GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 4 of 4
  1. #1
    Join Date
    Jul 2011
    Northwood Center, New Hampshire, United States

    Default Hesitation comes and goes.....

    Was coming home form tractor supply this evening when my wife's 2002 1500HD Crewcab started to hesitate and lost power....I pulled over and it almost stalled but then caught itself......I was going about 50MPH when it happened and no matter how much I played with the throttle it still dropped to about 35 MPH. NO check engine light....I am thinking maybe a bad cat? After I pulled over and let it idle for a few moments the problem went away.....

    No mods, regular oil/fliter changes...had the transfer case rebuilt 2 years ago.....any advise or insight is greatly appreciated, thankyou in advance

  2. #2


    Welcome to the club. Is the truck gas or diesel? If its a bad cat it should throw a code.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

  3. #3
    Join Date
    Jul 2011
    Northwood Center, New Hampshire, United States


    Thanks for the welcome, it's a gas engine 6 liter, thats what makes it strange, nothing is coming up in the message center.... thanks again STB.

  4. #4
    stephan's Avatar
    Join Date
    Sep 2010
    Far West, Oregon USA,
    Blog Entries


    I doubt it's a bad cat cuz when they plug, they usually stay plugged. I would check your fuel pressure. Could be a fuel filter that's real close to being totally clogged, or intermittant low fuel pump pressure. You can borrow a FP guage from AutoZone & various other parts suppliers.
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol

Similar Threads

  1. Hesitation Problem
    By willbradfan in forum General Chevy & GM Tech Questions
    Replies: 21
    Last: 08-30-2010, 10:44 AM
  2. Hesitation/Stumble
    By redright9 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last: 03-05-2010, 10:50 PM
  3. Hesitation at throttle tip-in
    By PabstMaster in forum Chevy C/K Truck Forum
    Replies: 5
    Last: 02-01-2010, 05:27 PM
  4. Hesitation since new.
    By hd2500407 in forum Performance & Fuel
    Replies: 3
    Last: 03-29-2009, 07:15 PM
  5. 05 Clolorado hesitation
    By RG in forum Chevy Colorado Forum (GMC Canyon)
    Replies: 8
    Last: 02-01-2007, 09:00 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts