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  1. #1

    Default stalling under load

    I have a 93 gmc 2500 suburban with a 454. It started hesitating about 3 weeks ago under load conditions. I changed the fuel filter and nothing happened. It continually got worse. I pulled the air cleaner and inspected the injectors on the TBI. The drivers side was not spraying like the passenger side. I pulled the injector and inspected it, and it seems fine, but who knows. Put it all back together and now it leaks when I turn the key on. I wonder if the coil might have something to do with the hesitation....with the cleaner off, I really floored the engine and a fire started in the carb. It sounded more like a backfire than a hesitation when I was under the hood.

  2. #2


    Hey, welcome to the site first off.

    How many miles on this engine, had the fuel system serviced before?

    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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