
2003 Chevrolet Suburban 1500 LS 5.3L Misfire
Installed a reman engine and at idle has a misfire on cylinders 1-4-5-8, installed new plugs, injectors, crank sensor, cleaned maf, all new gaskets, misfires at idle to about 1200 rpm then goes away, swapped coils and wires no change, fuel trims read -9 on... ![]()
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)21 Replies Received(Hide Replies)21 Replies Received
|
Open Help Request
|
VIN | 3GNFK16Z83 |
Engine | 5.3 L / 8 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | Misfire |
Conditions | 1-4-5-8 Misfire |
Open Help Request
Vehicle Data
2003 Chevrolet Suburban 1500 LS
VIN | 3GNFK16Z83 |
Engine | 5.3 L / 8 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | Misfire |
Conditions | 1-4-5-8 Misfire |