Procharged - Recommendations on Cooling Issue
Just happened across the following thread and while reading it, thought of this thread. I haven't seen this info posted here before so it might be some good reading.
https://www.yellowbullet.com/threads...ummies.621363/
I had never heard of the bypass loop in the ls cooling system before and Los' explanation for why running without a thermostat does and doesn't work makes sense.
https://www.yellowbullet.com/threads...ummies.621363/
I had never heard of the bypass loop in the ls cooling system before and Los' explanation for why running without a thermostat does and doesn't work makes sense.
Update. I have since replaced the car battery since it had a dead cell. I also had the stock alternator upgraded for 172 Amps from a reputable shop.
Upon starting the car the dash reads about 14 volts, however, once the fans kick in the needle drops down under 13 volts in the yellow hashed area.
Can someone verify my wiring? Using Derale Dual Electric Fan Relay Harness Part# 16765 and Derale High output fan Part# 16925
FAN#1
Battery Power from the Post on the Fuse panel, then to the Red Wire (Pin 30) of #1 Relay.
Chassis ground to Black wire (Pin 86) of #1 Relay.
Green A/C trigger (Pin 85) wire terminated and heat-shrunk.
Yellow wire (Pin 85) to Factory trigger for stock L fan.
Orange wire (Pin 87) to 30 Amp fuse to Blue wire on Derale L Fan.
Negative Fan wire (Black) to Factory L fan ground wire.
FAN#2
Battery Power from the Post on the Fuse panel, then to Red Wire (Pin 30) of #2 Relay.
Chassis ground to Black wire (Pin 86) of #2 Relay.
Green A/C trigger (Pin 85) wire terminated and heat-shrunk.
Yellow wire (Pin 85) to Factory trigger for stock R fan.
Orange wire (Pin 87) to 30 Amp fuse to Blue wire on Derale R fan.
Negative Fan wire (Black) to Factory R fan ground wire.
Using factory wiring allows me to have the PCM command on and off temps of fans, which works correctly. Also, when the A/C compressor is engaged the 2nd fan triggers on regardless of engine temp.
Upon starting the car the dash reads about 14 volts, however, once the fans kick in the needle drops down under 13 volts in the yellow hashed area.
Can someone verify my wiring? Using Derale Dual Electric Fan Relay Harness Part# 16765 and Derale High output fan Part# 16925
FAN#1
Battery Power from the Post on the Fuse panel, then to the Red Wire (Pin 30) of #1 Relay.
Chassis ground to Black wire (Pin 86) of #1 Relay.
Green A/C trigger (Pin 85) wire terminated and heat-shrunk.
Yellow wire (Pin 85) to Factory trigger for stock L fan.
Orange wire (Pin 87) to 30 Amp fuse to Blue wire on Derale L Fan.
Negative Fan wire (Black) to Factory L fan ground wire.
FAN#2
Battery Power from the Post on the Fuse panel, then to Red Wire (Pin 30) of #2 Relay.
Chassis ground to Black wire (Pin 86) of #2 Relay.
Green A/C trigger (Pin 85) wire terminated and heat-shrunk.
Yellow wire (Pin 85) to Factory trigger for stock R fan.
Orange wire (Pin 87) to 30 Amp fuse to Blue wire on Derale R fan.
Negative Fan wire (Black) to Factory R fan ground wire.
Using factory wiring allows me to have the PCM command on and off temps of fans, which works correctly. Also, when the A/C compressor is engaged the 2nd fan triggers on regardless of engine temp.
Only thing I would maybe to different is run power, terminal 30, straight off the battery(with a fuse). Also make sure you are using the proper gauge wire.
Have you verified the battery voltage with the fans on at the battery? The factory gauges are notoriously inaccurate.
Have you verified the battery voltage with the fans on at the battery? The factory gauges are notoriously inaccurate.
