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I've confirmed that the 160 thermostats that we have in stock will work on the 2004-'05 GM trucks powered by the 4.8, 5.3 and 6.0 motors. These low-temp thermostats dramatically reduce your engine’s operating temperatures, improving performance and extending component longevity. They’re easy to install that will also fit all 2004+ GTO and Corvette applications.

The part number and price is - 100228 - $19.99. No 180 thermostats are available at this time.
 

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Las Vegas Mob
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I will be installing a reduced temp 'stat on my SSR and I have had great results from doing this on vehicles with engine driven fans. What info do you have on the operating parameters of the electric fan on the SSR such as on/off temps, resetting parameters, etc.

Thanks!! Blast
 

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Discussion Starter #3
I don't have the on/off parameters that GM has programmed but the aftermarket programming that we carry can reset the fans to come on early.
 

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Low temp stats

BlastfromPast said:
I will be installing a reduced temp 'stat on my SSR and I have had great results from doing this on vehicles with engine driven fans. What info do you have on the operating parameters of the electric fan on the SSR such as on/off temps, resetting parameters, etc.

Thanks!! Blast
I do not think the low temp stats will have much effect on the SSR since the fan is programed to turn on/off as follows:
Low speed ON at 226 F and OFF at 219 F.
High speed On at 235 F and OFF at 226 F.
With the A/C OFF.
Somewhat lower temps if the A/C is ON. :flag
 

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Nomadkenn said:
I do not think the low temp stats will have much effect on the SSR since the two fans are programed to turn on/off as follows:
Low speed ON at 226 F and OFF at 219 F.
High speed On at 235 F and OFF at 226 F.
With the A/C OFF.
Somewhat lower temps if the A/C is ON. :flag
I agree! I would like to go with a 180 stat and fan start about 190 to 200. Also, Nomadkenn, is there a 2nd fan in front of the condenser or does the single fan behind the radiator have Low and High speeds?

Thanks! Blast

P.S. to tbyrne and Nomadkenn: Thanks a ton for all your info and expertise in this thread and others! It is something that really makes this site so valuble.
 

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Vote of confidence

Thanks Blast for the vote of confidence! No there is not a second fan but the PCM provides two separate circuits through relays that control the amount of voltage that gets to the two circuits. One circuit (hight speed) gets full B+ protected with a 60A fuse. The slower speed circuit has an in-line resistor internal to the cooling fan to obtain low speed operation. This circuit is protected with a 10A fuse.
I agree, the help that we can give each other is what makes this site what it is! :flag
 
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