
2001 GMC Savana 1500 5.7L Misfire, Poor Fuel Economy, MIL Lamp on
Engine missing at Idle. cylinders 7 and 3. Not loaded and
high RMP's engine runs fine. On Hwy under load occasonal
loss of power seems to run better with heater on high. Fuel
ECO Sucks
FIX posted 10/23/2010
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)15 Replies Received(Hide Replies)15 Replies Received
|
Message Closed w/FIX
|
VIN | 1GTFG15R9Y |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, Poor Fuel Economy, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2001 GMC Savana 1500
VIN | 1GTFG15R9Y |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, Poor Fuel Economy, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |