1998 Oldsmobile Achieva Car makes me and the shop stumped

80,000 MILES • 6 CYL • FWD • AUTOMATIC
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TIFNIK3
  • MEMBER
  • 1 POST
Ok well what happens is, once the car warms up the car will start to buck, the rpms either jump or go down and then it will stall out. You can start the car back up no problem, but the second you put the car in gear and release the brake it stalls out. The car is fine again until it cools back down. The shop its in has had it for weeks and are completely stumped. They have checked the fuel pump, crankshaft sensor, ignition module, and the circuit board. The check engine light is not on and i need my car back asap!
Mar 11, 2009 at 9:51 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Have they found any vacuum leaks? EGR?
Aug 20, 2009 at 9:03 AM
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