Join Date: Mar 2006
Location: Minco OK
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Seems like if I had a bad injector I would have corresponding symptoms like smoking, bucking, rough running, hard starting... I have none of that. Truck runs great.
Nope. Bad fuel mileage is sometimes the only indication the injectors are sub standard.
Granted, driving style an host of other variables make a differnece but your reported mileage is substantally below a "good" representative example.
Since you already replaced the inejctors I would question the quality of the source. If you have not been paying attention, issues exactly like this with reman injectors are very common.
At 10 mpg hand calculated and the over head reading 14 mpg, I would be all over the injectors. The OH calculates mpg based on expected fuel consumption for the speed, engine load, temp, APPS position, etc. There is only one place the fuel can be going on a stock truck.
05 QC LWB 4x4 Auto 3.73 LSD, IssproEV2's, Performance 48RE Opie TransGo , Smarty Tuned BBI Injected
Last edited by cerberusiam; 12-29-2012 at 07:09 PM.