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Trans Temp Gauge IN!
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Postmaster
Joined: Oct 2006
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From: Davis & Newcastle, CA
Originally Posted by eco
Bellhousing? Try that again with the cooler lines and see what you get...the inlet and outlet at the cooler and/or the trans to be specific. That and maybe the bottom of the trans oil pan just to see what it says there.
I haven't felt the cooler lines near the transmission but last night when I got home, I grabbed the cooler line right before it entered the cooler (in the engine compartment) between my thumb and forefinger and it was cool to the touch... As in, cooler than even the engine compartment seemed to be... With a transmission at 130+ degrees, shouldn't my cooler lines be AT LEAST warm? I'm thinking they might be clogged
Whatchu guys think?
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From: The dark carnival
First find out which is pressure and which is return (I probably have that info). Then get readings at the tranny, then at the cooler after a good drive. The fluid leaving the tranny should be fairly warm needless to say and the fluid entering the tranny should be cooler, but not THAT much cooler. If there is a difference between the fluid leaving the tranny and the fluid ENTERING the COOLER, then obviously you have a blockage problem and you will just have to take readings all along the cooling system to find the blockage...a temp difference in the line will find that blockage. Does your AT go through the raidiator? If this ends up taking time, you may want to get the wheels off the ground, start the motor, put the e-brake on and put the trans in drive to keep the ATF at operating temp so that you can continue to get good readings.
Had you installed one sensor in the pressure line and another in the return line you would have found this right away, and you would find it right away if something like this were to happen again. The test port will not alert you of these problems.
Had you installed one sensor in the pressure line and another in the return line you would have found this right away, and you would find it right away if something like this were to happen again. The test port will not alert you of these problems.
Last edited by eco; Nov 5, 2007 at 12:39 PM.
Thread Starter
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Postmaster
Joined: Oct 2006
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From: Davis & Newcastle, CA
Originally Posted by eco
First find out which is pressure and which is return (I probably have that info). Then get readings at the tranny, then at the cooler after a good drive. The fluid leaving the tranny should be fairly warm needless to say and the fluid entering the tranny should be cooler, but not THAT much cooler. If there is a difference between the fluid leaving the tranny and the fluid ENTERING the COOLER, then obviously you have a blockage problem and you will just have to take readings all along the cooling system to find the blockage...a temp difference in the line will find that blockage. Does your AT go through the raidiator? If this ends up taking time, you may want to get the wheels off the ground, start the motor, put the e-brake on and put the trans in drive to keep the ATF at operating temp so that you can continue to get good readings.
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Joined: Oct 2006
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From: Davis & Newcastle, CA
Originally Posted by lostin90s
Good one chris I've been reading up on this and the oil presure swap to be a reader instead for idiot light type
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From: Hampton,Va
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Joined: Nov 2002
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From: Concord, NC
Originally Posted by Skandocious
Yep, electric sending unit. I've read that the mechanical MIGHT be more accurate by 3 or 4 degrees... But to deal with all that copper line and worrying around it getting punctures and making an ATF mess in my truck... Not worth it...
The placement looks pretty good on the gauge - easy to read at a glance. That satellite radio looks like it would be distracting, though
Last edited by EPNCSU2006; Nov 5, 2007 at 07:09 PM.
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From: Davis & Newcastle, CA
Originally Posted by EPNCSU2006
I would have gone electric too, but with temp gauges, the tube is sealed from the factory and is filled with ether, so none of the measured fluid would ever be able to get to the gauge unless there was a hole in the measuring bulb. Even then, it shouldn't leak into the cab. Pressure gauges is where you run the risk of fluid leaks at the gauge in the cab.
I just read on some other forum and the guy mentioned ATF leaking around (and possibly in the cab...)
The placement looks pretty good on the gauge - easy to read at a glance. That satellite radio looks like it would be distracting, though