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1991 4Runner

Discussion in '2nd Gen 4Runners (1990-1995)' started by Beachbamafan, Jul 6, 2022.

  1. Jul 6, 2022 at 9:51 AM
    #1
    Beachbamafan

    Beachbamafan [OP] New Member

    Joined:
    Jul 6, 2022
    Member:
    #27702
    Messages:
    1
    Gender:
    Male
    First Name:
    Tim
    Vehicle:
    1991 Toyota 4RUNNER
    First time posting new here. I have a 1991 4runner it started sometime ago where it would run then die but would crank again and run. Finally one day it just stopped starting. I took it to a "mechanic ". He managed to fix some things where it was able to start for a second and immediately die. To my knowledge everything has been gone over and seems to be working properly. He informed me the motor is losing compression and it needs a new motor. Any suggestions would be appreciated. Thank you and I look forward to any direction anyone can send me.
     
  2. Jul 7, 2022 at 8:52 PM
    #2
    atgparker

    atgparker Cal Poly, ETME 1988

    Joined:
    Jun 20, 2018
    Member:
    #6296
    Messages:
    328
    Gender:
    Male
    First Name:
    Andrew
    Mission Viejo, CA
    Vehicle:
    1991 White 4Runner 3.0 L
    Rebuilt Engine MLS and ARP on the heads, DT Header, 2-1/2" CARB compliant Flow-Master CAT with 2.0" Bosal CAT back Dayco 1-1/4" Spacers, SkyJacker M-Series Monotube Shocks, Ball Joint Spacers. 95-9006 K&N Air Cleaner, G-Plus Alum Radiator, ZIrgo 16" Fan, Derale Temp switch/relay
    Tim,
    Your best friend will be a Toyota Factory Service Manual (FSM). They are by far the best in the automotive industry. The trouble shooting sections can lead you right to the problem if you have some mechanical aptitude. These are OBD-1 engines for the emissions systems and are also the earliest of the fuel injected motors that Toyota developed. You will find most ASE mechanics are useless unless they are 2nd Gen 4Runner enthusiast's. You may be able to get at some electronic copies of the FSM's on YotaTech see link here below FYI.

    https://www.yotatech.com/forums/f116/90-95-toyota-4runner-fsm-299648/
     
  3. Jul 8, 2022 at 3:51 PM
    #3
    negusm

    negusm New Member

    Joined:
    Oct 22, 2019
    Member:
    #11745
    Messages:
    1,876
    Gender:
    Male
    Vehicle:
    2002 4Runner SR5 4WD
    Take it in to a REAL mechanic and get a leak down test. Dry and Wet. The numbers will tell a lot.

    Honestly 99% of the time, when something runs for a second...it's fuel related.
     

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