94Z28LS1toLT1

which fan is relay 3 i noticed on that relay box it doesnt have it,my cars lower fan (driver side) comes on @ low and high speed drivers side fan doesnt come on,my temp doesnt go past 190,do i need that relay tho or worry about it. the guy that sold me the car doesnt remember what he programmed the fan temps to.

shoebox

In 94, you could have early fans (2 relays, no high/low speed) or late fans (3 relays, w/low/high speed).

If you have early fans, only the left one comes on at the low temp threshold and the right fan is added when it reaches the high temp threshold. Both run at high speed.

4th Gen LT1 F-body Tech Articles

94Z28LS1toLT1

oh ok thank u so my set up is the the 2 relay set up then? i remember the other 94 i had 2 yrs ago had the 3 relay setup and all 3 relays where in the fuse box. The 94 i currently have has only 2 relays,so relay #3 is open n i dont need to worry with that relay spot?

Injuneer

Check your VIN. A car produced early in the model year is more likely to have the 2 relay "early production" setup.

shoebox

That would be correct, if an early production 94. If both your fans work (secondary fan comes on at high temp threshold), then you are good.

94Z28LS1toLT1

hey Fred vin is 2G1FP22P8R2132438

Hey Rob thank you,yea i remembered that secondary fan would come on in the summer time when its hot outside. Its colder now out here so just the primary is kicking on

94Z28LS1toLT1

looked @ the side of the door i see a date that says 11/93 im assuming thats the date nov 1993 early 1994