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Discussion in 'Chevy Truck Forum' started by david 87, Apr 5, 2008.

  1. david 87

    david 87 Full Member

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    what is code 32 on a 87 chevy truck 5.7 , how do i fix this
     
  2. Chevy_Finatic79

    Chevy_Finatic79 Senior Member

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    code 32 is a EGR Loop Error. the books says this happens when is "sees" improper vacuum. so I would say you have a stuck EGR vavle or a vacuum leak or both but start there
     
  3. crabtruck

    crabtruck Senior Member

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    Was this one with the solenoid for the EGR ? Egr may be only dirty and need to be cleaned. If you do have to replace it be careful of the differing types that look similar. I would think about using the dealership to avoid the wrong size orifice problems that seem to crop up from national chain stores.
     
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  4. junior3382

    junior3382 Senior Member

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    If it is infact a vacuum problem, I would also look at the little hose that runs into it. Being small, it can also be very brittle. Happens with age. If there is a small crack in the line, then a small leak could lead to it reading an inpropper vacuum.
     
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  5. david 87

    david 87 Full Member

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    i found a small screw in the hose (dont know how that got there) bot it still has a code 32 after about 20 milles on the highway
     
  6. 87c10slammer

    87c10slammer Senior Member

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    did you reset the computer. just pull the negitive cable off for a min.
     
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  7. david 87

    david 87 Full Member

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    yes did not help , it is also surging while i am coasting with the gas at about 15% down , like not enough gas getting to the TBI
     
  8. Chevy_Finatic79

    Chevy_Finatic79 Senior Member

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    so did you look at your EGR valve yet? it only has 2 bolts and very easy to take off and if your careful you can re-use the gasket. Try cleaning the EGR valve like Cabtruck said.
    have you changed your fuel filter lately? cheap part huge performace monkey wrench when it starts to go
     
  9. jimbo543

    jimbo543 Senior Member

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    the surge is probably a b/o egr valve, a weak spring in the valve causes it to open too much at low speeds/low throttle. was screw in that hose?
     
  10. david 87

    david 87 Full Member

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    yes it was a small allen head screw
     

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