Gauges stick
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Rotary Freak
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Joined: Oct 2007
Posts: 2,014
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From: Colorado Springs, CO
Gauges stick
I have an '83 and the oil pres., fuel, and temp gauges stick. The oil pres and fuel gauges start working when the inside of the car is warm. The temp gauge has stoped working, I did try grounding it no luck. The last time I drove about 250 mile trip, it started working about half way.
It there anything I can do to get them to work all the time. how do I clean and lube them.
If I can't get it working is there any good shops that can go the work, I'm in Colorado
It there anything I can do to get them to work all the time. how do I clean and lube them.
If I can't get it working is there any good shops that can go the work, I'm in Colorado
7-less
Joined: Dec 2005
Posts: 2,053
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From: No. Virginia, USA
Y'know what, I've read about this exact same problem a long time ago. It has to deal with some sort of wax on the back of the needles, I think. They tend to get rigid when it's cold and when it warms up, the wax softens up and allows the needles to move. Do a search, you'll find the answer.
And, welcome to the Darkside. Check out the FSM for your car.
http://www.wankel.net/~krwright/cars/rx7/manuals.html
And, welcome to the Darkside. Check out the FSM for your car.
http://www.wankel.net/~krwright/cars/rx7/manuals.html
Apathy Isn't Laziness
Joined: Oct 2007
Posts: 344
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From: Edmonton
The other thing that I researched that another member had mentioned in an old thread.
Our instrument clusters are basically circuit boards and contain many cold solder joints. It is possible that when the ambient temp drops below a certain temp that the solder joints are separating. Then when the temp rises they rejoin therefore completing the circuit.
This was a common problem on a lot of German cars and their A/C/Heater control boards.
To verify this you would need to pull the cluster and leave in the garage or other cold area. Then examine the solder joints on the back with a magnifying glass.
Any found broken/separated joints could be repaired by resoldering.
Our instrument clusters are basically circuit boards and contain many cold solder joints. It is possible that when the ambient temp drops below a certain temp that the solder joints are separating. Then when the temp rises they rejoin therefore completing the circuit.
This was a common problem on a lot of German cars and their A/C/Heater control boards.
To verify this you would need to pull the cluster and leave in the garage or other cold area. Then examine the solder joints on the back with a magnifying glass.
Any found broken/separated joints could be repaired by resoldering.
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