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mark 9/6/2010
1988 Chevrolet R20 Suburban Silverado 8 Cyl 5.7L - Engine
Truck will not run takes a mile to get to 35mph. Replaced fuel pump/filter/sensors what is left? Could be computer?
Every time I drive it it has done this. Will not run only goes 5mph until you reach 35/40mph then will go on okay, until you come to a light/stop sign and the whole process repeats. Do I try to replace the main computer since everything has been on the fuel injected system? Need it to run, used to go to work daily.
2 Answers
  • mopar
    mopar 9/6/2010
    plugged exhaust...maybe
  • Andy
    Andy 9/8/2010
    This sounds like you may have a vacuum line unhooked. Take a piece of hose put one end in your ear and move the other end around the engine to see if you hear a suction noise any where. It's possible also that your mass air flow sensor is bad, and change the air filter if it's clogged it will smother your engine. I hope this helps

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