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Old May 24, 2023 | 05:15 PM
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Default Help identifying a part
Can anyone please tell me what this plastic piece is attached to the front of the intake manifold adjacent to the thermostat housing?? It has a spring and pin that sits inside it. It broken and needs replacement if someone can point me in the right direction. Thx!



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Old May 24, 2023 | 05:20 PM
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Year and engine size may help speed a response???
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Old May 24, 2023 | 05:34 PM
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Thermal vacuum switch for EGR.
believe your car is a 79


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Old May 24, 2023 | 05:55 PM
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Originally Posted by RetroGuy
Year and engine size may help speed a response???
My apologies it’s a 79 L82 manual. Thank you
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Old May 24, 2023 | 05:58 PM
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Originally Posted by speedreed8
Thermal vacuum switch for EGR.
believe your car is a 79

Thank you very much sir. What’s it do and can I drive it without it? Easy replacment fix?

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Old May 24, 2023 | 06:19 PM
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It’s an easy replacement. May loose some coolant when you change it out.
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Old May 24, 2023 | 06:34 PM
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there are 2 there, 1 for heatriser, 1 for egr.
make sure which one broke controlled
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Old May 24, 2023 | 07:10 PM
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Brother, I think $60 plus tax & shipping is a total burn for this $5 part!
I have a good used one I just took off my clean Southern California car. PM me your shipping address and I'll give it to you.
Cheers, Greg




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Old May 24, 2023 | 09:28 PM
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Originally Posted by Greg
Brother, I think $60 plus tax & shipping is a total burn for this $5 part!
I have a good used one I just took off my clean Southern California car. PM me your shipping address and I'll give it to you.
Cheers, Greg



super nice of you sir! I’ll pm you
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Old May 24, 2023 | 09:36 PM
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Originally Posted by calwldlife
there are 2 there, 1 for heatriser, 1 for egr.
make sure which one broke controlled
I only saw one in that area. Very close to the t-stay housing
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Old May 24, 2023 | 09:41 PM
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Originally Posted by speedreed8
It’s an easy replacement. May loose some coolant when you change it out.
should I use a thread sealer when installing?
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Old May 24, 2023 | 09:51 PM
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Old May 24, 2023 | 10:38 PM
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Originally Posted by calwldlife
ok yes I did see that one but it’s attached to the thermostat housing. The one broken attaches to the intake manifold you can see the mount point in the photo just to the left of what you circled in red
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Old May 24, 2023 | 10:42 PM
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hot water is hot water.
1 valve allows vacuum cold,,heat riser
1 valve allows vacuum hot, egr
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