Definitely try the old sensor. Fans not kicking on cuz you are at normal
Operating temperature at 3/4th the gauge. You can even check it with an
infrared heat gun in the engine to make sure. My rad fan has been
malfunctioning for a couple years now I have  dealership installed ac so
it’s not an easy fix for me cuz I suck at electrical. when I hit traffic I
make sure I’m by the shoulder just in case I gotta pull Over and shutter
down.

On Tue, Jun 1, 2021 at 8:16 AM Bruce Todd <beeceetee@gmail.com> wrote:

> Thanks Thomas - that is helpful.  I did replace the sensor so that could
> be the issue.  Still have the old one so perhaps could reinstall it until I
> sourced one that reads a bit more ‘normal’.
>
> Still questioning the radiator thermo switch though - love to hear the fan
> come on and know where that level sits on the temp gauge when driving with
> the current newly replaced coolant temp sensor.
>
> Bruce
>
> On Tuesday, June 1, 2021, Thomas Casal <thomas.casal@gmail.com> wrote:
>
>> If you had your coolant temp gauge sensor replaced that may be the reason
>> for the high reading. The new sensors aren’t calibrated right so they run
>> high even though the vanagon is running at normal temperature. Per Dennis I
>> sourced the part luckily from vw. I think there were two in the entire
>> north east and one was 45 minutes from my house, the parts guy at the
>> dealership when I called said I don’t think I have it but I knew he had it
>> cuz I already checked their inventory haha. He was surprised. I paid 60$
>> for it but my gauge sits right in the middle.
>>
>> On Mon, May 31, 2021 at 11:07 PM Bruce Todd <beeceetee@gmail.com> wrote:
>>
>>> I have yet to really drive my Syncro Westy much since having the
>>> injectors
>>> and rockers installed earlier this month - also added an aluminum coolant
>>> tank and replaced the front heater core and fan - all stuff I wanted to
>>> have ldone for a few years.  Because of all the hoses and mess I elected
>>> to
>>> get the work done at my VW mechanic of choice not to mention I didn’t
>>> want
>>> to learn from my mistakes when installing the rockers.  Since getting the
>>> van back the coolant temp climbs higher than I like - going to about 75%
>>> and clearing the warning light and it seems the fan is not kicking in -
>>> so
>>> some unfinished business to have completed in the next week or so - it
>>> doesn’t go any higher than the 75% mark...but still makes me nervous
>>> enough.
>>>
>>> Anyway the point of this ramble is that last Friday evening I took the
>>> van
>>> out on a sunset cruise around Vancouver with my wife.  We drove pout to
>>> the
>>> University of British Columbia and down past the beaches.  I had a grin
>>> from ear to ear shifting through the gears and feeling and hearing a very
>>> smooth 2.1 WBX.  It was how I imagine driving the van was like when it
>>> was
>>> only a pup and not as long in the tooth.  Certainly a spring in her step
>>> -
>>> and it sounds stronger.
>>>
>>> I am very happy with results so far of this upgrade and just got to get
>>> the
>>> coolant temp calibrated and confirm if the radiator fan thermo switch is
>>> good...the fan works when I jump it - system was bled properly as far as
>>> I
>>> can determine.
>>>
>>> Bruce
>>>
>>> On Monday, May 31, 2021, Karl Mullendore <tdiguru@westyventures.com>
>>> wrote:
>>>
>>> > Marco knows what he's doing. The results will be proven on an actual
>>> engine
>>> > dyno, which I know he is putting together or has already. Four-hole
>>> modern
>>> > injectors DO make a few more ponies through better atomization. I've
>>> been
>>> > running them a couple years, before he started offering them. I'm sure
>>> he
>>> > will
>>> > show the proof on the dyno for the ratio rockers as well. But -
>>> > No mention of his complete new, modern FI / ignition system to replace
>>> the
>>> > antiquated originals? His turbo system that has been tested and proven,
>>> > 150 hp
>>> > as  starting point? Everything he is building is top-shelf, tested, and
>>> > worthwhile IMO. IIRC, he is/was a master tech with a Porsche racing
>>> team.
>>> > Have you seen the dyno test videos of two of his 2.1 wbx turbo drag
>>> race
>>> > engines? :)
>>> >
>>>
>>