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temp guage in 70 amx |
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badamx 
AMC Apprentice 
Joined: Apr/04/2011 Location: Middlebury, IN Status: Offline Points: 58 |
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 Topic: temp guage in 70 amxPosted: Sep/16/2014 at 7:35am |
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I have had my 70 apart for a few months for paint etc. Am beginning the reassembly and trying to address some issues before I put the dash back in. My fuel guage is working and my temp is not. Does the instrument voltage regulator control both? If so I assume that is not the issue. Thanks for your help!
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sidewinder
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Joined: Oct/07/2007 Location: Niagara Falls, Status: Offline Points: 6665 |
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Posted: Sep/16/2014 at 8:50am |
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Yes...the voltage reg on the back of the cluster controls both. You can test the temp gauge by grounding the wire in the engine compartment that goes to the sending unit and if the gauge goes full scale it's ok as is the harness. At that point I'd replace the sender on the top of the manifold. DO NOT use any tape on the threads.... Hope this helps..
Chuck Page |
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Chuck Page ,AKA Sidewinder
1968 "BLACK CHERRY" Javelin Previous owner of 2013 Heritage Cup winner 1970 BBO AMX |
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badamx
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Joined: Apr/04/2011 Location: Middlebury, IN Status: Offline Points: 58 |
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Posted: Sep/16/2014 at 9:37am |
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Thanks Chuck.
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401MATCOUPE
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Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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Posted: Sep/16/2014 at 11:35am |
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Chuck.....on 1970 all cars were equipped with Low Fuel Warning, that unit cut the Fuel Gauge out of the CVR Circuit....it has a plastic isolator. So in 1970 if everything is dead original the CVR only controls the temp gauge.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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sidewinder
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Joined: Oct/07/2007 Location: Niagara Falls, Status: Offline Points: 6665 |
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Posted: Sep/16/2014 at 1:03pm |
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Interesting....I have my early 70 AMX and it does not have low fuel warning?
Chuck Page |
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Chuck Page ,AKA Sidewinder
1968 "BLACK CHERRY" Javelin Previous owner of 2013 Heritage Cup winner 1970 BBO AMX |
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fast401
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Joined: Sep/16/2008 Location: swanton, ohio Status: Offline Points: 3467 |
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Posted: Sep/16/2014 at 1:06pm |
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My 70 had the low fuel warning and the build was April 1970.
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Disturbing the peace since 1970!!! AMX 19245
Facebook page - AMC Nation www.fast-401.4t.com |
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401MATCOUPE
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Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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Posted: Sep/16/2014 at 1:15pm |
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Chuck,
A lot of them were removed since they were not very reliable........notice Chrysler emblem on the PCB
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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sidewinder
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Joined: Oct/07/2007 Location: Niagara Falls, Status: Offline Points: 6665 |
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Posted: Sep/16/2014 at 2:30pm |
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I learn something new here every day!! Thanks Ross!!
Chuck |
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Chuck Page ,AKA Sidewinder
1968 "BLACK CHERRY" Javelin Previous owner of 2013 Heritage Cup winner 1970 BBO AMX |
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ramblinrev
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Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11543 |
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Posted: Sep/17/2014 at 8:55am |
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Ross; I think you mean "on all '70s that had the Low Fuel Warning". That was an optional item. Not a standard equipment item. Thanks for the heads-up on the CVR with that unit, I would not have known that! Paul |
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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401MATCOUPE
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Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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Posted: Sep/17/2014 at 10:26am |
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Paul, I have some sales paperwork that shows the Low Fuel Warning as STD Equipment for 1970.....I'll see if I can find....either way the tech still applies... Ross
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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401MATCOUPE wrote: