994 Chevrolet Camaro Z28

Safety Release Radiator Cap; 18 psi Pressure Rating

Mar 12, 2015 | 02:41 PM

#25

warmeck

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Posts: 189

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by Injuneer

ah got it so this cap would be fine? CST/Radiator Cap 7718 at AutoZone.com

Mar 12, 2015 | 02:49 PM

#26

shoebox

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Joined: Dec 1969

Posts: 27,727

From: Little Rock, AR

Re: coolant being pushed up through overflow coolant

Quote:

Originally Posted by warmeck

ah got it so this cap would be fine? CST/Radiator Cap 7718 at AutoZone.com

It is the right rating, if it fits the neck of the radiator. They are not all the same. Since you tested the cap good, I doubt if this is going to fix your problem. Guess it couldn't hurt to try. I would do the hydrocarbon test that Injuneer suggested.