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84LX89GT · 01-02-2003, 05:32 AM

HotRoddin is correct you will be able to feel it with your finger on the vacuum line and you'll also probably be able to hear it as well with the line disconnected, also make sure that the line your checking at has the door control knob in the correct setting (if you're not sure just tinker around with the settings until (if) you set something).

Unfortunately this is one of those things that may not have an easy answer except for arduous step by step diagnosis.

01-02-2003, 05:32 AM	#12
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	HotRoddin is correct you will be able to feel it with your finger on the vacuum line and you'll also probably be able to hear it as well with the line disconnected, also make sure that the line your checking at has the door control knob in the correct setting (if you're not sure just tinker around with the settings until (if) you set something). Unfortunately this is one of those things that may not have an easy answer except for arduous step by step diagnosis. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)