Towing this weekend I noticed that when my EGT's were about 1050° the needle would bounce from 1000-1100° at about a 2Hz rate, and then back to stable at 1050°. It did this 3 or 4 times on 2 grades (also did this once last winter at the 500-600° range). Otherwise it's smooth and operates as it did when new in 2007.I presume the stepper motor is failing? Could it be the thermocouple? Any opinions on if this will effect the reading when it's not bouncing?

I would pull and inspect the probe to see if it burnt or damaged. I know there isn't much you can do to test the probe or signal amp so it might be a part replacement thing... I would call ISS Pro and ask there tech's on the issue and see if they turn up something...

I would but the gauge isn't ISSPRO's and the company that made it is out of business.

I would but the gauge isn't ISSPRO's and the company that made it is out of business.

My Bad... :banghead: I wasn't paying attention I just got done with a ISS Pro thread on ITD... But Dipricol are gone your right... So ummm...

I have gotten some decent quotes on a full compliment of ISSPRO's, but its still ouch!!Can't decide.. wouldn't mind the EV2's.. would mind the bill :-)Boost, Pyro, DP, Oil, Fuel...

Where have you gotten the best price on isspro's at? I am trying to sell my commander so I can buy mechanical gauges and since di pricol is gone, isspro it is.

jkidd. I really don't want an unmatched set, but a full set of new gauges is not in the cards.. just bought too many other things :-)Think I may do the pyro and wait out the others. At least the pyro is separate from the rest.

I dont want an unmatched set either but I have a good di pricol fuel pressure gauge. I dont know if the isspro ev or ev2 will match my di pricol better?