troubleshooting non functional gauge?
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
troubleshooting non functional gauge?
Trying to get my oil temp...not oil pressure...gauge to work. I installed a new delco oil temp sending unit and tested the resistance. When cold, resistance is high. When I drop the sending unit in hot water, the resistance is low. I don't think the sending unit is faulty. If I ground the sending unit wire, the gauge pegs to the right. If I reverse the ground and power wires, the gauge pegs all the way to the right. When hooked up normally, the gauge is staying to the left. Not sure what conclusion to make based upon my shadetree mechanic diagnostics. Anyone have any suggestions?
Melting Slicks
Joined: Mar 1999
Posts: 2,845
Likes: 2
From: Apex NC
Re: troubleshooting non functional gauge? (Frankenvette)
Sounds like the oil temp sensor is not making a good contact to ground, leaving you with an open circuit. Are you using some kind of sealer on the threads? That can interfere with the continuity between the sensor and the block, causing an open circuit.
I'm not familiar with oil temp sending units, so excuse me if I'm off base. Hope all is well up there Jim, long time since we chatted last.
Shannon
I'm not familiar with oil temp sending units, so excuse me if I'm off base. Hope all is well up there Jim, long time since we chatted last.
Shannon
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
Re: troubleshooting non functional gauge? (sb69coupe)
Shannon,
Like wise, hope all is well in good ol' NC. We miss it, but we really like the area we live in. Not to far from NYC. Hope to make Rockefeller Center during the holidays. Some great country driving in the mountains in the vette.
I did use teflon tape when I originally installed the sensor, but when I removed it today I did not see much of the teflon tape. I'll clean the threads and reinstall and try again. Thanks for the suggestion.
Like wise, hope all is well in good ol' NC. We miss it, but we really like the area we live in. Not to far from NYC. Hope to make Rockefeller Center during the holidays. Some great country driving in the mountains in the vette.
I did use teflon tape when I originally installed the sensor, but when I removed it today I did not see much of the teflon tape. I'll clean the threads and reinstall and try again. Thanks for the suggestion.
