Trans temp guage - this CAN'T be right !?
#327594
05/24/09 08:47 PM
05/24/09 08:47 PM
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Puyallup, WA
StealthWedge67
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Installed a trans temp guage in the Satellite today. At the advice of my trans guy, I plumbed the sending unit into the out line, instead of the pan. Went for a quick drive and about freaked out! Temp guage went to 150 as soon as I started the car (cold), and went to over 250 on a 5 minute drive!  . Back in the garage, I checked the fluid at the dipstick; it was barely even warm. felt the cooler lines, they were nice and cool. The guage can't be right (??).What gives? It's an auto-meter electric guage. wired from sender to (S) side of guage: (I) side of guage to 12v source at fuse-box. pretty straight forward. What could be wrong here?
Last edited by GEnsrud; 05/24/09 08:56 PM.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Trans temp guage - this CAN'T be right !?
[Re: gamagoat6x6]
#327596
05/24/09 10:25 PM
05/24/09 10:25 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
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Circle Track
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Lincoln Nebraska
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Your hookup sounds correct, when you take it off you might stick it in the coolant & see how it acts.
live every 24 hour block of time like it's your last day on earth
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Re: Trans temp guage - this CAN'T be right !?
[Re: Jeremiah]
#327598
05/25/09 12:32 AM
05/25/09 12:32 AM
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Puyallup, WA
StealthWedge67
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I'll pull the sending unit (arghh), and stick it in a pan of hot water with a thermometer in the water. I'm sure I'll find that the guage / sending unit is about 120* off.
Next qustion: at this point, Is it safe to assume its the sending unit?, or could the guage be the problem?
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Trans temp guage - this CAN'T be right !?
[Re: StealthWedge67]
#327599
05/25/09 12:40 AM
05/25/09 12:40 AM
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1_WILD_RT
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Quote:
It's an auto-meter electric guage. wired from sender to (S) side of guage: (I) side of guage to 12v source at fuse-box. pretty straight forward. What could be wrong here?
Autometer hookup uses three wires, ignition (12v) Sender & Grd... you only list 12v & sender...  When viewed from the back of the gauge 12v goes to the left upper post, sender goes to right upper post & ground goes to the center lower post...
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Re: Trans temp guage - this CAN'T be right !?
[Re: StealthWedge67]
#327600
05/25/09 12:41 AM
05/25/09 12:41 AM
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Anonymous
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Anonymous
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Are you absolutely sure the sender is grounded?
Some of these gauges are a "bridge" circuit and that means there's a terminal on the CASE of the gauge which must be grounded.
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Re: Trans temp guage - this CAN'T be right !?
[Re: 1_WILD_RT]
#327601
05/25/09 12:49 AM
05/25/09 12:49 AM
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Puyallup, WA
StealthWedge67
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You're smart; and I'm stupid! Looking at the diagram, there is a ground, and I did not hook it up. Could this cause it to miss-read, however??
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Trans temp guage - this CAN'T be right !?
[Re: StealthWedge67]
#327602
05/25/09 01:20 AM
05/25/09 01:20 AM
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Joined: Jan 2004
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1_WILD_RT
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Quote:
You're smart; Sometimes and I'm stupid! No, just in to much of a hurry BTDT now I read the book Looking at the diagram, there is a ground, and I did not hook it up. Could this cause it to miss-read, however?? Absolutely....
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Re: Trans temp guage - this CAN'T be right !?
[Re: 340SHORTY]
#327604
05/25/09 01:50 AM
05/25/09 01:50 AM
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Puyallup, WA
StealthWedge67
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Thanks Randy!! added the ground, problem solved. reads right where it should. Crazy thing is, I read this diagram, and never saw the ground. Sometimes I guess you see what you want to see (??)
Thanks again, guys!
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Trans temp guage - this CAN'T be right !?
[Re: StealthWedge67]
#327607
05/25/09 07:40 AM
05/25/09 07:40 AM
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Jacksonville, FL
burnt_o_matic
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Quote:
I read this diagram, and never saw the ground
Don't worry, we all do it, sooner or later. Strange that there's no word for it (that I know of).
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I don't know a female that would find the humor in a car battery sitting on the kitchen counter with a temp gauge hooked to it. 
