:burnout: I've installed 3 temp sensors and cannot seem to get the problem fixed. The original sensor worked 80% but not always. So I installed another from ORiley's but it made my gauge read 240 or so. Then I found ZIP the nothing but corvettes people on the net and they claimed they had the correct sensor which was calibrated correctly. But when I recieved it I installed it and nothing happened I mean no sign of the gauge moving for about 20 minutes and then the gauge jumped to about 220 and kept climbing. What must I do to fix thid problem ? Maybe purchase a new gauge from the same people (ZIP) and hoping the sensor and gauge are calibrated togeather OR WHAT??? Please Help

:burnout: I've installed 3 temp sensors and cannot seem to get the problem fixed. The original sensor worked 80% but not always. So I installed another from ORiley's but it made my gauge read 240 or so. Then I found ZIP the nothing but corvettes people on the net and they claimed they had the correct sensor which was calibrated correctly. But when I recieved it I installed it and nothing happened I mean no sign of the gauge moving for about 20 minutes and then the gauge jumped to about 220 and kept climbing. What must I do to fix thid problem ? Maybe purchase a new gauge from the same people (ZIP) and hoping the sensor and gauge are calibrated togeather OR WHAT??? Please Help


Darn. It seems like buying a simple temperature sender should be no big deal. I think there is only one part number for them. And all of them calibrated the same. I wonder if there is one sender for idiot light only equipped cars and another one for gauge equipped cars. Maybe that's your problem. Just getting the wrong sender each time. As your gauge DID finally read after about 20 minutes, I'm thinking there might be something wrong with your gauge; rather than the sender.

Is it possible your engine really WAS up to 240 degrees? And you just thought it was reading wrong? When you ground the sender's wire, your gauge should go all the way up. Does it? The sender operates on the "variable ground" principle; the gauge gets full power, but the sender grounds the circut through a variable resistance. That's how they work. Try grounding the wire and see what your gauge does. If it doesn't read HOT HOT HOT when the wire is grounded, your gauge is no good.

:thumbsup3: Darn. It seems like buying a simple temperature sender should be no big deal. I think there is only one part number for them. And all of them calibrated the same. I wonder if there is one sender for idiot light only equipped cars and another one for gauge equipped cars. Maybe that's your problem. Just getting the wrong sender each time. As your gauge DID finally read after about 20 minutes, I'm thinking there might be something wrong with your gauge; rather than the sender.

Is it possible your engine really WAS up to 240 degrees? And you just thought it was reading wrong? When you ground the sender's wire, your gauge should go all the way up. Does it? The sender operates on the "variable ground" principle; the gauge gets full power, but the sender grounds the circut through a variable resistance. That's how they work. Try grounding the wire and see what your gauge does. If it doesn't read HOT HOT HOT when the wire is grounded, your gauge is no good. Took your advise>Grounded the wire and turned the key on and NOTHING But I always say "I WILL WIN" so with all this said I took the glove compartment out stuck my hand back in there behind the gauges as far as I could and moved the printed circuit plastic around a little and turned the key on and VICTORY the gauge PEGGED!!!!!!!!!!!!!! How bout that huh. So I would like to thank YOU my friend!!!!!!!!!!!!!!

:thumbsup3: Took your advise>Grounded the wire and turned the key on and NOTHING But I always say "I WILL WIN" so with all this said I took the glove compartment out stuck my hand back in there behind the gauges as far as I could and moved the printed circuit plastic around a little and turned the key on and VICTORY the gauge PEGGED!!!!!!!!!!!!!! How bout that huh. So I would like to thank YOU my friend!!!!!!!!!!!!!!


I'm glad I could help! I went to a Delco Remy school many years ago and was told 95% of all electrical problems is a bad connection somewhere. It appears that is exactly what you had. A bad connection. I really miss those days in the 50's when everything had a WIRE going to it. Rather than one of those worthless printed circut boards on a piece of flexible plastic. That's progress I guess. Replacing something that worked forever with something that barely works at all.