1996 5.0 mystery problem HELP!!!

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1996 5.0 mystery problem HELP!!!

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Silverado >> 1996 5.0 mystery problem HELP!!!

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1996 5.0 mystery problem HELP!!! - 9/12/2006 11:50:09 AM

Mr.mallard

Posts: 2
Joined: 9/12/2006
Status: offline

I am at my wits end.1996 1500 4x4 5.0 with 183k. Problem started with a hesitation at about 2000 rpm's on freeway accelarating after a de-cell.Thought bad gas,did gas dry,injector cleaner.No good.went to fuel filter,had to cut splice lines,no good.tried fuel pressure regulator, no good.Finally bit bullet,took to local hack and said fuel pressure good at 65psi,NO CODES and allegedly cleaned and checked map sensor.Suggested injectors and possibly timing chain.His scanner was reading lean under load and timing up into the 30 degree marks.Said injectors for sure first 1300$ did them myself,all went easy and quick(half price too) I put new injectors in yesterday,still not fixed.Ive noticed a few things 1. tach twitches and drops like crazy when it happens 2.hesitaton from stop seems like getting worse3. and although alternator is new and was just checked to be good,my volt gauge which has read 14 for 9 yrs is down 2 lines,thinking 12.5-13+/-??
in the morn on start up its right at 14+. Could this be distributer related? sensor? voltage? Im completely lost and throwing parts at it now.Could use some help.....please I beg of you!

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