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What's the normal temp for a 3400

 
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Bri2001
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PostPosted: Sat Feb 06, 2010 4:35 pm    Post subject: Question What's the normal temp for a 3400 Reply with quote

What should the normal operating temp be for my 3.4? Also, when should the fans kick on low and on high?

Since I had my intake gaskets replaced, cooling system flushed, and thermostat replaced it is running hotter than it used to.

This is where the operating temp is since I had the work done. This appears to be about 190 degrees, is this normal, or hotter than normal? It stays right around this temp and the fans never come on. Seems about normal temp, but the normal operating temp used to be only 1/4 tick past 140, not almost 1/2 way up the gauge.


I thought maybe there was still air in the system, but I have bled good a couple of times and it does not seem to change anything. I really don't think there's any air in the system. But thinking about it, where it used to run at about 1/4 up the gauge would only be about 170 degrees which seems a bit low temp I guess?

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shagnwagon
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PostPosted: Sat Feb 06, 2010 4:41 pm    Post subject:   Reply with quote

IIRC the stock thermostat is 190 so that sounds about right.
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PushrodPower
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PostPosted: Sat Feb 06, 2010 6:15 pm    Post subject:   Reply with quote

That's usually where mine stays at and I've had my gaskets replaced also. Same as before.

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lostwrench
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PostPosted: Sat Feb 06, 2010 7:11 pm    Post subject:   Reply with quote

Your picture shows where my 3.4 temp needle stays.
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joshww34
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PostPosted: Sat Feb 06, 2010 7:38 pm    Post subject:   Reply with quote

My 3.4 usually stays around 170-185 during highway cruising, during city driving its around the temp your pic shows. I have a gutted airbox, don't know if that matters.
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ad0726
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PostPosted: Sat Feb 06, 2010 10:08 pm    Post subject:   Reply with quote

That's a normal operating temperature, if the gauge were over the half mark it would be just a bit hot, but nothing too severe if the car was overheating a chime will sound continuously and the message center would display hot coolant temperature.
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Bri2001
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PostPosted: Sun Feb 07, 2010 2:46 pm    Post subject:   Reply with quote

Good to know that's the norm. I don't know why it ran even cooler before, the car is completely stock so I can't imagine it had a cooler tstat. Anyone know what temp the fans come on?

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PostPosted: Sun Feb 07, 2010 3:13 pm    Post subject:   Reply with quote

Maybe your T-stat was half open (like mine did) or wasn't opening at the right temperature, but just to make sure, check the coolant level might be just a little down, also air trapped in the system can cause a hotter temperature.
If your A/C is on one of the fans will always be on, the second will turn on after the car is over the half mark IIRC.
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