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  1. #1

    Default 96 suburban engine died while driving on freeway

    Tried to start after pulling over, no success. I had it towed home and check for spark, ok. I checked to see if fuel pump was working, ok. I check little air valve looking thing on fuel line in engine compartment and got fuel to squirt on ignition. I checked air filter, ok. I took off cover to top of carb, and primed w/gas, engine started for a little while. Is there a simple fix to this problem.

    SameDay09

  2. #2

    Default

    My guess would be a clogged fuel filter. When's the last time you changed it?
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
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    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  3. #3

    Default

    Quote Originally Posted by Jimmiee View Post
    My guess would be a clogged fuel filter. When's the last time you changed it?
    He said when he checked the schrader valve on the fuel rail that fuel squirted out which means there is pressure and the truck should start. Sounds like the injectors are not firing.
    1997 Chevy Silverado 1500 210K miles:
    350 Vortec/4L60E, 3.42 posi, Underdrive crank pulley, K&N filter, Superchips power programmer, mallory coil, true dual exhaust, torque swirl TB spacer, and more!


    1991 Pontiac Trans Am GTA- L98 Superram
    1992 Subaru SVX LS-L- Way too many mods to list!

  4. #4

    Default

    Quote Originally Posted by budfreak View Post
    He said when he checked the schrader valve on the fuel rail that fuel squirted out which means there is pressure and the truck should start. Sounds like the injectors are not firing.
    There may not be enough pressure for the injector to spray. Who knows, it may very well be a crank sensor causing no pulse to the injectors. Checking for codes would shed some light on it.

  5. #5

    Default

    Quote Originally Posted by Jimmiee View Post
    There may not be enough pressure for the injector to spray. Who knows, it may very well be a crank sensor causing no pulse to the injectors. Checking for codes would shed some light on it.
    Agreed, a check for codes should always be the first thing done.

  6. #6

    Default

    Check actual fuel pressure. Low pressure will produce a squirt at the schrader valve on the the fuel line but might not be enough to start or sustain running of the engine. As posted earlier replace your fuel filter if you haven't done so for a while. Dirty fuel filter can greatly reduce the fuel pump life as can operating the vehicle when your fuel level is below 1/4 tank.

  7. #7

    Default

    If the engine will stumble along if you feed it fuel or ether, than it's definitely a delivery problem. Start at the beginning and work your way up. Confirm fuel pressure first, and go from there.

    BTW, Spark in the engine bay does not guarantee spark in the combustion chamber. I don't think this is your problem, but food for thought. What are your plugs gapped at? Hood sticker probably says .065. Try cranking them down to .040.
    When you hear hoofbeats, look for horses not zebras.

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