C4 Corvette Cooling System Diagram
Loves302Chevy posted these diagrams that will be helpful. If installing a new water pump, transfer the heater hose fitting from the old unit. The sender is for the gauge and has 1 wire and goes into the rear of bank 2 cylinder head in between cylinders 6 and 8 spark plugs. The overheat light may or may not come on. 1985-1989 AUXILIARY FAN WIRING INSTRUCTIONS.
- C4 corvette cooling system diagram with dpf
- C4 corvette cooling system diagram 1989
- C4 corvette cooling system diagram
- C4 corvette cooling system diagram 6 0 lq9 engine
- C8 corvette cooling system
- C4 corvette cooling system diagram answers
- C4 corvette cooling system diagram 2007 x3
C4 Corvette Cooling System Diagram With Dpf
Place radiator on lower support. The cooling fans do not come on until the coolant temperature is way too hot". 1990-1996 COOLANT SWITCH INSTALLATION. You cannot post without approval. Wiring Instructions. C8 corvette cooling system. These sensors are located in the center on both sides of the engine block just above the oil pan. Use the supplied harness to connect the new style connector to the fan switch. Slipping Belt - Check belt tension and condition. If those are correct it may be a sensor or tuning issue so verify sensor outputs with a good multi meter. Push down on the plate on #1 relay and both fans. If none of the above inspections reveal the problem area, the heads must be considered prime suspect. To avoid being burned, do not remove the radiator cap (surge tank cap) while the engine is hot. Confirm continuity between the socket for pin 87 for relay #3 and Negative Battery Terminal.
C4 Corvette Cooling System Diagram 1989
At normal operating temperature, the coolant level should increase to the "FULL" mark on the recovery tank. Thanks, Mark, and let me know how this works out for you. Sometimes this can be caused by a low coolant level or air trapped under the sensor. Last edited by a moderator: There are 2 temp sensors. Start engine and run with radiator cap removed until upper radiator hose becomes hot (thermostat open). Draining and Filling the Cooling System. If the thermostat was removed for replacement or flushing, fill the engine block with coolant before installing the thermostat, this is not necessary but makes it easier to get all of the air pockets out. C4 corvette cooling system diagram 6 0 lq9 engine. Defective sensors or connections too sensors. This additive can also reduce coolant temperatures by as much as 20 degrees Fahrenheit. Relay #1 is energized. You cannot start a new topic. 05-08-2006 05:58 PM. Monitor the coolant temperature during this time and make sure not to overheat the vehicle.
C4 Corvette Cooling System Diagram
TRANSMISSION COOLER. Mark, be sure to store used coolant in the proper manner, such as in a used engine coolant holding tank. Any time that your dealing with a potential temperature issue or a trouble issue where, knowing the exact temperature vs what a gauge might say, it helps to have a handy and accurate infrared temp gun handy to locate and confirm heat, levels.... learn to use the factory shop manual, and a multi meter. When low fans are commanded the fans are wired in series. This can be done by probing the engine with a sounding bar (or large screwdriver. Later corvette 1996. Both fans at high speed. The fans have two speeds low and high. Use a 50/50 mixture of high-quality ethylene glycol anti-freeze and water when adding coolant. They control almost everything, as sensors complete grounds or sense resistance. Cooling off that c4 corvette. Most t-stats work by by having a thermo reactive wax that starts to expand at a set temperature, then over about 10F-20F it continues to expand, and allow heated coolant to flow to the radiator, thus the t-stat will remain closed until its rated temperature range is reached and it will open wider up to its fully open position over about a 2-5 minute time frame. How warm would it have to be for that to show up? You cannot add new polls.
C4 Corvette Cooling System Diagram 6 0 Lq9 Engine
Radiator cooling fans were not designed for continuous use and they will fail prematurely. Remove lower radiator and heater hose at water pump. This must be good because you say one fan does run. I cannot prove the lower temperature thermostat increases engine wear, but at the very least it decreases your heater output in the winter. Inspection should be made with the cooling system cold. All internal passages can be inspected using a flashlight. The fan would run almost constantly as the thermostat regulates the temperature at 195 degrees. You can identify the relays by the color of the wires that. Here are some causes of overheating: * Bad Thermostat or clogged t-stat. The Right Way to Change Coolant in Your C4 Corvette. The lower white over flow tank under the hood near the pass side head light (#638 below) is not directly involved in cooling, its simply the overflow puke tank that the radiator will siphon coolant from as the radiator cools and the coolant contracts while it sits. The fan can start automatically in response to a heat sensor with the ignition in the "ON" position. And the other is a 2 wire sensor for the ecu.
C8 Corvette Cooling System
Remove A/C Accumulator and lay aside. Remove the transmission upper cooler line. You cannot attach files to posts. Product Expert Available. DRAINING AND RE-FILLING. Your temperature gauge or warning lamp may be coming on because of a faulty coolant sensor.
C4 Corvette Cooling System Diagram Answers
How about using an anti-seize and thread cleaner tap, run that thru there a several times before installing the anode. ID: Looking for vac ATM... Posted on: 2014/10/22 13:01. With the engine idling, add coolant to the radiator until the fluid level reaches the bottom of the filler neck. Wire and both fans should run at high speed. Relay #1 has the following colored wires. If your wiring up an aux electric fan, yes I know your likely to just use the 14 ga or 12 ga you have, but after you do feel the wire after the fans run for 15 minutes and youll see why I strongly suggest 10ga stranded wire on any aux fan application. The PCM controls the ground path for the three cooling fan relays. Don't forget the 242135 thermostat gasket to properly seal the thermostat housing. Replace radiator cap. C4 corvette cooling system diagram 2007 x3. Disconnect the fuel inlet and return lines. To check for exhaust leaks into the cooling system, drain the system until the coolant level stands just above the top of the cylinder head(s), ten disconnect the radiator upper hose and remove the thermostat and accessory belt. Must be good if the driver side fan works. Place a 1/8″ bead of RTV sealant (or equivalent) all around the thermostat housing sealing surface on the intake manifold. Ve had good results with a 200F T-stat with the holes drilled (READ THE LINK) but many guys select a 180F t-stat.
C4 Corvette Cooling System Diagram 2007 X3
If one so desires the computer can be reprogrammed to turn the cooling fans on at a much lower temperature, it is possible to maintain a temperature of below 200 degrees with the stock thermostat in place. If your cooling system does not have a bleeder screw/valve, the systemcan easily be bled by doing the following: 1. Is this just as simple as draining and refilling the coolant? 1984 Corvettes will have the most noticeable improvement, as the factory cooling fan setting is 238 degrees. Temps can vary on leaks, so you might need to get it checked. Blocked or restricted air flow, missing duct work. 1985-1989 Non B4P Optioned Corvettes. Top off recovery tank to proper level. The water pump's operation may be checked by running the engine while squeezing the radiator's upper hose (with the engine warm).
The radiator petcock is located on the passenger side of the radiator below the lower radiator hose. We recommend using a cooling fan switch that matches the thermostat opening temperature. The right fan is now powered directly through cooling fan relay #2 and both fans operate at high speed. Keep in mind theres DOZENS OF DIFFERENT CHEVY TEMP SENSORS, for OIL AND COOLANT AND AIR, SO BE SURE YOU SELECT THE ONE DESIGNED TO MATCH YOUR GAUGE AND APPLICATION. Once the plug is removed, install the new switch. GENERIC VERSION(above). Remove lower radiator hose at radiator.
The PCM sends a ground signal to the fan relay when it sees the desired temperature from a sensor to run the fan has been met. This would be a good time to replace the thermostat.