Replacement front radiator fans

[shacky]

Been dealing with slight overheating after long idling. Switched relays around with no effect. Turning on A/C and recirculate does not turn on fans. Have witnessed drive side fan come on for a minute at most.

Thinking I need to replace fan ballists and probably fans too.

I see feedback on non Porsche fans that they do not come balanced and have quite a bit of vibration especially in high speed mode,

Any advice is very welcome 🙏

[blue62]

Originally Posted by shacky

Been dealing with slight overheating after long idling. Switched relays around with no effect. Turning on A/C and recirculate does not turn on fans. Have witnessed drive side fan come on for a minute at most.

Thinking I need to replace fan ballists and probably fans too.

I see feedback on non Porsche fans that they do not come balanced and have quite a bit of vibration especially in high speed mode,

Any advice is very welcome ��

Have you scanned the OBDII live data to see what temps you are reaching??
Also what temps the fans are triggering at??


Bentley book says:
Low speed kicks on above -206.2 Degrees F or A/C switched on.
High speed kicks on above 215.6 Degrees F .

So if they don't kick on with low speed when you turn on the A/C it could be the ballists

[shacky]

Originally Posted by blue62

Have you scanned the OBDII live data to see what temps you are reaching??
Also what temps the fans are triggering at??

Bentley book says:
Low speed kicks on above -206.2 Degrees F or A/C switched on.
High speed kicks on above 215.6 Degrees F .

I lost me OBDII reader 🙄. Those temps seem high! But low fans not coming on with A/C. BTW do you have to be on recirc and A/C to turn on fans? Someone told me that but I always thought just turning on A/C does the trick.

[blue62]

Originally Posted by shacky

I lost me OBDII reader 🙄. Those temps seem high! But low fans not coming on with A/C. BTW do you have to be on recirc and A/C to turn on fans? Someone told me that but I always thought just turning on A/C does the trick.

Just A/C on
Nope those temps are the spec. for the Boxster.
Taken from the Bentley service manual
Right were my 2000S kicks the fans on at.

[shacky]

Originally Posted by blue62

Just A/C on
Nope those temps are the spec. for the Boxster.
Taken from the Bentley service manual
Right were my 2000S kicks the fans on at.

Not the highest in this pic. It will go up to end of the “0”. I guess that would be over 200

[shacky]

Can’t attach pic

[blue62]

Originally Posted by shacky

Can’t attach pic

IF your trying to show the temp gauge on your instrument panel that reading is not always the temp that the ECU/DME sees.
That is why I asked in a previous post if you had an OBDII scanner to read your live data.
The ECU/DME sees the temp the temp sensor is reading not the temp the gauge on the instrument panel is showing

[Anker]

If it doesn't turn on with A/C, but turns on high when hot, then it is most likely either the ballast resistor, or the relay. If it doesn't turn on ever, then it is most probably the fan itself.

[shacky]

Originally Posted by Anker

If it doesn't turn on with A/C, but turns on high when hot, then it is most likely either the ballast resistor, or the relay. If it doesn't turn on ever, then it is most probably the fan itself.

I swapped the low and high relays for both left and right and no difference. I did not try jumping relay plug.

[mikesz]

When I had issues with my fans I used a jumper in the relay socket to figure out one fan wasnt working at all the other was only on 1 speed. Pedro has a good diy that is what I used as a guide.