I have a 240 SX with an RB 25DET swap. Where is the cooling fan thermal switch located?
My fan will not come on when engine warms up thank you.
Cooling Fan Thermo Switch Location ?
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[email protected]
- Posts: 12
- Joined: Mon Dec 30, 2019 5:28 am
- Car: 1994 Nissan 240sx RB 25 DET swap
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NukeKS14
- Posts: 310
- Joined: Wed Apr 10, 2019 2:50 pm
- Car: 1995 240SX SE - KA24DE-T
AC Cobra Mk IV Rep.
2020 Civic Si
Re: Cooling Fan Thermo Switch Location ?
Is it an aftermarket fan? The OEM S14 fan is controlled by the ECU. What 240sx chassis, S13 or 14?
If S14, there is a fuse and a pair of relays to check.
First is a 7.5A fuse on drivers side floorboard. Its labeled AC I believe. Neither slow or high speed fan will come on with that fuse blown or missing.
There are 2 relays in fusebox under the hood for high and low fan speed.
Short answer. Its controlled by ecu. Long answer depends on your chassis and ecu ,(stock, aftermarket) on where to start troubleshooting.
If S14, there is a fuse and a pair of relays to check.
First is a 7.5A fuse on drivers side floorboard. Its labeled AC I believe. Neither slow or high speed fan will come on with that fuse blown or missing.
There are 2 relays in fusebox under the hood for high and low fan speed.
Short answer. Its controlled by ecu. Long answer depends on your chassis and ecu ,(stock, aftermarket) on where to start troubleshooting.
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[email protected]
- Posts: 12
- Joined: Mon Dec 30, 2019 5:28 am
- Car: 1994 Nissan 240sx RB 25 DET swap
Re: Cooling Fan Thermo Switch Location ?
Great! Thanks for your reply… The car is a S 14 Zenki ?
1995. So you're saying if that's the case the fan is controlled by the EC you? Therefore I should check relays and a fuse ?
1995. So you're saying if that's the case the fan is controlled by the EC you? Therefore I should check relays and a fuse ?
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[email protected]
- Posts: 12
- Joined: Mon Dec 30, 2019 5:28 am
- Car: 1994 Nissan 240sx RB 25 DET swap
Re: Cooling Fan Thermo Switch Location ?
Great! Thanks for your reply… The car is a S 14 Zenki ?
1995. So you're saying if that's the case the fan is controlled by the EC you? Therefore I should check relays and a fuse ?
1995. So you're saying if that's the case the fan is controlled by the EC you? Therefore I should check relays and a fuse ?
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