mopwrd340 Posted May 1, 2010 Share Posted May 1, 2010 i just purchased a 93 cherokee yesterday and after running it today it stumbles when you put your foot on the gas to take off . didnt do it yesterday when i got it if you gradually tip into the throttle stopped or rolling it won't do it . I'm thinking tps am i headed in the right direction. it is a 4.0 aw4 thanks :wavey: Link to comment Share on other sites More sharing options...
JeepcoMJ Posted May 1, 2010 Share Posted May 1, 2010 how's the pressure at the schraeder valve on the fuel rail? Link to comment Share on other sites More sharing options...
mopwrd340 Posted May 1, 2010 Author Share Posted May 1, 2010 havent checked yet it will run great when floored . just seems to stumble below 2000 rpm what should the pressure be at when running. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted May 1, 2010 Share Posted May 1, 2010 look for a vacuum leak. Link to comment Share on other sites More sharing options...
mopwrd340 Posted May 1, 2010 Author Share Posted May 1, 2010 thats possible i traded my van for yesterday to a used car dealer and when i got there they were working on it .they ha put a new vc gasket on (cork) by the way . it looked like it had been leaking pretty bad theh cobbled up some hoses for the pvc system . if i look more I'm sure i will find a broken vacum line thanks. :idea: Link to comment Share on other sites More sharing options...
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