AMC Eagle Den Forum
The Mighty 258 => Emissions/Vacuum Systems => Topic started by: flyamerican on November 13, 2014, 12:22:12 AM
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My original Thermal Switch won't hold vacuum any more when it's cold, and I do want my air cleaner duct valves to work. Various places sell these but I don't have a part number or specifications with which to order one. My TSM says it should be closed at 40F and open at 55F. This is different than the Thermal Vacuum Switch, but some folks use the terms interchangeably. This part is a disk about 1/4" thick with two nipples sticking out the bottom, which exit the air cleaner and connect to vacuum lines. The Thermal Switch body lives inside the air cleaner housing. They were manufactured by Wells, and I can find lots of 'em on their website, but none seem to be listed for the Eagle. If anyone has an AMC or aftermarket part number for the correct switch, it would really help me out. Thanks!
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if you can post a pic of the part you need I will look to see if I have one on one of my parts cars. LAZ
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If its an earlier-model Eagle with the switch that sticks down from the air filter housing, the P/N is 8128338 (or J8128338 for Chrysler). Group 4.088-9. Good luck.
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I used a coat hanger to make mine manual.
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I found this for a 1984-1986 AMC Eagle, 258, non California emissions equipped
ac delco part number is 212-249, AMC part number is: 3238932 General Motors part number is: 12351034
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Thanks for all the replies! I did find a reference to the part, with several cross numbers for other manufacturers. I ended up with a Delphi TS10167 because I could get it from Rock Auto (love those guys). It doesn't agree with numbers from 1985AMCEagle but seems to work fine. I'll hang on to those numbers for next time.
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I wonder if some parts suppliers use different numbers, or I may have had the wrong item found. I apologize if that was the case
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No worries - I wouldn't be surprised if there are different part numbers that are equivalent. Unfortunately, none of the writeups for anyone's part has shown the open and close temperature range, which would make selecting the right one easy. We must rely on the supplier's idea of what cross reference part numbers are the same.
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I think the only way that you would find that out would be in the physical books that were thrown out of most parts stores. if your lucky, you can find a few parts stores that still have the catalogues, and staff members that know how to use them.