Go Back   Tahoe Forum - Chevy Tahoe Forum > 1994 - 1999 Chevrolet Tahoe/GMC Yukon Year Models > Technical Discussions

Welcome to the Tahoe Forum - Chevy Tahoe Forum.
Register to remove these ads.


Technical Discussions This forum is for technical discussions related to customizing your Tahoe/Yukon



Reply
 
Thread Tools Display Modes
Old 12-31-2008, 01:23 PM   #1
BIGFOOT
Tahoeforum Noob
 
Join Date: Dec 2008
Location: Indy
Posts: 2
BIGFOOT is on a distinguished road
Default Temperature guage not working


Register to remove these ads. It's free!
I just replaced the therostat in my 1995 Tahoe 5.7l. Three wires were grounded on the nut that goes on one of the thermostat bolts. I had to replace these.

I double-checked the new electrical eyelets that I repaired and they seem fine, even jumped them directly to the battery neg and still no temperature guage.

Any clues on how to best diagnose this problem?

The other guages all work.
BIGFOOT is offline   Reply With Quote
Old 12-31-2008, 07:09 PM   #2
95TwinTT
Full Access Member
 
95TwinTT's Avatar
 
Join Date: Mar 2008
Location: Minnesota
Posts: 328
95TwinTT is on a distinguished road
Default

I'm going to guess the wire came loose on the sensor. You are looking for a dark green single wire that goes to the sensor. If memory serves, it is on the drivers side head towards the front, near the exhaust manifold.

The other coolant temp sensor has two wires going to it. Those wires are black and Yellow. That sensor is only used by the computer.

There is also a Intake Air sensor that looks like a coolant sensor, but that one has Black and Tan wires.

The dark green wire is the only one involved with the dash gauge. :thumbsup
95TwinTT is offline   Reply With Quote
Old 01-02-2009, 11:38 AM   #3
BIGFOOT
Tahoeforum Noob
 
Join Date: Dec 2008
Location: Indy
Posts: 2
BIGFOOT is on a distinguished road
Default It was a bad thermostat

95TwinTT:

I realized that the heater barely was putting out heat, so the temp guage wasn't bad, the engine just wouldn't heat up.

First checked for an air bubble that might have caused the coolant sensor to not respond by removing it (it is right next to the thermostat housing on the intake manifold) but no bubble came out.

So all I could figure was the thermostat opens at too low a temp. So I went to an AC Delco shop and for $7 bought a factory replacement, made in the good ole USofA. Problem resolved.

The first thermostat I tried was a Mr. Gasket "high performance" (meaning high flow)model. It was made in China.

Lesson-learned (again) - factory parts are almost always the way to go. Oh, and always buy them from an AC Delco parts store, not a dealer (cheaper).

Last edited by BIGFOOT; 01-03-2009 at 08:22 AM.
BIGFOOT is offline   Reply With Quote
Old 01-03-2009, 01:12 AM   #4
JP422
Full Access Member
 
Join Date: Sep 2008
Location: Torrance
Posts: 239
JP422 is on a distinguished road
Default

Wow... nice find on the fix... I also agree that AC Delco parts seem to be much better quality than most aftermarket replacement parts. On a side note... I noticed most of my AC Delco parts were made in Mexico! haha.. I'll take that over China.
JP422 is offline   Reply With Quote
Reply

Bookmarks

Tags
temp guage, temperature


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



 
Advertisement

Other Sponsors






All times are GMT -4. The time now is 02:13 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum