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11-02-2016, 08:46 PM
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#1 |
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Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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5.3 Thermostat Housing with Temp Ports
Im running a 5.3 out of a 04 silverado and i am trying to find a thermostat housing with temp ports fo my fan sender. If anyone knows where to get one or part # it would be much appreciated
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11-02-2016, 09:14 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,616
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Re: 5.3 Thermostat Housing with Temp Ports
Not sure about the housing your looking (I've not seen one) for but you could use the sending unit hole that would be in the passenger side head ...opposite of the one in the drivers side head...its gonna be metric though..you may have to drill and tap it out..
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11-02-2016, 09:31 PM
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#3 |
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Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: 5.3 Thermostat Housing with Temp Ports
I used that port for my dakota digital sender but it it ok to just drill and tap the factory thermostat housing?
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11-02-2016, 10:21 PM
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#4 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,616
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Re: 5.3 Thermostat Housing with Temp Ports
Your ecm will need a temp reading to...on mine the way I have it set up is..ecm reads from drivers side head sending unit..my temp gauge reads from passenger side head..the ecm controls my fans..do you have this running or are you in the install stage?
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11-02-2016, 10:26 PM
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#5 |
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Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: 5.3 Thermostat Housing with Temp Ports
I have it running. I am using a painless wiring harness and it has two wires marked fan 1 and fan two but thee fans will not come on with them ran to these wires
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11-02-2016, 10:32 PM
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#6 |
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Registered User
Join Date: Jul 2006
Location: Ozark, MO
Posts: 4,887
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Re: 5.3 Thermostat Housing with Temp Ports
Top of the water pump is easier...I have one there and in the head. I have never seen an LS t-stat housing with temp sending units or bungs/ports.
__________________
'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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11-03-2016, 01:07 AM
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#7 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,616
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Re: 5.3 Thermostat Housing with Temp Ports
You may have a problem with your ecm program..some ecms are only setup to run one fan...mine was that way and it wouldn't work either..I had to get it reprogrammed to run 2 fans and now its fine..I used a psi harness and fan 1 and fan 2 wires go to a set of psi relays..each relay goes to a fan..how did you have yours setup? those water pump housings are very thin...I ran my steam port that way..the original pump was thicker..I had to replace my leaking pump and the new one was only about half as thick as the factory one was.
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11-03-2016, 01:17 AM
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#8 |
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Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: 5.3 Thermostat Housing with Temp Ports
I have two relays for my fans and i was running the sender wire from each to the fan 1 and fan 2 or the harness
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11-03-2016, 11:24 AM
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#9 |
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Registered User
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
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Re: 5.3 Thermostat Housing with Temp Ports
How did you have them wired? The PCM sends a ground signal to the relay to turn them on, was that how you had it?
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
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11-03-2016, 09:07 PM
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#10 |
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Registered User
Join Date: Mar 2012
Location: Gallipolis, Ohio
Posts: 296
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Re: 5.3 Thermostat Housing with Temp Ports
I had the fan relays gray wire ran to fan 1 and fan 2. The guy that programmed my computer said it was set for the fans to come on at 205 and off at 190.
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