Temp gauge inop

Reply Subscribe

Thread Tools

Search this Thread

Jun 19, 2010 | 06:03 PM

#11

1Bear

TECH Fanatic

iTrader: (1)

Joined: Aug 2006

Posts: 1,410

Likes: 8

From: Jones Creek, Texas

Quote:

Originally Posted by budhayes3

Any time Tim, you know I'm always glad to share pictures

I got mine from JPCustoms, but I know that you can find them cheaper. The 99's are wierd and something happens where you get an airbag light or something like that when you install one of the different clusters with the temp gauge/120mph speedo, and the one from JPCustoms is already modified to fix that, so I took the easy, but more expensive route.

It's been so long since I've seen a stock C3/Denali instrument cluster and not an Escalade or aftermarket unit, that it's actually refreshing. JPCustoms had a lot of cool stuff, they were fairly expensive, but put together some otherwise sometimes hard to locate parts. Also, as you mentioned the '99 & '00 models will illuminate an a light when a cluster from an '01 / '02 is installed. I actually thought it was the alternator light, but whatever. JPCustoms modified the units in whatever way was necessary to make them truly plug & play, but unfortunately they have since went out of business. My steering wheel came from them.

Jun 20, 2010 | 07:31 AM

#12

fastnblu

TECH Senior Member

iTrader: (2)

Joined: Mar 2008

Posts: 5,718

Likes: 1

Quote:

Originally Posted by budhayes3

Finally got my truck back on the road today, popped the updated BlackBear PCM in, installed the new relays into my fan harness,... Everything was great, hooked up a scan tool to see how everything was doing, LTFT's were close to zero, everything was working as it should, ... when suddenly the temp gauge dropped from 185ish to 160 and stayed there. I pulled over and took a quick look at the temp sensor in the head, it was plugged in and the wires look good, so my gut says that the stepper motor took a crap. What sucks is that this is a Denali cluster, and it doesn't even have a ton of miles on it...

anyway, enough BS-ing...when I get a chance I'll test the wiring (I'm sure that there's a test that I can do where I ground one of the wires or jump them out of something...unfortunately I'm packing since I'm moving and I already packed my service manuals), and the sensor probably has a resistance test that I can do...but, if it is a stepper motor, where's the best place to get one?

X25.168 updated stepper motors are what I believe you're lookin for. I'll call ya about this.