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1991 Oldsmobile Cutlass Supreme 3.1L Poor Idle Quality, Hesitation, Surge, Misfire
Posted to GM Driveability on 11/11/2002 24 Replies

This vehicle will not idle under 1900 RPM's. If put in drive, it will idle doen to 1100 RPM's. Return transmission to Park. Idle will rise to 1300 - 1400 RPM's.

replaced the IAC, checked all coil outputs (3-4 oscillations ea.)Fuel pressure, & delievry good. ...

24 Replies Received (View Replies)

  Related Documents & Media  1991 Oldsmobile Cutlass Supreme

 
Message Closed w/FIX

car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WH54T2M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / PFI
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Surge, Misfire
OccursAlways

Trouble Codes

35IAC Problem
Message Closed w/FIX

car Vehicle Data

1991 Oldsmobile Cutlass Supreme

VIN 1G3WH54T2M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / PFI
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Surge, Misfire
OccursAlways

Trouble Codes

35IAC Problem