I found and bought something I've been dragging my feet over for a while.
So I says to myself, "Self, you need to find one of those date coded high temperature A/C compressor cutout relays for mounting right next to the accumulator under the hood." Different than the WOT or low pressure cutout switch by far. This relay is for the ECM to kickout the compressor if it senses the engine coolant temperature is too high. The A/C system doesn't need to add insult to injury to the coolant.
For the 1984 model year, the relay is number 10022960. Sometime in 84, they changed it to a 10031837. And then changed it again in 1986. Can't recall which number. The parts information says 10039961, but my 87 442 still has the original 1987 (April 87 build date) date coded (I think Janurary or February 87) relay. I want to say the last three of the part number stamped on it is 243 or 248, but I can't remember right now.
These relays are the SAME relays that the Corvettes used to flip up the headlamps, so it's a bit pricey when you find them because...Corvette. Some places were asking $95!!! Technically speaking though, these are just a general purpose relay, nothing super special about them except on a G-body they're right out there where everyone can see them.
I already have a new GM date coded relay already, and it's close to the date and will do if need be, but was hoping I'd stumble across a December 3, 1984 (4338) relay to match what was on the car from the factory. My 85 was built in February. The date code is last number of the year followed by the day of the year for the last three digits.
An interesting fact that so far I have found EVERY date code on this relay to be a Monday. So this is one relay that always has a case of the Mondays. 🙂 Mondays must've been relay days at the manufacturing plant, I guess.
It's been a while since I did any looking around for one, but was piddling around today and ran across one with the EXACT date code I needed (4338) for a reasonable price. My old one isn't bad at all, but I'm going to want all new parts under the hood and a date code match would just be that much neater. Not because it is required. It's just because if you can, why not?
So I says to myself, "Self, you need to find one of those date coded high temperature A/C compressor cutout relays for mounting right next to the accumulator under the hood." Different than the WOT or low pressure cutout switch by far. This relay is for the ECM to kickout the compressor if it senses the engine coolant temperature is too high. The A/C system doesn't need to add insult to injury to the coolant.
For the 1984 model year, the relay is number 10022960. Sometime in 84, they changed it to a 10031837. And then changed it again in 1986. Can't recall which number. The parts information says 10039961, but my 87 442 still has the original 1987 (April 87 build date) date coded (I think Janurary or February 87) relay. I want to say the last three of the part number stamped on it is 243 or 248, but I can't remember right now.
These relays are the SAME relays that the Corvettes used to flip up the headlamps, so it's a bit pricey when you find them because...Corvette. Some places were asking $95!!! Technically speaking though, these are just a general purpose relay, nothing super special about them except on a G-body they're right out there where everyone can see them.
I already have a new GM date coded relay already, and it's close to the date and will do if need be, but was hoping I'd stumble across a December 3, 1984 (4338) relay to match what was on the car from the factory. My 85 was built in February. The date code is last number of the year followed by the day of the year for the last three digits.
An interesting fact that so far I have found EVERY date code on this relay to be a Monday. So this is one relay that always has a case of the Mondays. 🙂 Mondays must've been relay days at the manufacturing plant, I guess.
It's been a while since I did any looking around for one, but was piddling around today and ran across one with the EXACT date code I needed (4338) for a reasonable price. My old one isn't bad at all, but I'm going to want all new parts under the hood and a date code match would just be that much neater. Not because it is required. It's just because if you can, why not?
