It IS a good test.  BIG holes will be painfully obvious,this is fer the smaller,hard to see ones.I think he said a SMALL  amount of spray,outta do it.Got better method,post it up...  We know about hydrolocking pistons with start fluid,but when at idle,if ya don't use a TON,you'll be OK... 
__________________  2006 GMC 2500HD 4x4{cc,sb,SLE} 90/175hp tune,nocat/muff!Naked pic of wife hanging from the rear view.
Goodies waiting for installation!!  LBZpowered!! 
2002 GMC 1500 [2wd]5.3 power{98k}20 in wheels on!!! LOOK AT AVATAR<<<<
1987 Monte Carlo SS all orig!!89k.....
1978 Malibu [2 dr!!]too far in the $$$ to ever think of selling..[ZZ4 from GMPP coming in March!!  ] HOT SHOT RIG:2002 GMC Yukon XL***312,674 miles***Hytech tuned,K&N cai[not my choice]...Runs like a whore in church... The left lane was meant to pass,move over or we'll run over your assss!!!P.H.inc. Hot shot 7080let he who touch dis sig die... |