Slow to start/loss of mileage [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Slow to start/loss of mileage


hawkeye680
07-08-2010, 03:37 PM
Hello, was wondering if somebody had any ideas on this.

Two main concerns- slight mileage drop and it seems slower to start.

The mileage drop seemed to start after I got the new tires. I went from 315 Procomp Xtreme Muds to 305 Goodyear MTRs/Kevlar. I seem to have lost an average of 2MPG. This is even after a new air filter at around 50K. It is just hard for me to believe that going to that tire make the mileage drop. My Procomps were worn down pretty low so I expected a better ride and no loss in MPG.

Also, I got the notification to change my fuel filter. I had the filter in hand and was planning on changing it after I got my boat cleaned up. After getting my boat work done, I tried to crank the truck to move the boat- it wouldn't crank. It would turn over and all but would not crank at all. I figured the filter was just dirty so I went ahead and changed it where it sat. After I remembered to prime it even after I had tightened the bleeder screw, it started normally. But since then it takes longer to start. It is a Donaldson filter. I figured it would be ok since Napa didn't have any Napa filters at the time. Any idea on why it could take longer to start now?

Thanks for your help.