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International Automotive Technicians Network
1978 Cadillac Seville 5.7L Poor Idle Quality
Posted to GM Driveability on 3/1/2003 15 Replies

Sorry for the bogus VIN.

Hoping there are some long-time Caddy techs out there that can shed some light on this for us.

This old Caddy has a very early, open-loop type port injection system on it. This thing runs terrible, worse at idle, but even at speed it...

15 Replies Received (View Replies)

  Related Documents & Media  1978 Cadillac Seville

 
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car Vehicle Data

1978 Cadillac Seville

VIN 1G21457891
Engine5.7 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / Open Loop Port Fuel System
EmissionsFed
SymptomsPoor Idle Quality
OccursAlways
Misc.Early Port Fuel Injection
Message Closed

car Vehicle Data

1978 Cadillac Seville

VIN 1G21457891
Engine5.7 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / Open Loop Port Fuel System
EmissionsFed
SymptomsPoor Idle Quality
OccursAlways
Misc.Early Port Fuel Injection