[DML] VIN#04421 Lives Again and Rough Idle - Vacuum Leak
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[DML] VIN#04421 Lives Again and Rough Idle - Vacuum Leak


I am happy to report VIN 04421 lives again after a successful fuel
accumulator changeout.  During the changeout, one of the fuel hoses
literally crumbled apart in my hand.  That would have been a safety
hazard.  The fuel hose was replaced.  

I also swapped in a new oxygen sensor because 04421 had a rough idle
problem at start up.  But the rough idle sympton is still there with
the new sensor.  The old oxygen sensor I swapped out had less than
3000 miles on it.

So after studying section D of the workshop manual, it looks vacuum
leak is the culprit.  I also have white smoke coming out of exhaust. 
So the 2000 dollar question is: how do I check
for vacuum leak?  There is a "propane" method to check for leaks, but
would prefer a safer method.  Should I put pressure gauge on my
shopping list?



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