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ls1 thermo fan temp

8. What is the thread type used on Holden 308's?   If the low speed fan was OFF when the criteria was met to turn the high speed fan ON, the high speed fan will A/C pressure is greater than 1500 kPa. All cooling fans will be turned off in the vehicle speed is greater than 104 kph. The higher temps allow the engine to run more cleanly (better emissions), but a slightly lower temp is better for engine wear and performance. Fan relay should be wired to be switched to earth by the ecu. I have a 1968 Camaro that I'm running a LS6 cam only 5.3 and running a modified tune with a 99 LS1 computer. If relay 2 is bad, both fans will work on low speed, but fan 2 will not work on high.   An A/C request is indicated (YES) and the vehicle speed is greater than 50 km/h and A/C pressure is less Item information. The cooling fan low speed relay will be turned OFF when any of the following conditions have been met: G/day wjr2980 I'm running a 1985 KC LASER Thermo switch in my 202. At what temp they should turn on, Had new air-con done over the weekend the guy noticed that the thermo low speed weren't coming on with the air-con as they should. We offer electric cooling fan switches in four different temperature ranges. (0 members and 1 guests). Route the 2 groups of 12 gauge wires labeled “Fan #1/Low” and “Fan #2/High” from the relay to the electric fan motors. You have probably sorted this by now but in case you had wiring wrong the fan switch wires from the ecu switch to earth internally in the ecu so you wont get a relay signal. If it opens later then the temp can not cool lower than the later opening temp. just woundering where other people put theirs. GMP has the solution. Hi. The stock LS1 fan setting is 190 on and 180 off. The cooling fan relays are controlled by the Engine Control Module (ECM). I know this because cruising along at 110km/h the fans aren't on and only ram air is cooling the radiator and hence you get a good guide on where the stat is working. The coolant temperature is greater than 98°C. im only just starting out and want the ECU to switch the thermos on/off .. ecu is a 808 usb coms nvram 12v switched wire to green wire at a/c clutch. This is a discussion on Fan Temp within the General Help forums, part of the LSx Technical Help Section category; I just installed a 160 degree thermostat on my new motor. There are currently 1 users browsing this thread. Thermo Fan Temp Switch - posted in Electrical: I am going to fit a thermo fan temp switch to my SLR 5000 308. What temp range should I use?? - 1500 kPa or coolant temp more than 108 C 400W and 430W Off - 1170 kPa or coolant temp less than 104 C Fan Motors Used Large / Small Fan Stage 2 On Gen 3, V8 only. If the coolant temperature is greater than 113°C, when the ignition is switched off, the relay is energised for. Radiator Thermo Fan Temp CURRENT POWER Controller Switch 12V RELAY THERMOSTAT. Two Fans, 1 on at lower temp, other comes on at higher temp: GM LT1 early: Two fans, both at 6 volts at lower temp, full 12 with higher temp switch trips: GM LT1 later: Version from LS1tech: Here is a basic fan setup. There is a BCM message response fault which will cause a PIM DTC B2002.   In electrical terms, that's a no-no; you should … Trying to find out how these LS1 thermo fans work. Coolant temperature greater than 108°C. In 2005, when electric fans were introduced in GM trucks, both manual and automatic A/C controls communicated with the PCM using the Class 2 data stream, a signal not available … Wiring Instructions: 1985-1989 B4P Option equipped Corvettes. You would also see the fan status if you had a fan switch with LEDs (or just fan status LEDs). All these thermostats are,,,are simply modified stockers with a spacer for an earlier open temp. 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). come ON 5 seconds after the low speed fan is turned ON. If an engine coolant temperature sensor fault is detected and a DTC such as DTC P0177, P0188, P01114 06 M6 SRM Ill go out to start my car in the morning and id say after 5 mins, the temp needle slowly rises past normal trigerring the fan to turn on.   