Jump to content

High RPM's


Recommended Posts

Posted
It's been almost below zero nights and only a high of 20 during the day. When I get into my truck and start it when it's cold, the shift points seem to be really screwy? It don't shift out of second until almost 30mph at 2500 rpm. cruising town at 25mph, the rpm's are about 2K, and normally they are at 1K or less. Am I the only one, should I have my truck looked at? The warranty is up in 1,000 miles and don't want this problem to become a future problem after warranty.
Posted

Its normal.  Its a safe mode for the transmission.  Until the trans warms up it will shift funny.  I think in the manual it talks about this situation (check it out).  

 

Mine has done this for 3 winters now.  I agree it is annoying but i guess it reduces wear on the trans

Posted

thanks. I didn't drive my truck last winter, I had a winter beater, this was my first experience with it.

I won't worry about it.

Posted
When I had my 01 BlaZeR2 it said in the manual that the tranny wouldnt even shift into OD until it has warmed up. Didnt see anything about it in the rado book but if feels the say way in cold weather.
Posted
My '99 also did this and it was programmed into it.  My '03 does it, but very much less aggressive, and not even noticeably different from warmer mornings till it's down to like 15 above or less.
Posted
Its normal.  Its a safe mode for the transmission.  Until the trans warms up it will shift funny.  I think in the manual it talks about this situation (check it out).  

 

Mine has done this for 3 winters now.  I agree it is annoying but i guess it reduces wear on the trans

My new F250 does that and the Silverado I owned did it too.  I think the manual for the F250 says it allows the engine to rev higher between shifts so that everything will heat up faster in cold weather.

Posted
Mine will run high on a cold start, then after work- sitting in the lot all day, she'll hold in gear around 30 and be hesitant to shift until things get warmed up.  Normal as all have said.

Archived

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

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.6k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    343,007
    Total Members
    8,960
    Most Online
    Brendan C
    Newest Member
    Brendan C
    Joined
  • Who's Online   5 Members, 0 Anonymous, 1,119 Guests (See full list)

  • Latest Articles

  • Posts

    • You're better read than that Atlas. 😏   British science fiction writer Arthur C. Clarke formulated three adages that are known as Clarke's three laws, of which the third law – that "any sufficiently advanced technology is indistinguishable from magic" – is the best known and most widely cited.   Stribeck and the pivotable Hersey Number isn't voodoo nor snake oil. That part is physics. It's what marketing and bean counters do with it that is snake oil and voodoo.    Stribeck is the relationship between Hersey and the Coefficient of Friction. Within the Hersey Equation if viscosity and viscosity is 'Dependent' on.......heat.......and.......viscosity index or the temperature to viscosity slope.    Specifically Hersey is the viscosity AT THE TEMPERATURE IN THAT LOCATION FOR THAT SLOPE.   Hydrodynamic lubrication exist when the film thickness in the location is 3X the Ra roughness of the surface. This is irrespective of the hardness of the substrate. To obtain that thickness X viscosity is required for Y velocity at Z load. That's a lot of moving parts. It is also impossible to maintain in an ICE but nearly possible with a turbine under constant load.    What does that mean? Error heavy and operate light. Wear is inevitable but the rate of wear and the milage obtainable are a function of prevailing conditions and HABITS. The only penalty is viscous drag and at fractions so low as to be well worth the effort. Double the life, half the manufacturing carbon foot print. Greed is the only impediment.    The materials generated by SwRI are the RESULT not an estimation or a hypothesis.    Don't delude yourself sir, EV's have as many pitfalls as ICE's. We just don't know what they are yet and it will take longer to sort as MARKETING and GREEDY CEO's have had more time to polish the turd they are selling. 
    • You can always count on greed to prey on ignorance and stupidity.    Friend bought a 2019 Ford Flex and asked me about using Valvoline R&P 5W30 in it. Told him give the miles on it and the fact it wasn't yet using oil that it was a good plan. He uses a Valvoline quick change shop for his oil service.   First they tell him that isn't the oil the OEM recommends. He told them he didn't care what the OEM thought. Then they floated the, "But it will void your warranty"    His reply was it's a 2019, there is no warranty and informed them their knowledge of the law was lacking.    Then they tell him 'But it will ruin your motor"!.    Mine to ruin he says. Finally they give in and charge him 150% the semi-syn price    Point it the brainwash is so embedded that even the service industry is drunk on their swill. The public is right behind them. Echoing the same lies on every forum and media platform. If the end goal is indeed EV then I'd say that ship is about built. 
    • Diesel hit $6.00 here today at the truck stop.   Payed $2.79 for E85 today too.
    • Thanks for posting, I'm sure it will help someone
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...