Engine Smoke test results

amkullar

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Apr 24, 2019
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I have a 89 5.0. Did a smoke test to check for vac leaks. I had smoke coming from the throttle body to intake mating surface. Which I'll fix. A had smoke coming out the #1 injector. I don't think it was from anywhere around there. Has anyone else heard of this? I had a hissing noise while the car was running previously around there. So thunk it's that. Wondering if anyone has seen this before?
 
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Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
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Massachusetts
From the injector itself, or where it "plugs" into the lower intake? There's an O-ring in there that creates a seal. Remove the injector and if the o-ring is dried out, just get a set of 8 pintle caps and O-rings and replace them all. Use a little o-ring grease and reinstall.

Do not use oil, as oil will cause O-rings to swell
 
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