Have replaced so many things lately on my 88 f150, 351. Pretty sure the alternator is shot, but could it have caused a bunch of chugging issues?

 

That's a real good possibility. Mine would surge and hesistate would coming to a stop or slowing down to make a turn. Volt gauge in dash would sweep wildly back and forth. Truck would start with no other problems except for the CEL coming on at different times when it would buck and chug.

Best thing to do is get it to an auto parts store where they can test it for free to rule it dead or dying.

 

Yes, if the battery was almost dead too.

 

my alternator went bad on my 95 bronco when the battery got low it chugged really bad and missed guessin no battery power was causing low fuel pressure give it a shot

 

Like everyone else said. If your VOLTAGE is low enough yes it can. Just a bad alt wont but a bad alt would cause low voltage.

 

EFI hates fluctuating voltage and can mess up a lot of sensor readings.

 

Thanks for the info guy's. I'm taking the alternator out and having it checked at autozone. Pretty sure I'll be getting a new one.