codes

[david 87]

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

[Chevy_Finatic79]

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

[crabtruck]

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.

[junior3382]

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.

[david 87]

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

[87c10slammer]

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

[david 87]

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

[Chevy_Finatic79]

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

[jimbo543]

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?

[david 87]

yes it was a small allen head screw