Now came across this video. I have this same fan unit with relays and fuses on my land rover, originally was V8 but now a TD5. Its impressive the amount of air these fan move. Far better than any Visco fan system. The Volvo set up is superb.
Thnx for the video n info.. It rlly help as am A kind of blurr upon wiring&co... U do me a bit understand(hope it'll be more&more as ur explaination directly,.. ..clean&clea+ short&sharp. Be blessed always wll U& ALL whomever surround/arround'...juz gohead doin' waddever infomative/tutorial_shoot...coz it rlly3 help... Again TQ.
Great video! One thing that was missed... the main 12v hot wire running to the relay pack, should run through a ignition switch. If the ignition is in the off position the fan can’t run. If you wire it the way you explained, you turn off your ignition switch the fans would still run until the engine coolant temp or your AC pressure switch reach the desired “off” set point, which would be bad for the battery and alternator.
True, but this is how the OEM wiring is setup by GM ad well. The PCM will keep the fans on for about two minutes after the car is off if the engine is above operating temperature.
One problem: The wiring connections NEVER just twist the wires together while installing. While soldering wires is preferable, you can also use butt connectors, electrical tape, and heat-shrink to connect up the various parts of the circuit wiring.
Thanks for the great video. My only concern is what if the high speed is engaged (via temp sender) while ac is running. You’d end up with both switches grounded
Yes,it has happened to me but no issue, I've also done it on purpose and nothing happened the High speed sort of takes over I guess (not sure, not really an electrical guy).
Any ideas for wiring up the big Ford fans? Heard they can spike to 60 amps on startup and run 40 amps pretty constant on high. Volvo relay rated to 30ish. Maybe another starter seliniod or high amp relay? Best video on using those Volvo relays very thorough thank you.
@@silverado82454 how many amps does your aftermarket fan run on? Thinking a continuous selinoid would be a good idea on high wired from vovlo relay. Only $25 and handles 85 amps.
I have installed a 3 way switch inside the truck to control the fan manually either high or low ,I've had issues with the temp switch leaving the fan running after cool down, hope this helps you.
I used a high pressure switch on my c10 #25555657 from a older gm car, it fits on the high side port of my truck . switch is open until the pressure teaches 210 i think then it turns the fan on and goes off about 175 psi that way the fan is not running all the time. Hope this helps you.
I've done it with volvo relays on ,to me is the easiest way. The wireing is been done for you and the relays are very durable, if it goes bad you can get it in any part's store. Hope this helps.
Thank you for your help man and I feel kind a embarrassed to ask you again.. to hook up your air conditioning ? Did you use Different relay or The Volvo relay can do it all.. Thanks again 😬
@@danielviorato1333 The relay does it all,you just have to run a wire from the switch to the fan relay, either hi or low speed wich ever works best with your truck.
@@silverado82454 i found the exact relay you have as a spare in this video. I am running dual fans & i know i will run a temp sensor on the radiator return hose, but i’m not sure where to run the 2nd temp sensor line.. the engine is a 305 small block chevy with tbi from factory.
You need a factory high pressure switch from a early to mid 80’s front wheel drive GM car and put it on the high side port on your ac system, the switch has to be 2 pin and normally open wish means it would activate the fans when it reaches above 200 on the high side, is going to depend on the switch you get,they all have different pressure settings
Does anyone know where I can find a video where they show an electric fan conversion for a 2005 H2 Hummer? This is too complicated for me. I would need to see a video of how it is done on a Hummer H2 only then will I know.
We sell higher wattage electric fans at www.americanvolt.com/collections/electric-fans which includes radiator mounting kits. Various thermostat switch turn-on temps and NPT thread-in sizes available as well.
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Breaks the fuse cover, doesn't even skip a beat 0:33
Now came across this video. I have this same fan unit with relays and fuses on my land rover, originally was V8 but now a TD5. Its impressive the amount of air these fan move. Far better than any Visco fan system. The Volvo set up is superb.
I'm a dummy and this helped me on my LS swap. Thank you.
Appreciate ya vid. Will try this set up on my 54 Chrysler New Yorker
Nice little setup.
Thnx for the video n info..
It rlly help as am A kind of blurr upon wiring&co...
U do me a bit understand(hope it'll be more&more as ur explaination directly,..
..clean&clea+ short&sharp.
Be blessed always wll U& ALL whomever surround/arround'...juz gohead doin' waddever infomative/tutorial_shoot...coz it rlly3 help...
Again TQ.