I just got done with a 4.3 to 5.3 engine swap and with all of that, installed ls1 e-fan with a nelson e-fan harness and tune. Available with 185° on/165° off or 195° on/175° off. Any suggestions please. I keep the same radiator and running a stock 186 deg thermostat. than 1170 kPa and the coolant temperature is less than 98°C. The 16" fan is at the stock setting 190 on and 180 off. Copyright © 2021 CommodoresPlus. An A/C request is not indicated (NO) and the coolant temperature is less than 95°C. Like I said … I will switch the earth on the thermo relay so will only need to use a single wire in the harness. For Ford … The PCM will only turn ON’ the engine The stock C4 Corvette cooling system runs inherently hot. Radiator Thermo Fan switch relay Temp Controller changeover Automobile headlight. If both the engine cooling fan relays are ON, the The switches will turn on the main fan, auxiliary fan or both at a lower temperature. fan comes on at 100 and the lag of coolant allows the engine to spike at about 104. i set mine at 97 on … This was a mediocre way of doing things, primarily because the current required to spin the fan was drawn through the switch itself. Hello!   all too hot anyway. Have a 96' 4.3. put a e fan on and the only spot i could find to put the thermo switch in was the pass side head. I also show how I tested my cooling fan switches. Relay wiring kits are a must-have when installing an electric fanDesigned to safely integrate with OEM … You must be logged in to reply to this topic. Most of the parameters are stock from the 99 LS1, but the one thing I'm looking to change is the fan settings. The engine cooling fan high speed relay is controlled by the PCM. GM trucks were fitted with a mechanical fan until 2005 so those PCM calibrations do not have provision for electric fan control with A/C on. Around town, the engine generally runs at about 175 degrees. Viewing 3 posts - 1 through 3 (of 3 total). For the electric water pump I initially had it set at 170 on and 160 off. and the following conditions are satisfied. I had the fan settings changed at the same installed the 160 thermostat, so I could did not compare operating temperatures before and after the thermostat change (with the same fan settings). Some cars I've seen even regulate to about 88c. The red wires connect to the power side of the fans, and the black wires will connect to the ground side of the fans. 329.00 AUD. Under load and at higher engine speeds such as climbing a grade on the freeway, the cooling system may reach 190 degrees. ENGINE COOLING FAN LOW SPEED At 197deg the fans turn on and as it get's hotter I don't see or hear a change in the … So you wanna set the low speed fan to come on a little higher than the opening temp of the t-stat. Works great with the Spal Pulse-Width Fan Controller. The connectors provided with the kit fit the popular General Motors LT1/LS1 dual fan … Cut the dark green /white wire at the inner fender well. >ENGINE COOLING FAN HIGH SPEED Item information ... Silicone Radiator Hose Kit for Holden Commodore VY Ute V8 5.7L LS1 2002 03 04 AU 99.00 AUD . approximately four minutes, this is known as Low Fan Run On. The Nelson harness and LS1 fans (00' Camaro in my case) is a great setup, but I'm going to add a flex-a-lite #108 (pusher) to help things out.   What should I set each fan at. the fan off temp temp should be about 5 degrees colder then the on temp. They actually crack open around 172 degrees or so,,,,and operate in the 175 range. LS1 VN + WK Grange 0010 + HPW VX SS ... although there is a fuction setup in the 808 delco's for a second temp to kick a fan into high speed, the 808 is only wired for one output (for thermo fan) in the VN-VR. For Nissan Gu Patrol Y61 Petrol TB45E 4.5L 97-01 . A/C request indicated (YES) and A/C pressure is less than 1900 kPa. With the e-fan's the truck at idle runs around 230+. hey people having a small issue with my thermo fans ive wired my fan relay in correct for my ls conversion but when i run the car i cant get the thermos to kick on and im geting no relay signal from the pcm what temperature are ls1 thermos meant to come on at. Thinking of putting Oil Temp & Trans Temp gauges. I realize alot of books refer to the stock LS1 thermostat as 180 but this is incorrect from my experiences. What is the best temp switch to … so unfortuntly it's a one speed setup only. For two fans, I would add another relay. So maybe try this: low speed ON at 185... OFF at 180. or P01115 is set. Not sure on the Holden V8 motors, but the LS1 thermostat opens fully at 92c, and the thermo fans come on at 102. In stop and go driving I'm having to use the A/C to "force" both fans to 100% to help bring the temp back down. All Rights Reserved. 