Cooling fans aren't working

HERZOG

MEMBER
1998 NISSAN SENTRA
4 CYL
2WD
AUTOMATIC
111,000 MILES

Engine cooling fans stopped working, ran hot wire to secondary fan and it works, replaced 2 fan fuses and relays

Monday, May 25th, 2015 AT 10:12 AM

4 Replies

WRENCHTECH

MECHANIC
20,758 POSTS

This isn't going to be as simple as asking someone online. It's an intricate circuit and someone with electrical knowledge is going to have to do some testing.

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Monday, May 25th, 2015 AT 10:57 AM

HERZOG

MEMBER
2 POSTS

Thank u so much for the response, it turned out to b the sensor in the thermostat housing

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Monday, May 25th, 2015 AT 11:16 AM

AZDANNO04

MEMBER
266 POSTS

Which sensor? The coolant sensor? I am having the same issue. I replaced with new fans/motors/relays but still not working. Which and where are the fuses located? 1998 Sentra ga16de, GXE, automatic.

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Friday, December 18th, 2020 AT 10:10 AM

KEN L

MASTER CERTIFIED MECHANIC
43,110 POSTS

Yep, this would be the coolant sensor which is located in the diagrams below along with the fuses. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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