What is it with that Vacuum Switch Inside the Air Cleaner?
04-11-2016, 04:55 PM
#1
Melting Slicks
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What is it with that Vacuum Switch Inside the Air Cleaner?
Why on earth can't I find a replacement for the temperature sensitive vacuum switch inside the air cleaner of millions upon millions of GM vehicles through to the 90s?
The dual snorkel intake in my '79 L82 looks and works great except for that cursed switch.
The one in it when I got the car about two years ago was a total failure and would never hold vacuum. After calls and calls and calls I managed to find one (not the exact) from an area salvage yard. I verified that it worked but it has now failed in the same way--complete vacuum leak at all temperatures. UGGGHHH!
It really did help with cold weather starts. I find it amazing that I can't find a replacement!!!!!!!!!!!!!!!!
Any suggestions?
The dual snorkel intake in my '79 L82 looks and works great except for that cursed switch.
The one in it when I got the car about two years ago was a total failure and would never hold vacuum. After calls and calls and calls I managed to find one (not the exact) from an area salvage yard. I verified that it worked but it has now failed in the same way--complete vacuum leak at all temperatures. UGGGHHH!
It really did help with cold weather starts. I find it amazing that I can't find a replacement!!!!!!!!!!!!!!!!
Any suggestions?
04-12-2016, 07:44 AM
#2
Team Owner
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Have you checked with a GM dealership?
04-12-2016, 10:34 AM
#6
Le Mans Master
Mike, is this what you're looking for?
http://www.ebay.com/itm/AIR-FILTER-TEMPERATURE-SENSOR-CHEVROLET-C10-C20-C30-G10-G20-C1500-C2500-6CYL-250/231751058184?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140602152332%26meid%3D5c297094fd4f44698c1e73fdd633c9c1%26pid%3D100011%26rk%3D1%26rkt%3D1%26sd%3D311017144739
Good luck... GUSTO
http://www.ebay.com/itm/AIR-FILTER-TEMPERATURE-SENSOR-CHEVROLET-C10-C20-C30-G10-G20-C1500-C2500-6CYL-250/231751058184?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140602152332%26meid%3D5c297094fd4f44698c1e73fdd633c9c1%26pid%3D100011%26rk%3D1%26rkt%3D1%26sd%3D311017144739
Good luck... GUSTO
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04-12-2016, 10:47 AM
#7
Safety Car
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04-12-2016, 11:13 AM
#8
Melting Slicks
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Mike, is this what you're looking for?
Air Filter Temperature Sensor Chevrolet C10 C20 C30 G10 G20 C1500 C2500 6CYL 250 | eBay
Good luck... GUSTO
Air Filter Temperature Sensor Chevrolet C10 C20 C30 G10 G20 C1500 C2500 6CYL 250 | eBay
Good luck... GUSTO
04-12-2016, 12:48 PM
#9
Burning Brakes
Interesting enough, when I was replacing all of my vacuum hoses, I found a large BB inserted in the hose where it attached to this vacuum/temperature switch. The hose was connected to the switch, but I noticed the bulge where the BB was installed, it appeared to have been installed decades ago.
I replaced the switch and hoses but did not notice any difference. It was starting/running just as well before I touched it. Thought I would just pass this along since the switch is so expensive.
I replaced the switch and hoses but did not notice any difference. It was starting/running just as well before I touched it. Thought I would just pass this along since the switch is so expensive.