Dan & TWeEMBI

        Since Your Van is a ’90 You should have a 30amp fuse on that circuit so You want to have a wire that will carry @ least that amperage to the dash & back which means a 10ga wire should be used ~ Probably a safer more energy wise & professional way to do it would be let the circuit be completed via relay placed close to the Rad’ sensor/switch & then a low load smaller wire (or wires if like Me You want to control both speeds) can be run to the New Switch on the dash ~

                                                        ORR ~ DeanB

> On 7 Mar , 2023, at 5:03 PM, Dan N <dn92610@GMAIL.COM> wrote:
> 
> Thanks to both of you for the inputs...
> 
> DeanB... the T-Tap is a good idea, I will try it... Could you suggest what
> gauge to use from the toggle switch to the radiator sensor?
> 
> dan,
> 
> On Tue, Mar 7, 2023 at 3:34 PM OlRivrRat <OlRivrRat@comcast.net> wrote:
> 
>>                Dan & TWeEIMC
>> 
>>        Did Just that not long after I got My 1st H2OBoxer back in ’83 &
>> also did it to My ’90 not long after I got it in ’06,,, Mine are connected
>> to the High Speed circuit since My aim was to be able to switch the fan on
>> high as I would be approaching a significant climb while loaded with a
>> bunch of boating & camping gear & with a Canoe or 2 on the roof rack & a
>> Raft trailer with a Raft or 2 hitched to the rear, in order to keep the
>> Cooling System from even thinking a little bit about heading for high
>> temps,,, It has worked out great for many years & I have also considered on
>> numerous occasions about replacing the Single Throw switch with a Double
>> Throw switch to provide manual control of the Low Speed as well ~
>> Using “T-Tap” on the wires right @ the Radiator Sensor/Switch makes for a
>> very simple way to do the mod’ ~ If You are not familiar with “T-Tap” just
>> Google it ~
>> 
>>                                                        ORR ~ DeanB
>> 
>> 
>>> On 7 Mar , 2023, at 2:17 PM, Dan N <dn92610@GMAIL.COM> wrote:
>>> 
>>> hi all,
>>> 
>>> I am thinking about installing an override switch on the vanagon radiator
>>> sensor so I can turn the fan ON/OFF whenever I want. The van is a 1990
>> 2.1
>>> WBX, no A/C.... in case the sensor fails.
>>> 
>>> Would using 2 wires from the toggle switch and attaching them on the 2
>>> wires on the sensor at the bottom of the radiator work? Any risk or
>> problem?
>>> 
>>> thank you,
>>> 
>>> dan
>> 
>>