1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

4.7 Slow Crank, no start?

Discussion in '4th Gen 4Runners (2003-2009)' started by 4-rizzle, Aug 1, 2019.

  1. Aug 1, 2019 at 9:52 AM
    #1
    4-rizzle

    4-rizzle [OP] New Member

    Joined:
    Aug 1, 2019
    Member:
    #10759
    Messages:
    1
    Gender:
    Male
    2003 4.7 with slow crank, but no start. The battery is like new on the truck and all electronics work as usual, so I’ve ruled the battery out. Anyone know why it would crank really slow and not start?
     
  2. Aug 1, 2019 at 10:14 AM
    #2
    MattAK

    MattAK t4r.org refugee

    Joined:
    Dec 18, 2018
    Member:
    #8097
    Messages:
    145
    Gender:
    Male
    First Name:
    Guess..
    Utah
    Vehicle:
    '08 Sport V8 Galactic Gray
    Fixed broken shiz. Dobinson's 2.5"
    Welcome to the forum. just some basics: check the battery connections. make sure they're nice and tight, clean them if there's any corrosion. I've seen the tiniest amount of corrosion prevent a start even though everything else works. if the battery terminals or clamps are damaged or chewed up get them replaced. Check the cables going from the battery to the starter, see if a rodent chewed on something or anything looks compromised. last resort is to pull the starter and have it tested, it's a PITA since it's on top of the engine under the intake manifold.
     
  3. Aug 1, 2019 at 10:14 AM
    #3
    jester243

    jester243 rabble rabble rabble

    Joined:
    Jul 13, 2016
    Member:
    #2304
    Messages:
    1,433
    Gender:
    Male
    First Name:
    Dan
    Spokane, WA
    Vehicle:
    2016 4Runner Trail Premium w/ KDSS
    2 things, starters can have internal binding with age and that increases difficulty turning. the other is that batteries can seem to be like new but when fail when under a load. I would have the battery load tested, and if you can get it going have the started checked to see how much it is trying to draw. Good luck hope its a quick fix.
     
  4. Aug 1, 2019 at 11:43 AM
    #4
    Dillusion

    Dillusion New Member

    Joined:
    Dec 10, 2018
    Member:
    #7998
    Messages:
    277
    Gender:
    Male
    First Name:
    KYle
    Vehicle:
    2018 TRD OR
    Electronic working like normal doesn't mean the battery has the cranking power.

    I'd start there.
     
  5. Aug 1, 2019 at 2:47 PM
    #5
    captsolo

    captsolo New Member

    Joined:
    Jun 2, 2019
    Member:
    #10131
    Messages:
    65
    Gender:
    Male
    First Name:
    Tom
    nassau bahamas
    Vehicle:
    2005 SR5
    How old is the starter?

    I have three starters on my three 2005 F225 Yamaha outboards (14 years old), and the starters never failed on any of them.

    In fact, I started two of them an hour ago.

    On the other hand, my 2005 Toyota 4runner eats up new starters, and I replaced 4 of them including the original OEM which lasted 5 years.

    Had that starter rebuilt, and it failed a year later.

    Replaced that with AM new starter - lasted another 5 years.

    Replaced that one a few years ago with a new Quality Built (lifetime warrantee); and purchased another AM new Amazon.com starter for $87 when the "Quality" in there now fails.

    Only thing on those 4runners that fails (so far!).

    Oops! AC compressor one time failure too. Replaced AC with $200 OEM Denso from Amazon. Cools like the original Denso compressor.

    BTW: an old "long" hotwire (or ground) that goes to a starter can make a starter turn over slowly and not start like yours is doing. Might want to replace them wires (with a new AM starter from Amazon).

    A 10 year old, worn out hotwire (the fat thick red one) on the battery can keep a starter from turning over (i.e., slowly).
     
    Last edited: Aug 2, 2019

Products Discussed in

To Top