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1991 Chevrolet Blazer Silverado 5.7L Poor Idle Quality, Poor Fuel Economy, Timing Unadjustable
Posted to GM Driveability on 1/13/2007 25 Replies

Hey guy's

I've got a good one..

Ater completing a major tune, the vechicle still had some what of a rough idle. Checked ignition timing with test lead disconnected and found timing to be @ 14 to 16 degree's advanced!Adjusted timing back to recommended 0. Vec...

25 Replies Received (View Replies)

  Related Documents & Media  1991 Chevrolet Blazer Silverado

 
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car Vehicle Data

1991 Chevrolet Blazer Silverado

VIN 1GNEV18K3M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsOBD1
SymptomsPoor Idle Quality, Poor Fuel Economy, Timing Unadjustable
OccursAlways, Cold, on Accel, Idle
Misc.Fullsize Blazer
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Blazer Silverado

VIN 1GNEV18K3M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsOBD1
SymptomsPoor Idle Quality, Poor Fuel Economy, Timing Unadjustable
OccursAlways, Cold, on Accel, Idle
Misc.Fullsize Blazer