bergle Posted April 23, 2010 Share Posted April 23, 2010 Howdy all ! I have a 1993 Legacy that is really sluggish lately. It is very slow to climb hills and accelerate on the oped road. I tried changing the wires and plugs as well as fuel filter, transmission filter and oil. There is no Check Engine light on either. Any thoughts on what could be causing this. Quote Link to comment Share on other sites More sharing options...
bheinen74 Posted April 23, 2010 Share Posted April 23, 2010 Did you use Subaru brand plug wires and NGK plugs? Quote Link to comment Share on other sites More sharing options...
bergle Posted April 23, 2010 Author Share Posted April 23, 2010 I used NGK both. Would the catalytic converter make it slow? Like I said no CEL on Quote Link to comment Share on other sites More sharing options...
OB99W Posted April 23, 2010 Share Posted April 23, 2010 Would the catalytic converter make it slow? An exhaust system restriction is one of the things that can cause the symptom you've described. It's possible to use a vacuum gauge to check for that. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted April 23, 2010 Share Posted April 23, 2010 Yep - vacuum gauge time. GD Quote Link to comment Share on other sites More sharing options...
nipper Posted April 24, 2010 Share Posted April 24, 2010 Does it use any oil? nipper Quote Link to comment Share on other sites More sharing options...
bergle Posted April 24, 2010 Author Share Posted April 24, 2010 It does use some oil, but not alot. Are you thinking it might be the rings? Quote Link to comment Share on other sites More sharing options...
nipper Posted April 24, 2010 Share Posted April 24, 2010 It does use some oil, but not alot. Are you thinking it might be the rings? Yes. A vacume gauge will help rule out many other things, and if it is dramatically low, will point to bad compression. nipper Quote Link to comment Share on other sites More sharing options...
bergle Posted April 24, 2010 Author Share Posted April 24, 2010 Do you put the guage in the spark plug sockets? And what should it read if the compression/exhaust is good? thanks- Quote Link to comment Share on other sites More sharing options...
nipper Posted April 24, 2010 Share Posted April 24, 2010 http://www.classictruckshop.com/clubs/earlyburbs/projects/vac/uum.htm no you connect it to a vacume line. Quote Link to comment Share on other sites More sharing options...
OB99W Posted April 24, 2010 Share Posted April 24, 2010 A couple of other links: http://autorepair.about.com/library/weekly/aa112401b.htm http://www.secondchancegarage.com/public/186.cfm Click on Scenarios -- #14 is for exhaust restriction test. Quote Link to comment Share on other sites More sharing options...
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