temp gauge not working, not sure about fan

Reply Subscribe

Thread Tools

Search this Thread

Jun 13, 2010

bookem

Thread Starter

Registered!!

Joined: Jun 2010

Posts: 1

Likes: 0

Rep Power: 0

bookem is an unknown quantity at this point

temp gauge not working, not sure about fan

Hi all,
My son just bought a 1990 civic hatch as a first car.
It had the motor replaced some time ago (used)
I searched the engine number D15B2 and it seems to be the right engine for that time piriod.
But the temp gauge is not working, so we have no idea what temp the engine is running at.
Also I am not sure if the fan is working, we unpluged it and ran power from battery and fan did not come on. Didn't ground though.
Any Help would be Greatly appreciated Thanks dan

Jun 14, 2010

sdaidoji

PITA Admin

Administrator

iTrader: (1)

Joined: Dec 2008

Posts: 15,178

Likes: 1,605

From: TN

Rep Power: 367

Re: temp gauge not working, not sure about fan

Depends what do you mean ground - if you placed both battery poles against the right connectors, it should have come on.
Do you hear anything or feel loss of power? DID YOU DRIVE IT without knowing how the temperature is?

Jun 14, 2010

CrewChief

Remebers the old days

Hey! Look At Me!! I'm a Supporting Member!!

iTrader: (1)

Joined: Oct 2002

Posts: 987

Likes: 1

From: Bossier City, LA

Rep Power: 298

Re: temp gauge not working, not sure about fan

You have to add power and ground to the fan. The fan is controlled by a grounding relay. check the fan by hooking up power and ground to it. If it does not work. replace with a hayden slimline fan from any autoparts store (youll thank me...they are great and an easy instal). If it works then move to replacing the temperature sensor. if still no fan then you have to change the fan switch sensor aswell.

Last edited by CrewChief; Jun 14, 2010 at 10:25 PM.