Anyone have problem with factory gauges??

[buc1096]

My 2005 PSD gauges are acting strange. Today while pulling my 5th wheel to get washed my temp gauge went all the down and then half way up. The temp kept going up and down, but the motor ran fine. I've had issues with my fuel gauge not reading properly for the past 2 years but that's about it. Any suggestions what might cause this.

[dieseldan2005]

Temp sending unit maybe? The fuel gauges are iffy on almost all the super duties. I have seen those bad on 99's 03's 04's, etc... I would try and hook up a mobile scan tool to your ecm and monitor your coolant temp, just to make sure you don't have an issue with a bad egr cooler or head gaskets.

[buc1096]

Originally Posted by dieseldan2005

Temp sending unit maybe? The fuel gauges are iffy on almost all the super duties. I have seen those bad on 99's 03's 04's, etc... I would try and hook up a mobile scan tool to your ecm and monitor your coolant temp, just to make sure you don't have an issue with a bad egr cooler or head gaskets.

Thanks, I'll try scanning to see what results I get. Hopefully egr/cooler aren't bad, I replaced motor with another 6.0 w/ only 22,000 mile approx 15k ago. I think I'll need to invest in a monitor or gauge pod to watch everything just to be safe.

[dieseldan2005]

Just curious, what happened to the old one? My auto enginuity will run coolant temps, its a pretty in depth scan tool. Almost too much for me. lol.