The gauge failure posts cursed my car

Add me to the failed IVR club.

My IVR lost it's resistance (heater) wire.

Was driving along and WTF gauges pegged.

Turned key off costed to a safe place, reached under dash, pulled out the IVR and finished my drive.

Fuel gauge seems to have survived, sitting at a normal key off place, water temp on the other hand is sitting 20 degrees lower than low, ARRRRG!

It's my own fault, I thought about buying an RT-engineering IVR but thought the OEM IVR has been working fine for 54 years, it will be fine!!!


Just placed an order for new RT-engineering IVR

Will probably use a spair mechanical IVR I have in the meantime.

I checked the bad IVR before taking it apart.

OL ohms between ground and ign post
OL ohms between ground and output post
0 ohms between ign and output

Spare has about 62ohms. Where the OL is above.

When I took it apart everything looked good, but there was still OL ohms on the resistance / heater wire.

I removed the wire and there it was about 1/2 way through the winds it was broken.

Live and learn