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1990 Pontiac Grand Prix SE 3.1L Speedo Reads About 25% Faster
Posted to GM Electrical on 2/3/2001

Hello gm techs

this car i a friend of a freinds and thay stated that after used engine was install that the speedo was reading to fast i drove for 2 minutes at 60 mph and odometer reads 1.5 miles to me thats a difference of 25%. speedo looks like its all elec...

  Related Documents & Media  1990 Pontiac Grand Prix SE

 
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car Vehicle Data

1990 Pontiac Grand Prix SE

VIN 1G2WP14T2L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedSpeedo Reads About 25% Faster
Message Closed

car Vehicle Data

1990 Pontiac Grand Prix SE

VIN 1G2WP14T2L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedSpeedo Reads About 25% Faster