Great video! One thing that was missed... the main 12v hot wire running to the relay pack, should run through a ignition switch. If the ignition is in the off position the fan can’t run. If you wire it the way you explained, you turn off your ignition switch the fans would still run until the engine coolant temp or your AC pressure switch reach the desired “off” set point, which would be bad for the battery and alternator.
True, but this is how the OEM wiring is setup by GM ad well. The PCM will keep the fans on for about two minutes after the car is off if the engine is above operating temperature.
Good job
Thank you
One problem: The wiring connections
NEVER just twist the wires together while installing. While soldering wires is preferable, you can also use butt connectors, electrical tape, and heat-shrink to connect up the various parts of the circuit wiring.
What if you don't have ac....can u use the temperature sensor that has 2 leads off the intake?
Thanks for the great video. My only concern is what if the high speed is engaged (via temp sender) while ac is running. You’d end up with both switches grounded
Yes,it has happened to me but no issue, I've also done it on purpose and nothing happened the High speed sort of takes over I guess (not sure, not really an electrical guy).
Any ideas for wiring up the big Ford fans? Heard they can spike to 60 amps on startup and run 40 amps pretty constant on high. Volvo relay rated to 30ish. Maybe another starter seliniod or high amp relay?
Best video on using those Volvo relays very thorough thank you.
I bought a 2 speed tbird v8 aftermarket fan and it ran fine with the volvo relay setup.
@@silverado82454 how many amps does your aftermarket fan run on?
Thinking a continuous selinoid would be a good idea on high wired from vovlo relay. Only $25 and handles 85 amps.
What about the temperature sensor??
Not too sure if you’ll see this comment, but if you had to choose would you wire the high speed to a switch over the low speed?
I have installed a 3 way switch inside the truck to control the fan manually either high or low ,I've had issues with the temp switch leaving the fan running after cool down, hope this helps you.
Wanted know how to get a ground signal when ac comes on? A trinity switch?
I used a high pressure switch on my c10 #25555657 from a older gm car, it fits on the high side port of my truck . switch is open until the pressure teaches 210 i think then it turns the fan on and goes off about 175 psi that way the fan is not running all the time.
Hope this helps you.
Make sure you put an o ring if you install this switch.
silverado82454 im working with 2002 f 150 ? Think it will work?
Thank you.
If the Head pressure is up at the same tme the cooling t-stat turns on the fan will both speeds be activated?
The high speed will supersede the slow one, and to clarify I've had both on and the relay was fine.
Do you have a video after all the instruction has been completed
I'll post one in a few days, I have it roughly install cus I'm debating on putting dual fans on the truck
Thanks
One more question se do you have to use any of the relays or just the Volvo ones.. Thanks for your time
I've done it with volvo relays on ,to me is the easiest way. The wireing is been done for you and the relays are very durable, if it goes bad you can get it in any part's store.
Hope this helps.
Thank you again this is a what I need
Thank you for your help man and I feel kind a embarrassed to ask you again.. to hook up your air conditioning ? Did you use Different relay or The Volvo relay can do it all.. Thanks again 😬
@@danielviorato1333
The relay does it all,you just have to run a wire from the switch to the fan relay, either hi or low speed wich ever works best with your truck.
Thank you . I wire the relay hook up 2 fans it’s working perfect . your video was very helpful thanks again. Take care
What year & model volvo did you get the relay from?
I've got the relays from a 2004 volvo c70,i think most volvos from that generation have the same system but not 100% sure of that, good luck 👍
@@silverado82454 i found the exact relay you have as a spare in this video. I am running dual fans & i know i will run a temp sensor on the radiator return hose, but i’m not sure where to run the 2nd temp sensor line.. the engine is a 305 small block chevy with tbi from factory.
You need a factory high pressure switch from a early to mid 80’s front wheel drive GM car and put it on the high side port on your ac system, the switch has to be 2 pin and normally open wish means it would activate the fans when it reaches above 200 on the high side, is going to depend on the switch you get,they all have different pressure settings
What temperature sensor are you using with that relay?
On at 180 with a 160 thermostat.
Does anyone know where I can find a video where they show an electric fan conversion for a 2005 H2 Hummer? This is too complicated for me. I would need to see a video of how it is done on a Hummer H2 only then will I know.
Somebody call fireman sam
WHAT WAS TOTAL COST?
About $75 ,but I bought 2 relays and 2 different fans that day.
We sell higher wattage electric fans at www.americanvolt.com/collections/electric-fans which includes radiator mounting kits. Various thermostat switch turn-on temps and NPT thread-in sizes available as well.