Apr 162010
 

my calais drives fine then suddenly lose acceleration no matter how much gas i give it… i let off the gas it idles fine but sputters as soon as i give it gas again….

  One Response to “problems with my 91 oldsmoblie calais”

  1. First thing you should do is check for engine codes which can be done by yourself for free. Here is how: http://www.freeautomechanic.com/diagnostictroblecodes5.html

    If there are no codes present, then you have a fuel pump going out or a clogged catalytic converter. To test the fuel pump, you will need a fuel pressure gauge or have your local shop do it for you.

    To test for a clogged converter, you will need a back pressure gauge or have your local shop do it for you.

 Leave a Reply