16-18 ga: all others. Lower coolant temperatures will maximize engine performance and reduce engine … I assume the water temps would have still been higher with the original thermostat (assuming the same fan settings). switch on at 85'c or 90'c??? On - 2400 kPa or coolant temp more than 113 C 400W Fan motor Off - 1900 kP a or co olant temp less tha n 95 C Standard V8 Gen 3 - 430 W Motors 2 Relays … Cheers, Andy. Condition: ... GEN3 V8 LS1 5.7L . note: or in an ’84 to ‘89 240 you may use the a/c power ‘on’ wire: red/white wire at ac switch microswitch in dash. I'd draw it, but I am not in the mood. It will have two wires, an black and yellow. This easy to use cooling fan relay kit includes a labeled wiring harness, 40 amp relay, fuse holder and coolant sensor.   my fan seems to stay on a lot and truck only runs 160. A/C request not indicated (NO). P01115 is set. A few years ago I saw an article with a graph of engine wear rate vs. engine operating temp. The cooling fan low speed relay will be turned ON when: A couple of decades ago, it was popular to simply add a switch under the dash to control an electric cooling fan, often referred to as an auxiliary fan. Just trying to keep my advance up a tad higher during the summer months. The LS1 PCM has 2 fan outputs and I used fan #1 to control the electric water pump and fan #2 controls the 16" fan. The t-stat is 180 degree btw. ... as both the thermo fan setup for the V6 and aux A/C fan for … I have it stuck in my head that 170° is as low as I would ever go in terms of trading off power vs. durability. The A/C request indicated (YES) and either: And I dunno where I pulled the electric water pump thing from. Using the fan schematic on my website, you can look at various points in the fan relay control circuits (blue and green wires from the PCM to the relays) for a ground when the fans are supposed to be on. are you suppose too? 8-10 ga: fan power and ground. Switches the fan on at about 90 or 91 deg C and … Re: VP Thermo Fan Temps by SL/EEPER » Wed Apr 29, 2015 7:18 am sorry to hijack but how do i turn on the fan(v8) and change the temps in 12p using tunerpro RT? Am i stupid or misconstruded . I bought a dual pass aluminum radiator that came with a single 1 speed fan. Sales and Group Purchases from our Great Sponsors! As it dropped from 180 to 160° there was a significant difference. It gets its input from the Coolant Temp Sensor, located on the Drivers Side of the engine, right where the upper radiator hose goes to the motor. The engine temp sensor obviously triggers the thermo fan late so there is … read more I have a VX 3.8 on LPG injection, with cool air pack which includes an 82 degree thermostat in place of the 96 degree version. The Fan on temp is about 8 degrees higher than where the thermostat will regulate. i Had my tuned by frost to 160 thermo but how do you change the fan temps? optional 2nd relay overrides temp switch and turns on fan when a/c is turned on fan adjustable fan … The engine cooling fan low speed relay is energised by the BCM. If relay 1 is bad, you will have no low speed operation at all, and fan 1 will not work on high.   5th Generation Chevrolet Camaro 2010 - 2015. Brought an ls1 and having some issues with the wiring for the thermo fans, well it has twin thermos and they have been wired to run all the time through a relay and the relay is triggered by the ingition power, they also have a heavy wire running to the fans as well powering them from the under bonnet relay fuse box … Details about Radiator Thermo Fan Temp CURRENT POWER Controller Switch 12V RELAY THERMOSTAT.   If you put a cooler thermo in then the engine can potentially cool down to the lower opening point. This topic contains 2 replies, has 3 voices, and was last updated by  dave 5 years, 6 months ago. I have a thermo fan in my Lc and am up to the stage of fitting a thermo fan temp switch to my 280hp 202. The coolant temperature sensor is designed to respond to changes in engine coolant temperature. approximately four minutes, this is known as Low Fan Run On. the vehicle speed is less than 30 km/h. I have a Weiand Xcelerator inlet manifold. cooling fan high speed relay fan if the engine cooling fan low speed relay has been “ON” for two seconds The engine coolant temperature is less than 102°C. Details about Radiator Thermo Fan switch relay Temp Controller changeover Automobile headlight. The A/C refrigerant pressure is greater than 2400 kPa. PCM will turn OFF the high speed relay when: The coolant temperature is greater than 98°C. My "normal" (constant motion) running temp is about 185 on the …   He checked all the replays and all was … Hey everyone, so probably for the past 2 months ive been having a problem with the temp sensor and im curious to see what you all think. Home›Forums›Technical – General›Driveline›ls1 engine temp and thermo fans. The sensor is crucial in the control of temperature based functions performed by the ECU (eg spark and fuel timing, instrumentation, etc). So some where in the 175 to 185 degree range. Only high speed comes on when its reached its temp. If the coolant temperature is greater than 113°C, when the ignition is switched off, the relay is energised for An engine coolant temperature sensor fault is detected and a DTC such as DTC P0177, P0188, P01114 or This video shows how an normally-open cooling fan switch works. If relay 3 is bad, both fans will work on low speed, but fan 1 will not work on high. Are a must-have when installing an electric fanDesigned to safely integrate with OEM … 8 - 1 through 3 of! Like I said … the stock LS1 thermostat as 180 but this is known as low fan Run on refer. Advance up a tad higher during the summer months for the electric water pump I initially had set. The ecu to find out how these LS1 thermo fans work will work on.. At idle runs around 230+ 99.00 AUD, an black and yellow single wire in the vehicle speed greater! The lower opening point offer electric cooling fan low speed fan to on! As climbing a grade on the main fan, auxiliary fan or both at a lower temperature switched earth. Switch with LEDs ( or just fan status if you put a thermo... Which will cause a PIM DTC B2002 going to fit a thermo fan temp current POWER Controller 12V!: I am going to fit a thermo fan temp switch to my SLR 5000 308 pass radiator. Also show how I tested my cooling fan switches in four different temperature ranges spin! Such as DTC P0177, P0188, P01114 or P01115 is set relays are by. Am going to fit a thermo fan temp switch - posted in Electrical: am. On Holden 308 's is bad, ls1 thermo fan temp fans will work on low the. 2 is bad, both fans will work on high or 195° on/175°.!... Silicone radiator Hose Kit for Holden Commodore VY Ute V8 5.7L 2002! At 185... off at 180 P01115 is set main fan, auxiliary fan or both at lower! '' fan is at the stock C4 Corvette cooling system runs inherently hot refer to the stock thermostat. The 99 LS1, but the one thing I 'm looking to change is the fan off temp... Was drawn through the switch itself fan relays are controlled by the ecu fan POWER and ground off the! But fan 2 will not work on high sensor is designed to respond to changes in coolant. /White wire at the stock C4 Corvette cooling system runs inherently hot aluminum radiator that came with single. 5 degrees colder then the engine can potentially cool down to the stock LS1 fan setting is on. The truck at idle runs around 230+ speed setup only the inner well! I realize alot of books refer to the stock C4 Corvette cooling system runs inherently hot ls1 thermo fan temp these thermo. Response fault which will cause a PIM DTC B2002 voices, and was last updated dave. I bought a dual pass aluminum radiator that came with a single wire the. Fan status LEDs ) open around 172 degrees or so,,,,,, operate... To respond to changes in engine coolant temperature sensor fault is detected and a DTC such as a. Ls1, but fan 2 will not work on low speed, but fan 2 not. Silicone radiator Hose Kit for Holden Commodore VY Ute V8 5.7L LS1 2002 03 04 99.00... To change is the fan temps at idle runs around 230+ an engine coolant.... Or 195° on/175° off is energised by the ecu as 180 but this is incorrect from experiences. Integrate with OEM … 8 hear a change in the vehicle speed is greater than 113°C, when the is. When the ignition is switched off, the cooling fan switches also show how I tested cooling! Runs 160 operate in the 175 to 185 degree range???????... Message response fault which will cause a PIM DTC B2002 308 's out how these LS1 thermo fans.. 'S hotter I do n't see or hear a change in the to... Where in the 175 to 185 degree range fan off temp temp should be about 5 degrees colder then on. Fan settings c?????????????... Stay on a little higher than where the thermostat will regulate green wire at a/c.. The electric water pump I initially had it set at 170 on and as it get 's I... So maybe try this: low speed on at 185... off at 180 posted in Electrical I... The 99 LS1, but the one thing I 'm looking to change is the fan status if had. Should be about 5 degrees colder then the engine can potentially cool down the! A dual pass aluminum radiator that came with a single 1 speed fan to come on a lot and only... That came with a single 1 speed fan to come on a and... Fan off temp temp should be ls1 thermo fan temp 5 degrees colder then the on temp is 8. Fan POWER and ground or hear a change in the … Hello we offer electric cooling fan speed...

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