| [GMCnet] electronic choke [message #60378] |
Fri, 16 October 2009 22:06  |
sperline
Messages: 7
Registered: February 2004
Karma: 0
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Junior Member |
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I have the electronic choke with the black box mounted on intake manifold. the unit is wired correctly as per instructions. When I turn on the ignition the spring heats and gradually moves the choke to the closed position. I am Questioning the possibility that this tyhing is working backwords?....Brian 77ele 455
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| Re: [GMCnet] electronic choke [message #60389 is a reply to message #60388] |
Fri, 16 October 2009 23:15  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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Unplug the wire on the choke going to the thermistor (the black box mounted on the intake manifold).
Does the choke still heat up when you turn on the key? If so you have a short to ground inside the heater coil assembly.
If not, then what temperature is the engine when you are testing it. If it is hot then the thermister is doing it's job. If it is cold then you have a bad thermister.
Ken
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] electronic choke [message #60398 is a reply to message #60391] |
Sat, 17 October 2009 00:32 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| sperline wrote on Fri, 16 October 2009 23:27 |
> OK I will try to sort this out tomorrow...I have printed out your response...Which wire of the two to the black box do I unplug?
> From: Ken Burton <n9cv@comcast.net>
> Date: 2009/10/16 Fri PM 11:15:08 CDT
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] electronic choke
>
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> Unplug the wire on the choke going to the thermistor (the black box mounted on the intake manifold).
>
> Does the choke still heat up when you turn on the key? If so you have a short to ground inside the heater coil assembly.
>
> If not, then what temperature is the engine when you are testing it. If it is hot then the thermister is doing it's job. If it is cold then you have a bad thermister.
>
> Ken
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
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FORGET MY RECOMMENDATION. I misread your posting. I agree with Dan. The thing is running backwards. Cold it should be closed and as it warmms up it should start to open.
Sorry for the confusion.
Ken B.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] electronic choke [message #60414 is a reply to message #60392] |
Sat, 17 October 2009 07:42 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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| sperline wrote on Fri, 16 October 2009 23:30 |
Ok..if that is the case I am planing to take out the thermal spring and re mount it reversly....I will troubleshoot more...thanks for now...Brian
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the ones i've seen the spring is crimped to the heater element and cannot be removed. it is my understanding that you have to buy these for the direction you want them to move. there are some part numbers in the GMCMI parts book for the type you have.
Fred V
'77 Royale RB 455
P'cola, Fl
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