Cooling fan relays
09-30-2018, 07:49 PM
#21
This should help::
Factory settings to turn on the cooling fans is ON at 226 degrees in low speed mode (both fans run but are electrically configured in series so that each fan has about 1/2 of battery volts across each motor so at slower than rated speed). Fans go off at 219 degrees or once the vehicle speed exceeds 35mph. If the coolant temp kept going up the fans go into high speed mode at 235 degrees. In high speed mode the electrical configuratio is changed from series to parallel. In parallel mode both fans have the full battery voltage across each fan motor so they run at full rated speed. They revert to low speed mode once the coolant temp reaches 226 degrees..
If you want the fans to come on sooner, turn on the AC and the low speed operation begins at coolant temp of about 185 degrees. High speed operation with AC on remains at 235 degrees.
Factory settings to turn on the cooling fans is ON at 226 degrees in low speed mode (both fans run but are electrically configured in series so that each fan has about 1/2 of battery volts across each motor so at slower than rated speed). Fans go off at 219 degrees or once the vehicle speed exceeds 35mph. If the coolant temp kept going up the fans go into high speed mode at 235 degrees. In high speed mode the electrical configuratio is changed from series to parallel. In parallel mode both fans have the full battery voltage across each fan motor so they run at full rated speed. They revert to low speed mode once the coolant temp reaches 226 degrees..
If you want the fans to come on sooner, turn on the AC and the low speed operation begins at coolant temp of about 185 degrees. High speed operation with AC on remains at 235 degrees.
05-25-2021, 11:53 AM
#25
03-06-2022, 05:53 PM
#28
need tuner near Tampa or lakeland
need tuner near Tampa or lakeland. Know any?
03-06-2022, 06:19 PM
#29
Moderator, Tech Contributor
Member Since: Sep 2013
Location: Cape Coral, Florida
Posts: 9,521
Received 2,124 Likes
on
1,689 Posts
03-08-2022, 12:14 AM
#30
Where is the southeast regional section
Where is the southeast regional section
03-08-2022, 05:13 AM
#31
Moderator, Tech Contributor
Member Since: Sep 2013
Location: Cape Coral, Florida
Posts: 9,521
Received 2,124 Likes
on
1,689 Posts
The following users liked this post:
douglasjre (03-08-2022)
