Why do our trucks take so long to warm up? - Page 3 - Nissan Frontier Forum
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#21 (permalink) Old 12-19-2008, 12:15 AM
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you should not deviate from an oem spec fluid. was it an independent shop that advised a heavier weight tranny fluid?
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#22 (permalink) Old 12-19-2008, 01:27 AM
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nope, was the stealership back when it was under warrenty back in the day. ill have to ask pops what/why the reasoning was to do it, but all i remember is he told me winter might be rough at startup shifting bc of the thicker fluid

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#23 (permalink) Old 12-19-2008, 07:40 AM
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Originally Posted by jerryp58 View Post
If you've got a thermostat in your vehicle, any vehicle, and it's operating correctly, then you shouldn't be using the radiator until the coolant in the engine reaches operating temperature.
Absolutley. The coolant circulates within the engine block until the thermostat starts opening to allow it to flow into and out of the radiator. It normally flows from the thermostat housing to the upper radiator hose. It them travels down the radiator tubes where it is cooled. The bottom hose returns it to the engine block. Some vehicles use cross flow radiators but the same cooling principles apply. The coolant just flows sideways instead of downward.

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#24 (permalink) Old 12-19-2008, 08:18 AM
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if i remember correctly the 2nd gen run off a cold start map not so sure of first gens. but i believe it has to do with block size and material that determines your warm up time like my moms pathfinder heats way faster than my truck she's got the 3.3l my dad's silverado has the 7.4l 454 takes like 30 min if it's below freezing takes like an hr

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#25 (permalink) Old 12-19-2008, 12:04 PM
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Check your thermostat. The fist gen has no special electronic gadgets that I know of for cooling the engine.

The thermostat stays closed (or should) till it's gets hot enough to open. If the termostat is malfunctioning then replace it.

But all in all I am very happy with the truck warming up. Like I said before I get luke warm air blowing out in about 1 mile down the road. Warm air by 2 miles.

I also have an e-fan. But that should not matter because the thermostat controls when the liquid gets sent to the radiator for cooling. However the e-fan makes the truck quieter.

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#26 (permalink) Old 12-19-2008, 03:35 PM
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i think my thermostat is ok, i used to blame my CAI but i just think its the engine taking forever to get to operating temp. in cold weather it take a while to warm up and it cools down quickly, maybe its the iron block who knows?

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#27 (permalink) Old 12-21-2008, 10:03 AM
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You cannot compare a small 4-cylinder warm-up time to a V6. Especially when the V6 in consideration is a Nissan VG which weighs almost as much as a small block Chevy V8. That is a lot of material to heat up. Combine that with the fact that the displacement is so small (hence smaller explosions to heat the cylinders) and it will just take longer to completely warm up.

That being said, as mentioned above a malfunctioning (stuck open) thermostat will cause the warm up times to increase substantially. I had a bad T-stat in an old Dodge I had that it would take 15 minutes to warm up. After the T-stat replacement it took all of 3 minutes...


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#28 (permalink) Old 12-21-2008, 10:20 AM
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Quote:
Originally Posted by OnlyOneDR View Post
You cannot compare a small 4-cylinder warm-up time to a V6. Especially when the V6 in consideration is a Nissan VG which weighs almost as much as a small block Chevy V8. That is a lot of material to heat up. Combine that with the fact that the displacement is so small (hence smaller explosions to heat the cylinders) and it will just take longer to completely warm up.

That being said, as mentioned above a malfunctioning (stuck open) thermostat will cause the warm up times to increase substantially. I had a bad T-stat in an old Dodge I had that it would take 15 minutes to warm up. After the T-stat replacement it took all of 3 minutes...
In my experience, the warm up time is about the same. I've owned two Hardbody trucks with the 2.4 L and I got heat at the same time I do in the V6 engines in my Maxima and Frontier.



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#29 (permalink) Old 12-23-2008, 02:36 AM
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well in the town im in its about 40 degrees. and i get in start up and go and it take about 5-10 mins to warm up

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#30 (permalink) Old 12-23-2008, 09:41 AM
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I have not had this problem I timed it yesterday in 20F temps and it took 4 1/2 minutes to warm up. I have a stick and keep the rpm a little over 2200 rpm
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