C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help with a C-4 engine PLEASE

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Old Aug 21, 2014 | 04:10 PM
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Default Help with a C-4 engine PLEASE

I just replaced the injectors in my 1989 5.7 liter. In putting things back together when I got to the hoses on the passenger front side of the engine I came up short. There are three hose ports. The top one is for the PCV valve and the bottom for coolant, but for the life of me, I cannot figure out what hose goes on the center port. There isn't anything near it and I don't remember taking anything off. I'm inserting a picture of the top two - the bottom one has the coolant hose still attached. Your assistance is greatly appreciated - thank you. blair@blairgilbert.com

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Old Aug 21, 2014 | 04:25 PM
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vapour recovery, IIRC.
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Old Aug 21, 2014 | 04:43 PM
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There should be a loose line at the canister that would go there. Emissions vacuum hose routing decal/label should likely still be on the car. I doubt you should have trouble finding it. Put your hands on the canister and you should find the hose.
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Old Aug 21, 2014 | 05:48 PM
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I've never felt more like an idiot. I cannot find a lose hose anywhere. I looked for 30 minutes the other day, went on Google images to look and still come up blank.
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Old Aug 21, 2014 | 05:58 PM
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with WVZR-1...I just went into my garage and looked on my 89...There is a plastic hose with a rubber connector that goes on that fitting...The hose goes under the air intake tube,across the engine bay to the drivers side wheelwell , then down into the drivers side front hole with about 3 other plastic lines...Then the hose goes rubber again and connects onto the plastic canister...If you don't have the lines there, you should get them because you need them....WW

Last edited by WW7; Aug 21, 2014 at 06:16 PM.
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Old Aug 22, 2014 | 05:08 PM
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Thanks a million! I'd inadvertently buried it when putting things back together but having a starting point and route solved the challenge almost immediately.
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