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Issue with alty or thermo or both?

2of9

Well-known member
Joined
Aug 29, 2007
Messages
869
Location
IGH, MN
First off, I have the "old school" Technomotive Stage 3 ECU Chip. I can choose to have a battery gauge, octane, spark, Injector Duty Cycle, etc on my boost gauge. As of now, I have the Battery Gauge (volt) on. On the battery gauge, having five to six bars (on the stock boost gauge) means that my battery voltage is running at it's best...having 3 or 4 bars is on the border line of "battery/alty suffering" or something is wrong.

Well, just about 2 days ago my alternator/thermo gauge has been goin up and down on me.
Here's the deal(while driving on highway); when ever my "volt" gauge shows me that it's full, the thermo gauge is on the first line near the "H" and sometimes the thermo needle will past the first line near the "H" just a bit but NEVER reaches the orange.
Than when my "volt" gauge is at about 10-12volts (3-4 bars), the thermo goes back to normal. It's back and forth with the gauges. Whenever I have a full gauge, the thermo needle jumps straight to the first line near "H". And than whenever ever I have the 3-4 bars, the thermo needle is dead in the middle. I'll do an alty test later tonight and check the battery also. (I'm in class right now). Help is much appreciated! thanks!

Things I've noticed:
- I've checked the coolant and I've lost none since I fixed the bolts on the turbo.
- Alty belt is making "screeching" noise when I start it up.
- Battery seems to have spilled small amounts of it's liquid on top of itself.
 

Rausch

Well-known member
Joined
Dec 21, 2004
Messages
12,049
Location
Cleveland, OH
Quote:
Battery seems to have spilled small amounts of it's liquid on top of itself.

.....err. Start there.

Check the voltage from the ALT. when it's running at the battery. It sounds like the voltage regulator went bye bye and is now cooking the batt. If you see something on the order of 15v+, or ~12v-, you have an issue.
 

iceman69510

Turn Right Racing
Staff member
Joined
Mar 5, 2001
Messages
10,964
Location
Michigan
I would suggest looking at belt slippage too, but if I am reading correctly, your two symptoms are appearing to operate opposite of that.
 
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