350 TBI questions

[95escahoe]

I have a 95 Tahoe 350 TBI, have a couple questions, first is with the EGR there is a hose that goes from the EGR to the EGR Control Solenoid? it is on the pass side valve cover it is right across from the TPS well that hose from the EGR connects to the bottom of that but above that is a connection for a hose similar to the bottom one, should there be a hose attached to that too? and if so where does it come from, second on the front of the TBI unit there is a hose to the center on the bottom it is bellow the PCV hose that goes from the TBI unit to this black box by the thermostat housing, what does that hose do? and if I took that hose off and brought it to Napa is a stock item not something you need to order? looks like a regular rubber hose nothing special, thanks for the help

 

[xanatost]

All those lines are vacuume lines that can be picked up at any auto parts store. I'll look this weekend and see where they all go.

 

[95escahoe]

Thanks ended up replacing them, and got a rubber cap to plug off that un-used connection

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[SunlitComet]

95, need to doublecheck but I believe one of the lines on the egr solenoid needs to vent to atmosphere so when the egr system is commanded off the valve vents so nothing keeps it stuck open. Idont remember which but your emmisions hose sticker under hood or Haynes/chilton manual might. Don't have access to tech data now. Still in hospital.

 

[95escahoe]

95, need to doublecheck but I believe one of the lines on the egr solenoid needs to vent to atmosphere so when the egr system is commanded off the valve vents so nothing keeps it stuck open. Idont remember which but your emmisions hose sticker under hood or Haynes/chilton manual might. Don't have access to tech data now. Still in hospital.

Thanks for the info, Ill look into that

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