FLUCUATING TEMP GUAGE PROBLEM

1998 Honda Civic

Tiny

pmp

June, 11, 2012 AT 2:45 AM

Hello, I have this ongoing problem and I dont know what to do and im sick of it already. The cooling system is flucuating and if I let the car sit and idle the fan comes on normally. If I take it for like a 20 minute drive then get to a light or a drive thru the temperature guage rises until a certain temp. (I brang it to a shop and they said it was the fan switch so I changed it and I still have the same problem. They also said the fan isnt coming on till 260. I also have a 1-3 minute video of me parked and what the guage does and where in the guage the fan turns on. What else could it be?

3 Answers

Tiny

hmac300

June, 11, 2012 AT 2:30 PM

Try replacing your coolant temp sensor it's on the right rear of cyl head

Tiny

pmp

June, 11, 2012 AT 4:09 PM

Is there any way to test it with a volt meter

Tiny

hmac300

June, 11, 2012 AT 4:52 PM

You can test to see if there is volts going to it and out but that's about all. You can measure ohms-resistance it shold be at 0 degrees 5000 ohm 104d-1000 ohm176d-500 ohm. This could be aconnection problem or a ground wire loose in dash maybe. If yo have one of those infrared temp gauges, see what it reads when your fan kicks on

Please login or register to post a reply.

Radiator Replacement Kia Sportage
Radiator Replacement Mercedes Benz ML 500
Thermostat Replacement Chevrolet Blazer
Thermostat Replacement Mercedes Benz C230
Thermostat Replacement Chrysler PT Cruiser