SchneiderFishing Posted May 4, 2009 Share Posted May 4, 2009 Need some ideas. I've got a 1990 4.0 column shift long bed. When I come to a stop (sign or light) then go to give it some gas I get a hesitation (kind of a stutter). In the last few months the spark plugs have been replaced, the distributor has been replaced, the fuel injectors have been replaced, the gas tank has been replaced, the fuel filter has been replaced. Need some ideas? TPS??? Thanks Link to comment Share on other sites More sharing options...
BPB Posted May 4, 2009 Share Posted May 4, 2009 try bypassing the ballast resister, I know that they can do some screwy things when they go out, and they're cheap. Other then that I would start going through your sensors one by one. Link to comment Share on other sites More sharing options...
BLHTAZ Posted May 4, 2009 Share Posted May 4, 2009 The TPS is a posibility. The proper test procedure for it is in hte DIY forum here... viewtopic.php?f=9&t=12260 Link to comment Share on other sites More sharing options...
SchneiderFishing Posted May 16, 2009 Author Share Posted May 16, 2009 replacing the O2 sensor in front of the cat. converter seemed to help alot Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted May 16, 2009 Share Posted May 16, 2009 I'm going to assume this is a new problem, AND that you have gone thru and given a complete tune-up. How about a fuel filter and good TB cleaning? Also, if its new, have you recently changed anything? If you did, try replacing what you did and see if this goes away CW Link to comment Share on other sites More sharing options...
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