Hi I have a 1996 olds ciera since new 3.1 v-6 engine

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    ric jarrelleposted 4 months ago

    Hi I have a 1996 olds ciera since new 3.1 v-6 engine

    The car runs perfect when it is first started and once it runs a few minutes or gets to normal temp it has a bad hesitation I have changed egr valve, cat converter, maf sensor, tps sensor, map sensor, spark plugs and wires, temp sensor, fuel filter and fuel pump & sending unit still has problem ? it runs perfect until it warms up ? could the exhaust (muffler and pipe be clogged ?) please any help is much appreciated

 
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