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1988 Starting Issues

Discussion in '1st Gen 4Runners (1984-1989)' started by McSaucyWalrus, Mar 10, 2019.

  1. Mar 10, 2019 at 6:51 PM
    #1
    McSaucyWalrus

    McSaucyWalrus [OP] New Member

    Joined:
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    Trevor
    Hi Everyone,
    Im new to the forum and new to the 4runner (and 22re) game. My 1988 4Runner is having problems starting, it will crank over but I dont think its getting fuel, I was able to crank it over for a few minutes and it would sputter a few times and eventually fire up about two weeks ago, now when I crank it over nothing happens, just keeps cranking until the battery dies. I sprayed some starting fluid into the intake and it would fire using that but would not continue running after the starting fluid is burnt up which leads me to think that it is not getting fuel.

    I think I'll start by jumping the battery port and the fuel pump port in the diagnostic port and loosen the banjo at the cold start injector to see if I have fuel pressure...?

    Any other suggestions on where to start?
     
  2. Mar 10, 2019 at 7:32 PM
    #2
    HoBoDanny

    HoBoDanny Dude...

    Joined:
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    Daniel
    Kentucky
    Vehicle:
    2004 SR5 V6 4WD 4Runner
    RCI Skid Plate CBI Ditch Light Brackets Hankook DynaPro ATM RF10 265 70R17 113T Tires 1.25” Wheel Spacers TPMS Bypass Mod Hydrocarbon Filter Removed Merca decal 2” leveling kit front only Black headlights
    Sounds like you’ve got a solid plan. Check the inline filter.
     
  3. Mar 10, 2019 at 8:06 PM
    #3
    4scooter19

    4scooter19 New Member

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    Oregon
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    98 and 86 4Runners
    If you don't get pressure I would check voltage at the pump. I have had relays go bad in the past. Theres an access panel under your back seat if you didn't already know that. Makes it nice to not have to drop the tank!
     
  4. Jun 10, 2019 at 7:03 PM
    #4
    Martinjrherrera

    Martinjrherrera New Member

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    Martin
    Vehicle:
    1986 4runner SR5
    Check one of the relays that’s your issue I can’t remember which one but we had same problem
     
  5. Dec 20, 2019 at 1:29 AM
    #5
    PhantomTweak

    PhantomTweak New Member

    Joined:
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    Patrick
    OREGON
    Vehicle:
    1987 4Runner all stock, owned 32 years
    None. Bone Stock. EXCEPT: Brushguard, tow hitch, both welded to the frame. It's good to have friends and a fully equipped garage!
    It's called the Circuit Opening Relay, and it's mounted above the computer over behind the passenger kick plate. Little hard to find. Best way is to unbolt the computer, and just move it out of the way. Don't bother taking the plugs off it. The COR is right above it, and easy to access.

    Yeah, I had the same problem, too. I jumped the test connector, and the fuel pump ran fine, so it was the COR. Replaced it, and now it works like it should.
    I, personally, would replace the relay if it's bad. It's a real good safety feature, stopping the fuel pump if the engine dies, like in an accident. Keeps fuel from continuing to be pumped, dumping it all over the place, creating a real bad fire hazard.

    Does this help?
    Pat☺
     
  6. Dec 23, 2019 at 6:42 PM
    #6
    NightOwl

    NightOwl 1985 Toyota 4 Runner DLX 22REC

    Joined:
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    First Name:
    Amos
    Ballwin, MO
    Vehicle:
    1985 Toyota 4 Runner DLX
    LCE header, 2.5 inch exhaust, 31x 10.50 BF Goodrich, 15 X 8 aluminum wheels, Bilstein Shocks, 3 inch lift kit, 3M fender flares
    My 1985 Toyota 4 Runner would start when cold but then when hot would only crank and eventually start up but it would almost drain the battery too. I got frustrated and thought the fuel pump that is under the back seat, and under a plate on the passenger side is where the fuel pump is...I replaced it with a Denso fuel pump along with the fabric filter (included) and I have never had a problem starting again...not quite the same problem but it's an easy fix to replace the fuel pump and really pretty cheap...like $65.00 and about an hour of time...I hope this helps
     

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