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ChevyTech · 08-09-2009, 03:49 PM

No; it means the passages are not plugged, so the valve might be bad, but there is also an EGR solenoid that could be bad, or the vacuum hose or vacuum supply.

Make sure vacuum is getting to the EGR solenoid.

Make sure the wiring is still connected to the EGR solenoid.

There are more tests I could give you if you have a hand vacuum pump.

08-09-2009, 03:49 PM	#13
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,620	Re: '89 Chevy Trouble Codes 32,34,45 No; it means the passages are not plugged, so the valve might be bad, but there is also an EGR solenoid that could be bad, or the vacuum hose or vacuum supply. Make sure vacuum is getting to the EGR solenoid. Make sure the wiring is still connected to the EGR solenoid. There are more tests I could give you if you have a hand vacuum pump.