Express, Savana, G1500, G2500, G3500, 1998-2005

Gasoline Engine Tune-Up Specifications

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GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
19984.3W0.060--58-64600625HYDHYD
  5.0M0.060--60-66650550HYDHYD
  5.7R0.060--60-66660525HYDHYD
  7.4J0.060--60-66750675HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
19994.3W0.060--58-64600625HYDHYD
  5.0M0.060--60-66650550HYDHYD
  5.7R0.060--60-66660525HYDHYD
  7.4J0.060--60-66750675HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
20004.3W0.060--58-64600625HYDHYD
  5.0M0.060--60-66650550HYDHYD
  5.7R0.060--60-66660525HYDHYD
  7.4J0.060--60-66750675HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
20014.3W0.060--58-64600625HYDHYD
  5.0M0.060--60-66650550HYDHYD
  5.7R0.060--60-66660525HYDHYD
  6.0U0.060--55-62--HYDHYD
  8.1G0.060--55-62--HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
20024.3W0.060--58-64600625HYDHYD
  5.0M0.060--60-66650550HYDHYD
  5.7R0.060--60-66660525HYDHYD
  8.1G0.060--55-62--HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
20034.3X0.060--58-64600625HYDHYD
  4.8V0.060--55-62--HYDHYD
  5.3T0.060--55-62--HYDHYD
  5.3Z0.060--55-62--HYDHYD
  6.0N0.060--55-62--HYDHYD
  6.0U0.060--55-62--HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine Displacement LitersEngine ID/VINSpark Plug Gap (in.)Ignition Timing (deg.)Fuel Pump (psi)Idle Speed (rmp)Valve Clearance (in.)
        MTAT   MTATIn.Ex.
20044.3X0.060--58-64600625HYDHYD
  4.8V0.060--55-62--HYDHYD
  5.3T0.060--55-62--HYDHYD
  5.3Z0.060--55-62--HYDHYD
  6.0N0.060--55-62--HYDHYD
  6.0U0.060--55-62--HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
5- Under 8500 GVW
6- Over 8500 GVW
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
YearEngine ID/VINEngine Displacement LitersSpark Plug Gap (in.)Fuel Pump (psi)Ignition Timing (deg.)Idle Speed (rpm)Valve Clearance (in.)
          MTATMTATIn.Ex.
2005X4.30.06055-62 -----HYDHYD
  V4.80.06055-62 -----HYDHYD
  T5.30.06055-62 -----HYDHYD
  Z5.30.06055-62 -----HYDHYD
  U6.00.06055-62 -----HYDHYD
  G8.10.06055-62 -----HYDHYD
1NOTE: The Vehicle Emission Control Information label often reflects specification changes made during production.
2- Ignition timing is preset and cannot be adjusted
3- With key ON and engine OFF
4- Idle speed is maintained by the Powertrain Control Module (PCM)
 
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