What kind of cooling fan does a 1990 Corvette have?

1990+ Corvettes have two radiator cooling fans. 1990-1991 Corvettes also may have an oil cooler. 1992-1996 Corvettes do not have oil coolers due to clearance issues when the catalytic converters were moved close to the oil filter.

Where is the relay wire for a corvette cooling fan?

Locate the dark green/white wire at the relay connector. This will make both cooling fans come on simultaneously, meaning less run time for both fans if the cooling system is in good condition. Route the cooling fan harness dark green or blue wire to the main fan relay (near the battery).

What should the cooling temperature be on a 1984 Corvette?

1984 Corvettes will have the most noticeable improvement, as the factory cooling fan setting is 238 degrees. Lower temperatures will work at the expense of fuel mileage. There are various cooling fan control switches available to turn the cooling fans on earlier than the factory ECM or PCM controlled settings.

What’s the best way to cool a corvette radiator?

You might be able to knock off a few degrees with a synthetic oil, and run a 60/40 (more water) mix to get through the summer months. You could go straight water for a parade cruise or track day, then change it back when you return. Electric fans can boost the radiator’s capability to remove this extra heat load.

Why is it important to keep your corvette cool?

Keeping your Corvette’s engine cool, especially during summer temperatures or performance runs, can make the difference between cruising along the coastline in comfort or walking along the roadside back home. We’ve assembled some common steps below to help maintain your vehicle for those long runs on sunny days.

Why is my Corvette overheating at high speed?

High speed overheating can be a result of the lower radiator hose collapsing due to the increase in coolant flow. Older Corvettes have a metal coil spring inside the lower radiator hose to prevent the hose from collapsing when water is flowing at maximum.

Why is the lower radiator hose on my Corvette not working?

Older Corvettes have a metal coil spring inside the lower radiator hose to prevent the hose from collapsing when water is flowing at maximum. If you can squeeze this hose closed with your hand, then the spring is probably missing and/or the hose might be defective. In this case, you probably need a new hose.

What is the override switch on a corvette radiator?

Our 244502 (1984-93) or 244503 (1994-95) manually operated switch allows you to override the automatic switch for additional cooling while waiting in the staging area. “Why not run the cooling fans continuously?” Radiator cooling fans were not designed for continuous use and they will fail prematurely.

Where is the low temp fan switch on a 1996 Corvette?

1985-1996 Corvette Low Temp Cooling Fan Control Switch would be installed in this location (driver’s side cylinder head between cylinders 1 and 3). Cut the dark green /white wire at the inner fender well.

What’s the temperature of a C4 Corvette fan?

I have a 1992 C4 Corvette. One fan comes on at 227 degrees and goes off at 217 degrees. Same fan comes on when the A/C is turned on. Other fan does not come on and it is a new fan. I have checked the relay and it is good.

How can I make my Corvette cooling fan run simultaneously?

Connect one of the new harness wires to the dark green/white wire. Route the other harness wire to the main fan relay (near the battery). Locate the dark green/white wire at the relay connector. This will make both cooling fans come on simultaneously, meaning less run time for both fans if the cooling system is in good condition.

What kind of fan do I need for a 1985 Corvette?

On 1985-1989 Corvettes with an auxiliary cooling fan, a relay should be installed to turn the fan on when the A/C is on. The 1985-1989 Corvette without an auxiliary cooling fan should have a 12” pusher fan installed in front of the A/C condenser.

When to replace air conditioner relays in corvettes?

These hoses have a nylon inner barrier. The nylon barrier hoses were introduced in late 1987 but any hose over ten years old should be replaced (R-134a systems operate at higher pressures). 1985-1989 Corvettes with an auxiliary cooling fan, a relay should be installed to turn the fan on when the A/C is on.

Do you need a pusher fan for a C4 Vette?

1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe. Yep…the pusher/secondary fan will only come on at 230+ temps, but it should also come on at a lower temp with the A/C on, depending on the pressure switch operation for the A/C, and if the PCM commands it.

Why does my 1996 Corvette LT1 overheat while standing?

Re: My 1996 corvette lt1 will overheat while standing,fan… U have an electrical issue. If water pump was failing then how in god’s creation could the two fans cool the engine down? Check out the circuitry that controls the normal fan operation and you will take care of the issue.

Where are the fan relays on a corvette?

There are 3 fan relays on the left end of the radiator shroud. They are commanded by the ECM when the engine temp set point is reached based on the temperature sender in the head. They work like this, first stage cooling sets the relays so the fans are in series, so they split the voltage.

What kind of cooling fan does a 1990 Corvette have?