Warm-up time for the 4.6

[bilmat]

Temperatures where I live have been hovering around the low to high 50s. After starting the engine and leaving home, the temp gauge needle doesn't move at all until I have traveled a little over a mile (on surface streets, not a freeway), then it climbs to normal operating temperature over the next half-mile or so.

In contrast, the temp gauge needle in both my MDX and Vue (both of which are powered by Honda VTEC V-6s) begin their climb to normal in about a quarter of a mile and are fully warmed up within a mile. It would make sense that they warm up faster than the 4.6 Genesis since the engines are smaller and probably have less coolant.

I'm not concerned, but I thought I would use this forum to see if the warm-up time/distance for my 4.6 is similar to others who own the V-8. I'm thinking that there might be a minor glitch in the temp gauge that causes the needle to initially stick in place before it finally frees itself and starts to climb after the engine is half warmed up.

P.S. I took delivery of my 4.6 on Jan. 16th and still have yet to see another Genesis on the road. What's up with that?

Bill (Fremont, CA)

09 Platinum/Black 4.6/Tech
06 Acura MDX
05 Saturn Vue
01 GL-1800 Goldwing

 

[Mark_888]

I think it is just how the gauge is calibrated. In other words, it does not start from zero degrees on the Genesis. So until you go a certain distance, it does not move. This is actual advantageous, since when at normal operating temperatures, the gauge is more sensitive to slight variations, so it is easier to see when something changes.

 

[gserp4sox]

Also keep in mind that you are warming up a V8 and not a V6. Here in New England, the reverse process of cooling down works in our favor with the V8's. The block stays warmer longer, thus when we come back to our cars after a short time in very cold weather, we still can get heat.

Took delivery a month ago of a Black/Black V8 w/ Tech. Haven't seen another either. Due to over all poor automobile sales. I'm enjoying the exclusivity!

 

[wallymn]

lucky you, here in MN, temps range from -20 to about +5 F in the morning....

I let it warm up for 5 minutes, then after 5 miles of driving the temp is at normal operating range...

 

[MADDMOE]

sounds like WALLYMN needs a remote starter, which i would really like myself but havent been able to find anyone who can do it yet

 

[Rod B.]

sounds like WALLYMN needs a remote starter, which i would really like myself but havent been able to find anyone who can do it yet

Hyundai Canada sells an OEM remote starter for the Genesis. It does require that you sacrifice on of the key fobs as it gets embedded into the vehicle for the system to work, but you do get another Hyundai keyfob with starter control in its place.

Rod

 

[ctrcbob]

Ditto to what Mark 888 said. It is not that the engine does not warm up fast, but rather that the gauge does not move until it gets to a higher temperature. Also, if and when the engine gets really hot, the gauge most likely will stay where it normally is, until the temp gets very high, and only then, will the gauge move. I.E., a wide spread in temperature with the gauge staying in its own normal position.


Wallymn. Not good for an engine to sit at idle to warm it up. The engine needs work, and in working, it will warm up evenly. Car manufacturers always say to start engine, let it idle for just a few seconds (to get the oil moving), then drive normal. (Normal means like in city traffic, not to go out on the Interstate and do 80mph on a "cold" engine).

 

[Mark_888]

My Genesis V6 takes about 1-2 miles to fully warm up from cold start. I have never had an engine that took less than that. Keep in mind that the Genesis engines are all aluminum (or alloy) and probably dissipate more heat than cast iron blocks, and perhaps could potentially take longer to fully reach max operating temps.

 

[jake the snake]

-5 f this monring
My 3.8 always takes about 3 miles to get to normal at 60 m/h
This car has a great heating capacity and the heated seats are great

Got mine back in october but still have not seen one on the road.

Have a nice day

CIAO

 

[wallymn]

Ditto to what Mark 888 said. It is not that the engine does not warm up fast, but rather that the gauge does not move until it gets to a higher temperature. Also, if and when the engine gets really hot, the gauge most likely will stay where it normally is, until the temp gets very high, and only then, will the gauge move. I.E., a wide spread in temperature with the gauge staying in its own normal position.


Wallymn. Not good for an engine to sit at idle to warm it up. The engine needs work, and in working, it will warm up evenly. Car manufacturers always say to start engine, let it idle for just a few seconds (to get the oil moving), then drive normal. (Normal means like in city traffic, not to go out on the Interstate and do 80mph on a "cold" engine).

rock meet hardplace, my first 20 miles of commute is highway. drive at your own risk below 75.

I guess I could run laps in the circle part of the driveway.

I also notice in real cold the tranny doesn't like to shift out of park (around -20)... until it is a little warm....

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[wallymn]

on a related temp note....

Has anyone else noticed the "steaming" from the grill coming out of a car wash or when water gets in?

Clearly something just behind the grill gets very hot...

