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Thread: 1995 s-10

  1. #1
    Jr. Apprentice
    Join Date
    Jul 2010
    Location
    Lexington, KY
    Posts
    10

    Default 1995 s-10

    All, I have an s-10 4 cyl manual 5 speed. All stock. Last week it began to act a little funny. On hard acceleration it backfires through the throttle body. Under light acceleration and idle it runs smooth as a top. I've replaced the fuel filter, air filter and checked the fuel pressure levels. All are good. Any other ideas?

    Thanks,

  2. #2
    Legend

    Join Date
    Jun 2006
    Location
    River Ridge Louisiana-4 miles W of New Orleans-didn't flood-water stopped 800 yards away.
    Posts
    1,613

    Default

    Hey, a 1995 5 speed S-10 is a decent little truck with good mpg- AND PROBABLY PAID FOR- so you are doing ok.
    Your problem is fuel delivery(which you have covered a lot of), fuel mixture(vacuum leak), or ignition(dist/rotor/plugs/wires)
    I would check for vacuum leaks( hose leaking/cracked or actually off-look at brake booster hose etc).
    Then maybe eyeball your distributor/plugs/rotor /spark plug wires.
    Look at the wires at night-sometimes if they are bad you can actually see them arc-glow blue/spark etc.
    Maybe pull the plugs and look for a grunged up plug(but eyeball rotor and wires first)

    Possible you got some bad fuel(water in it) or your throttle body injectors are slightly plugged(might try some injector cleaner in gasoline-or the fuel conditioner that sucks up water-but I kinda doubt it is bad fuel unless it happened a few miles after a fill up))
    Luck
    Charlie
    1998 suburban-
    1/2 ton

    199500 miles
    River
    Ridge,LA

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