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1976 Chevrolet K20 Custom Deluxe 6.6L pings
Posted to GM Driveability on 8/4/2011 41 Replies

Got this problem from another shop, This engine pings uncontrollably, even with timing retarded to 20 degrees total! Customer runs 91 octane fuel, checked emissions under load and it runs within the proper perameters, not too rich and not too lean! rebuilt car...

41 Replies Received (View Replies)

  Related Documents & Media  1976 Chevrolet K20 Custom Deluxe

 
Message Closed w/FIX

car Vehicle Data

1976 Chevrolet K20 Custom Deluxe

VIN CKU246Z131
Engine6.6 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryCarburetion / 4 bbl quadrajet
Emissionsfed, no cats, no EGR
SymptomsPings
OccursHot, Under Load, on Accel
Misc.Pinging Uncontrollably
Message Closed w/FIX

car Vehicle Data

1976 Chevrolet K20 Custom Deluxe

VIN CKU246Z131
Engine6.6 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryCarburetion / 4 bbl quadrajet
Emissionsfed, no cats, no EGR
SymptomsPings
OccursHot, Under Load, on Accel
Misc.Pinging Uncontrollably