Jump to content

Engine Surge When Slowing

solarjustin

Recommended Posts

solarjustin Enthusiast

solarjustin

Posted
Posted

I have an 04 1500 2WD with the 4.8L and I have noticed as I am slowing down from about 25mph to about 10mph the engine will surge a few times (2-3 times) as I slow. The surge is of only about 200rpm, but it is enough I can hear it as well as see it on the tack and it does it 3 times like I am downshifting through the gears. Is this normal for these trucks? I can't remember for the life of me if the truck has always done this or if I am just now noticing because I have been driving the wife’s car a lot lately. It was doing this both before and after I had the filter and fluid flush done last week so I don’t think that service affected anything.

 

Is this normal or any ideas what the solution is?

 

Thanks

95Sierra2500 Senior Enthusiast

95Sierra2500

Posted
Posted

Sounds pretty normal. I would guess it's a combination of the truck downshifting to keep you in the proper gear, as well as the TC unlocking and locking. All of my vehicles do this.

solarjustin Enthusiast

solarjustin

Posted
  • Author
Posted

Good, Thanks. I have been driving my wife's V-6 RAV4 so much that when I went back to driving the truck the other week it was just weird that it did that while slowing down. I didn't think I remember it doing that much before, so it is good to here other people say they notice it happening more/less sometimes.

Archived

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

Go to topic listing

  • 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, 1,020 Guests (See full list)

  • Latest Articles

  • Posts

    • Grumpy Bear
      The Peckish Synapse

      By Grumpy Bear · Posted

      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. 
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      Diesel hit $6.00 here today at the truck stop.   Payed $2.79 for E85 today too.
    • richard wysong
      Electrical Problem - solved

      By richard wysong · Posted

      Thanks for posting, I'm sure it will help someone
    • Brendan C
      2026 6.6 L5P oil cooler leaking oil at 4,000 miles

      By Brendan C · Posted

      New to diesel trucks. I happened to find my oil cooler leaking oil externally with only 4,000 miles on the truck. I didn’t realize this was an issue until I started researching it. Dealer is going to replace it under warranty but I’m wondering if there’s anything GM is working on to fix this issue. I’ve heard the oil filter used is the same as they use on their V6 motors and that’s what is causing the problems. Should I switch to a bigger filter or keep using the OEM recommended? 
    • Vu1can
      Seems to be Missing a lot of Updates

      By Vu1can · Posted

      So, GMCustomerService:  Judging by the Update History pictured above, is this truck missing any updates that it actually needs. If it's just for the infotainment system, the radio is working fine and no trouble with SeriusXM. and Android Auto is working fine wirelessly with my phone. Some months ago, an update notice was sent to my truck. I approved the update and it finished saying that the update was successful, but it seems that whatever that update was, it didn't actually get installed - at least not if I'm to go by the Update History shown above.   So, again, are there any updates that this truck really should have? I've checked with my dealer but they're reluctant or commit to anything and if I want them to check, they require a $200.00 fee just to check it out and then I'd have to pay for the actual update(s).    Ignorance is bliss, and if none of the updates goes to fixing any mechanical discrepancies, I'll just leave things as is.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...