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Posted: 06/30/08
05:19 PM
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I have a 72 Mach 351 2V. The temp guage will go to H and peg when you turn on the lights or hit the brakes.Ihave changed the temp sensor twce and i am sure it is for guages and not lights.I tested the sensor wire and get a pulse on a test light.All the other guages seem to work OK.I also checked water temp with a lazor temp meter and it idles for an hour at 186.The guage shows high even shortly after start up.Could this be the instrument voltage regulator. Thanks for the help Gus
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jlg2002
Enthusiast
| Posts: 456
| Joined: 03/08
Posted: 07/01/08
12:10 PM
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The inst reg also feeds the gas gauge, any issues there? Sounds more like a grounding or miswire issue for the gauge being backfed the voltage from the lights.
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Posted: 07/01/08
01:51 PM
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The fuel gauge seems to work ok.the temp gauge is reading very high early after start up.It would peg hot without lights while sitting in the driveway for about 5 minutes.When I tested the temp sensor wire with a test light it pulsed but not at the same rate all the time if that means anything.The car has 38,000 miles and seems un-touched behind the dash,but who knows for sure.Thanks for the help GUS
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Brent1
New User
| Posts: 42
| Joined: 02/08
Posted: 07/02/08
02:00 AM
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OK.I also checked water temp with a lazor temp meter and it idles for an hour at 186.The guage shows high even shortly after start up.Could this be the instrument voltage regulator. Thanks for the help Gus
I have a 71 model 429 which would also idle at a medium temperature, but when I was in traffic in first gear it would overheat, adding Water Wetter made a lot of difference, why not try another newer gauge just to be sure, also change the thermostat. ![]()
Brent
Qld Australia
71 grande 429ci
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jlg2002
Enthusiast
| Posts: 456
| Joined: 03/08
Posted: 07/02/08
11:10 AM
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You should have a constant voltage & amperage flowing from the gauge to the sender that's only measurable with a multimeter/ammeter. If you measure it and it is sill pulsing, I'd inspect the printed circuit and connection on the inst panl and if nothing is found, replace the temp gauge.
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Posted: 09/26/08
04:52 PM
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Hi
well this forum has the total giving look which makes it a well informer website or web blog. Thanks for making such a beautiful blog
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smith
Job Opportunities
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Posted: 09/26/08
04:54 PM
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Hi
well this forum has the total giving look which makes it a well informer website or web blog. Thanks for making such a beautiful blog
--------------
smith
Job Opportunities
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