Smoke test

xxjaymanzxx

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Anybody ever do a smoke test on these cars I think I have a vac leak somewhere and can’t find it... where do I feed the smoke?
 

hotcobra03

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most common area.
maybe hard to see.

line under blower, if it hasn' been removed,

this complete line has issues..elbows will get hole from rubbing..

some elbows crumble.

liNE off pcv valve may also squeeze under vacuum..will cause low vaccum,

line on bottom of blower..known to harden,

this was my issue..hard line, it would spin on nipple but not pull off..
I put a clamp on it..
I was getting
po171/174.

I didn't
smoke test..

the main vaccum harness I pulled off car..checked all that in hand..

evap, hose is also something I changed to fuel line..

this hose turned you black just touching it..

for smoke test..there is a link showing the vaccum lines..google.

03 cobra vacuum lines documented
 

xxjaymanzxx

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The car starts idling weird and the vacuum gets low then it goes back and forth from normal to low... noticeable when first fired up
 

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