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1994 Chevrolet C3500 6.5L MIL Lamp on
Posted to GM Driveability on 9/5/2007 6 Replies

HEY GUYS. HAVING PROBLEM W/THIS DIESEL. IT KEEPS TROWING CODE 78 FOR THE WASTEGATE. I RAN THOUGH THE TSB AND PERFORMED ALL THE TESTS. I HAVE 16Hg @ WASTEGATE ACTUWAITER @IDLE. NO VAC. LEAKS. VACCUME GOES TO 0 W/WASTEGATE SOLENOID [...] THE LINKAGE IS FREE AND ...

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  Related Documents & Media  1994 Chevrolet C3500

 
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car Vehicle Data

1994 Chevrolet C3500

VIN 1GBJC34F8R
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsMIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

78wastegate solenoid
Message Closed w/FIX

car Vehicle Data

1994 Chevrolet C3500

VIN 1GBJC34F8R
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsMIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

78wastegate solenoid