rough running

1998 PONTIAC SUNFIRE
160 MILES • 4 CYL • AUTOMATIC
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TOADHOLLER
  • MEMBER
  • 2 POSTS
when the temp falls below 50, my 98 sunfire with a 2200 engine runs very rough. This is not affected by engine temp. A code reader showed a cam and crank sensor fault. l replaced both with no result. Once it gets up some speed it smooths out, but if l have to stop, getting it moving is a real chore.
Dec 8, 2010 at 8:41 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Has the temp sensor been checked?
Dec 8, 2010 at 8:41 AM
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TOADHOLLER
  • MEMBER
  • 2 POSTS
where exactly is it located?
Dec 8, 2010 at 11:29 AM
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