They are AC related.
I can guarantee tee what one of them is NOT, the high center brake light like I have read in other posts . I unplugged all four relays and tested the HIGH CENTER BRAKE LIGHT, it is still working - 97 S10 2.2L
at the back of the firewall 4 relays lined up.
Those are for the air conditioning system.
There are some relays under the hood on the firewall and some more relays in the back of the glove compartment, it all depends on which relay you are looking for.
Look for a?æbox located in the glove compartment marked "relays" of the 1997 Chevy S10. The horn relay is the first one on the left.
The A/C relay on a 1997 Chevy S-10 is located on the firewall of the engine compartment. It is to the right of the blower motor. This relay is part of a bank of relays and should be the third one from the left side, as a person is facing it.
AC compressor clutch relay, starter relay, high speed blower motor relay,
It may also be on the firewall on the passenger side.It may be on the firewall next to your master cylinder.AnswerIn the glove box behind a plastic panel. There are 3 relays in there. The fuel pump is the one closest to the drivers side. Not all have them in the glove compartment1995-98 S10 series fuel pump relay is located in the glove compartment.
There are no fuses on the firewall to my knowledge but there is at least two relays, one is the AC compressor clutch relay and the other is the starter relay.
I have had a 87,88,92, 93 s-10 and I have found the relays for the fuel pump located on the drivers side firewall near the top
pump relays r on the firewall under hood on right side the one with green,pink,and gray wires
relays will be found on inerfenders or firewall
There are several relays on that vehicle. We need to know which one you are looking for.