× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1994 Buick LeSabre Custom 3.8L spark Knock
Posted to GM Driveability on 2/12/2004 10 Replies

I could use some help on a spark knock problem. The customer brought in for poor fuel economy. I replaced the Thermostat. The engine ran too cold also replace the o2 while I was at it. On road test I noticed to much spark Knock for normal operation when under ...

10 Replies Received (View Replies)

  Related Documents & Media  1994 Buick LeSabre Custom

 
Message Closed w/FIX

car Vehicle Data

1994 Buick LeSabre Custom

VIN 1G4HR5215R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsSpark Knock
OccursUnder Load
Message Closed w/FIX

car Vehicle Data

1994 Buick LeSabre Custom

VIN 1G4HR5215R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
SymptomsSpark Knock
OccursUnder Load