180* Thermostat - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 01-05-2001, 10:28 PM
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180* Thermostat

I had to take my truck in for repairs ($650 worth of front end work) so while it was there I took them a 180* stat to have put in. The mechanic told me I should absolutely not put it in. I know how most mechanics are against any kind non-factory upgrades, but he told me all kinds reasons why not to put it in. I really did not understand a lot of what he was saying but in ran along the lines of how the computer regulates the timing, air/fuel ratio, spark ignition and all kinds of other things. I just wanted my truck to run a little cooler and a richer mixture, but it does a lot more than that. Or does it? Has anyone had any problems when going from the 195 to 180 in a 4.3 TBI? Is it worth the $7 for the stat or is it just asking for trouble?

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post #2 of (permalink) Old 01-06-2001, 01:23 AM
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Re: 180* Thermostat

I have a 180 stat. in my 91 4.3. I've had it in for about 6 months now and no problems yet. I was thinkin about changin it back to the 195 because it's winter and it needs to run a little warmer. Haven't noticed any changes in anything yet. So i say go for it.

91 4.3, 4X4, 4 Door, K&N, Flowmaster

post #3 of (permalink) Old 01-07-2001, 10:31 PM
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Re: 180* Thermostat

You won't get any negative affects from running a 180, just a bit cooler and a little less milage, possibly more power. I have run a 160 in the summer, and have had no negative side affects. I am a mechanic, and it does play into all of the things that he told you about, but the significance is very little. Hope this helps.

'91 S15 Jimmy 5.7L 4X4
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