AC high pressure switch for secondary fan.
#1
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Car: 1989 IROC-Z. Original owner
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AC high pressure switch for secondary fan.
Is this
https://www.ebay.com/itm/26117483727...VozTEKHjQbfQto
Interchangeable with this?
https://www.rockauto.com/en/moreinfo...19465&jsn=1047
Quite a difference in price.
https://www.ebay.com/itm/26117483727...VozTEKHjQbfQto
Interchangeable with this?
https://www.rockauto.com/en/moreinfo...19465&jsn=1047
Quite a difference in price.
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bluedart (09-17-2022)
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Re: AC high pressure switch for secondary fan.
I'd automatically go with the AC Delco one, but that seems like a ripoff price.
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Re: AC high pressure switch for secondary fan.
But, how can you go wrong at only $22 ?? What car is it for? Your cars you better pay up and go AC Delco
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Re: AC high pressure switch for secondary fan.
IMO, as long as the operating pressures, thread size and style and clocking for the plug are the same, they should be interchangeable. It appears that way to me looking at the pics but I cant say for certain.
But, how can you go wrong at only $22 ?? What car is it for? Your cars you better pay up and go AC Delco
But, how can you go wrong at only $22 ?? What car is it for? Your cars you better pay up and go AC Delco
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chazman (09-04-2022)
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Car: 87 Formula/ 00 Xtreme
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Re: AC high pressure switch for secondary fan.
I didn't spend an hour of researching/ checking/following part numbers to give you a wrong answer.....
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chazman (09-05-2022)
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Car: 1989 IROC-Z 305 LB9 AT Convertible
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Re: AC high pressure switch for secondary fan.
Maybe it is me but I do not see the results of your search and efforts. What part number(s) do you recommend to activate fans at a lower than OE temp? For my 89 IROC 305 LB9 AT car. Thanks.
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Re: AC high pressure switch for secondary fan.
I'm assuming there is a schrader valve under there though. Otherwise we are going to have a big mess.
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Car: 1989 IROC-Z 305 LB9 AT Convertible
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Re: AC high pressure switch for secondary fan.
My first post have the two options for an AC high pressure switch. Kev confirmed that in a PM. I will almost always go with an AC Delco part if available. Even if it costs more. Even if it costs double. But I'm not getting ripped off at 6 times the price, so I ordered the 4 Seasons one from Rock. This only to get the secondary cooling fan to operate normally. I confirmed the relays are fine. When I jumped the connector to the high pressure switch the secondary fan started with the AC on.
I'm assuming there is a schrader valve under there though. Otherwise we are going to have a big mess.
I'm assuming there is a schrader valve under there though. Otherwise we are going to have a big mess.
Thank you. I prefer OE, but at that price difference, 4 Seasons has been around a long time and I would get that one, also. Yes, there was originally a Schrader valve under said switch. So unless some Buffoon removed it, which I have never seen happen, you will be OK!
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Re: AC high pressure switch for secondary fan.
I am the original buffoon who's owned that car.
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Re: AC high pressure switch for secondary fan.
Apologies to all... I was not meaning to be a d--k to chaz.
I would also like to clarify RA is wrong on this part year range
This a/c switch is for 88-92... not 85-92
85-87..this switch worked opposite (chassis ground) of what is available.
I would also like to clarify RA is wrong on this part year range
This a/c switch is for 88-92... not 85-92
85-87..this switch worked opposite (chassis ground) of what is available.
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Re: AC high pressure switch for secondary fan.
#24
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Re: AC high pressure switch for secondary fan.
So the 4 seasons one doesn’t fit. The notches don’t fit the connector.
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Re: AC high pressure switch for secondary fan.
Well not only does that suck.. research has failed me and you and now, I'll eat my shoe.
It does appear the locking clip tab is correct, the alignment tab is off.
Technically, you could shave the alignment tab off and plug itvin.
There is no polarity (I know the align tab keeps it from spinning to) so,, as long
as the function is correct ... open w/ac off, closed w/ac on, should work.
The switch simply closes to ground.
This lets ecm know to run the primary fan cause ac is (charged) working and grounds 2nd fan (like fan switch)
4Seasons has a matching plug though
https://www.rockauto.com/en/moreinfo...=17535&jsn=528
Sorry for giving you a s___ alternative part chaz
It does appear the locking clip tab is correct, the alignment tab is off.
Technically, you could shave the alignment tab off and plug itvin.
There is no polarity (I know the align tab keeps it from spinning to) so,, as long
as the function is correct ... open w/ac off, closed w/ac on, should work.
The switch simply closes to ground.
This lets ecm know to run the primary fan cause ac is (charged) working and grounds 2nd fan (like fan switch)
4Seasons has a matching plug though
https://www.rockauto.com/en/moreinfo...=17535&jsn=528
Sorry for giving you a s___ alternative part chaz
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Re: AC high pressure switch for secondary fan.
Just ordered the OEM one on eBay. Ouch!!!
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Re: AC high pressure switch for secondary fan.
Man, I just noticed the guy raised the price of that switch to $138!!! Add another $20 for shipping and tax.
#31
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Re: AC high pressure switch for secondary fan.
My $150 switch came in. I'll let you guys know how it works.
#32
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Re: AC high pressure switch for secondary fan.
I almost forgot to get back to you. Yes, the way over priced high pressure switch did the trick.
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Re: AC high pressure switch for secondary fan.
...
Last edited by chazman; 10-28-2022 at 01:42 AM.
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