used car Posted November 4, 2014 Share Posted November 4, 2014 i have 1987 subaru gl 1.8 l 4x4 It does not want to shift into 3rd gear lately.1st to 2nd good shift.What could cause that and how to fix it. Thanks Link to comment Share on other sites More sharing options...
wagondragon Posted November 4, 2014 Share Posted November 4, 2014 Bad syncro probably, is it a manual or automatic? Autos tend to have that issue ive heard. Never had issues with mine, but switched to a 5 speed anyways. Better mpg... If it is the syncro you will have to split the case and dig into the gears. Link to comment Share on other sites More sharing options...
used car Posted November 6, 2014 Author Share Posted November 6, 2014 It turned out to be the vacuum line on modulator valve.The rubber hose on the end had wore out and collapsed.Replaced it and it runs perfect now. 1 Link to comment Share on other sites More sharing options...
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