Temp gauge problem (NOT OVERHEATING)

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Mar 30, 2013 | 07:51 PM

#16

Richieb9

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Joined: Aug 2011

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From: Mesa, AZ

Year: 1993

Model: Cherokee

Engine: 4.0 liter High Output

Quote:

Originally Posted by Radi

It's supposed to go in place of the sending unit, not in between. Bend the leads on the resistor and plug it in the harness plug in place of the sender.

Well on my plug there is not two leads just one. This was covered above. I believe that only works on newer models where the coolant temp and engine temp sensor are on the housing of the thermostat

Mar 30, 2013 | 08:20 PM

#17

Radi

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Joined: Apr 2012

Posts: 5,302

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From: Wisconsin

Model: Cherokee

Quote:

Originally Posted by Richieb9

Well on my plug there is not two leads just one. This was covered above. I believe that only works on newer models where the coolant temp and engine temp sensor are on the housing of the thermostat

Ah. If you have a single wire the resistor goes between the wire and ground. Sorry I missed that.
At any rate the test you did verified the gauge reading varies with resistance, leaving the sender as the issue.

Mar 30, 2013 | 10:59 PM

#18

Richieb9

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Joined: Aug 2011

Posts: 113

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From: Mesa, AZ

Year: 1993

Model: Cherokee

Engine: 4.0 liter High Output

Quote:

Originally Posted by Radi

Yeah that's what it would seem like. Just seems crazy to get a bad unit right out of the box!!! Ugh. Next time I'm going to NAPA

Mar 30, 2013 | 11:19 PM

#19

Radi

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Joined: Apr 2012

Posts: 5,302

Likes: 23

From: Wisconsin

Model: Cherokee

Quote:

Originally Posted by Richieb9

Just seems crazy to get a bad unit right out of the box!!! Ugh.

I wish I could say it didn't happen often, but it does. Some are bad out of the box. Sometimes it's the wrong part in the right box. Sometimes the computer gets it wrong entirely. At least this isn't a half a day to get back out!