It reminds me of those old seventies movies showing a car over-heating...

dealer says it is normal if water gets behind the grill...

 

[Gimli]

Because it's a RWD the engine is mounted longitudinally (i.e. cylinders aligned front to back instead of side to side), which means the exhaust manifolds go much farther towards the front of the engine and are more easily splashed with water, causing the steaming.

 

[wallymn]

Because it's a RWD the engine is mounted longitudinally (i.e. cylinders aligned front to back instead of side to side), which means the exhaust manifolds go much farther towards the front of the engine and are more easily splashed with water, causing the steaming.

I am not a mechanic, but this is counter to what I understand.

a longitudinally mounted engine will have the exhaust manifolds on either side of the engine,

using my wife's Honda ody as an example of a transverse mount engine, the exhaust manifold is at the front of the car (ahead of the engine) behind the radiator.

if it were the exhaust manifold I would think transverse mounted engines would display this more.

also I haven't seen this in other cars with the same engine layout (528 and M45).

 

[Gimli]

I am not a mechanic, but this is counter to what I understand.

a longitudinally mounted engine will have the exhaust manifolds on either side of the engine,

using my wife's Honda ody as an example of a transverse mount engine, the exhaust manifold is at the front of the car (ahead of the engine) behind the radiator.

if it were the exhaust manifold I would think transverse mounted engines would display this more.

The transverse mount engine is usually mounted a little farther back to be aligned with the drivetrain though. It will have more manifold surface facing the front, but it's generally farther away from the rad and there's often other stuff in front of it that provide protection from the elements. On transverse mount engine that offer a lot of exposed manifold surface they would often insulate the manifold because of the grater surface if that posed a problem too.

I don't think there's anything exposed in the engine bay other than the exhaust manifold that would get so hot as to produce that much steam that quickly (I've noticed it too). Maybe it's a function of the manifold placement and front-end design that make drying blowers blow the water directly onto the manifold, which wouldn't happen during normal driving conditions.

also I haven't seen this in other cars with the same engine layout (528 and M45).

Those other cars may have protective plating over the manifold to lessen the effect or the way the front end is designed maybe water doesn't get blown onto the manifold.

Personally I don't find it particularly troubling, except the first time it happened when I thought a coolant line had burst/disconnected, especially considering that was about a week after one of my coolant line ACTUALLY got disconnected on the highway!

 

[clakowicz@comcast.net]

Was this an upper radiator hose that came off at the radiator? I read about this in anothr post. The culprit was alleged to be a misapplied clamp at the factory. Was this your situation too?

 

[Gimli]

Was this an upper radiator hose that came off at the radiator? I read about this in anothr post. The culprit was alleged to be a misapplied clamp at the factory. Was this your situation too?

Yeah, that's probably my thread you read

 

[wallymn]

Thanks for the explanation.... the steaming doesn't bother me but it is a little funny...

 

[JOwest]

on a related temp note....

Has anyone else noticed the "steaming" from the grill coming out of a car wash or when water gets in?

Clearly something just behind the grill gets very hot...

Many car makers mount the evaporative coil of the air conditioner in front of the rad. I think there is where the steam come from when sprayed with water.

 

[Nabber]

Regarding the temp gauge...

The difference could be that the sensor is mounted either before or after the thermostat.

In the "Before" location, the antifreeze recirculates without using the radiator thus showing a steady climb after the water begins to heat.

In the "After" location, the gauge will show cold until the thermostat opens then rises quickly once the heated water passes by.

Just thinking out loud.

 

[Kevudell]

Temperatures where I live have been hovering around the low to high 50s. After starting the engine and leaving home, the temp gauge needle doesn't move at all until I have traveled a little over a mile (on surface streets, not a freeway), then it climbs to normal operating temperature over the next half-mile or so.

In contrast, the temp gauge needle in both my MDX and Vue (both of which are powered by Honda VTEC V-6s) begin their climb to normal in about a quarter of a mile and are fully warmed up within a mile. It would make sense that they warm up faster than the 4.6 Genesis since the engines are smaller and probably have less coolant.

I'm not concerned, but I thought I would use this forum to see if the warm-up time/distance for my 4.6 is similar to others who own the V-8. I'm thinking that there might be a minor glitch in the temp gauge that causes the needle to initially stick in place before it finally frees itself and starts to climb after the engine is half warmed up.

P.S. I took delivery of my 4.6 on Jan. 16th and still have yet to see another Genesis on the road. What's up with that?

Bill (Fremont, CA)

09 Platinum/Black 4.6/Tech
06 Acura MDX
05 Saturn Vue
01 GL-1800 Goldwing

My 2010 4.6l temp gauge takes about 7 miles to reach operational temperature, and this is after replacing the temp. Sensor, which threw a code. Maybe because it is a large v8 engine?