Jump to content

Heat Buildup

zedbear

Recommended Posts

zedbear Enthusiast

zedbear

Posted
Posted

I've noticed that when I get stuck in traffic or sit somewhere in drive at idle for awhile in hot temps with the a/c on (80's or more), the engine temp will climb up steadily to around 215F until stabilizing (as read from scangauge II). It doesn't take long, maybe 5-7 mins. As it approaches 212F the fan clutch begins to kick in fully. But at idle it doesn't seem to matter. Normally the truck runs around 190F. The waterpump and tstat is newer. Behaved this way last summer before I replaced those parts. Is this normal? Once I start moving the temp drops right back down. I know 215 is still well within operating temps but a 25 degree jump from idling for a short time seems excessive to me.

 

Interestingly, the a/c automatically switches to recirculate when coolant temp get near 212F. Less heat load I presume.

zedbear Enthusiast

zedbear

Posted
  • Author
Posted

Another interesting thing I noted is the scangauge indicated 215F at one point yet the insturment panel gauge still sat in the same spot it always does once the truck is warmed up, which is just below 210. Another indication the factory temp gauges are BS as far as being a "real" gauge.

Badbird2000 Enthusiast

Badbird2000

Posted
Posted

I have a tuner on my F150 that i can also monitor water temp.. mine does the same thing. It can go from 192 driving on the highway, highest so far i have seen was 210 sitting in a drive-thru in Geogia last month..idiot gage never moved. I guess it's so people don't freak out when they see it move around.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      Big oil is raking in billions from the Iran war. Can it avoid Trump’s fury?   Remember I said Big Oil is 'Vertically Integrated"?   Even as they no longer own the majority of the "Pump" they still own the "Well". Crude price upward pressure does not translate into that same pressure on production. Pumping cost remain unaffected and the gap is pure profit. Even after subtraction of a minor, comparatively, lower amount from supposed, but not always, realized refining volume. Consumers hate war, Big Oil, not so much.
    • KARNUT
      2027 GMC Sierra: Official Discussion

      By KARNUT · Posted

      We live in a world where the average person expects more. People say wages and our needs are farther apart. My first new home had 3 bedrooms and one bedroom. My first car and truck had what would be considered a stripped or work vehicle. In my neighborhood back then there were more homes like that and cars too. Middle managers and second home buyers worked their way up to the fancy houses and cars. Car loans were 3 years. GM had different models of cars for different income levels. The cars were pretty much the same size if you wanted a big vehicle. The nameplate designated the opulence. Chevy, Pontiac, Buick, Oldsmobile and Cadillac.  To be fair some of the cost is government mandated. We can’t blame them for giving us what people will pay for. Careful advertising steering people towards more profitable SUVs and trucks. As I learned recently a minivan is a cheaper more efficient form of transportation. Certainly easier to live with. Somebody realized the profit margin wasn’t as big and gave it a soccer mom label. So it lost its coolness. They’re making it the masses are buying it. You hit your hand with a hammer you can’t blame the hammer.
    • Aussie2500HD
      Electrical /Immobilizer Data- Battery Voltage (V) Test malfunction

      By Aussie2500HD · Posted

      Hi All, I’m In need of advice regarding a scan result on my 2023 Silverado HD.  The Sensor Supply voltage relay states ON But…. the following 3 tests show Malfunction. Sensor supply voltage relay control circuit HIGH voltage Test status- Malfunction Sensor supply voltage relay control circuit LOW voltage Test status- Malfunction Sensor supply voltage relay control circuit OPEN test status - Malfunction. No DTC codes are stored. No DIC Lights. Remote Key Fob has been giving a few issues, namely Vehicle will not respond to an Open/Lock command from the key fob. New batteries installed to FOB made no difference, plus on one occasion recently the vehicle unlocked using the Fob, the vehicle started normally via the push button, then a random warning came up on the DIC stating the Remote Key was not found, all this while the key was located next to the central cup holders. Does anyone have any input or advice regarding this scenario? TIA 
    • Aussie2500HD
      Immobilizer Data-Battery Voltage

      By Aussie2500HD · Posted

    • tararebecca
      2027 GMC Sierra: Official Discussion

      By tararebecca · Posted

      I agree, simplicity and reliability matter more as vehicles get more complicated. A V8 work truck option with fewer electronic features and a stronger warranty would definitely appeal to a lot of buyers who use their trucks for real work. Customizing it with trusted outfitters is often the best way to get exactly what you need

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...