hello i just went and traded my 99 ford mustang for a 98 chevy 1500 with a 8in lift and 35tires 5.7L vortec. now my issue i was driving her home noticed the gas gauge was moving a little bit back and forth then when at idle it jumps all over the place and when it is off it sits at 3/4 tank and the oil pressure it will sit at about 40 when doing 55-60 then when i let off it will jump all the way past the last mark n back to 30-40 area but i dont feel any werid stuff from the truck. it might have a bad oil pan gasket. i am new to theise trucks and dont know very much about them so all help is apreishated thank you very much
doug

 

it sounds to me like a bad sending unit.

 

what do u think about the oil issue the guy told me it is a timeing chain cover gasket

 

in my 01 silverado 5.3 it does the same thing with the oil pressure and I've been told it's a bad sendin unit...as for the gas gauge new fuel pump will do the trick

 

well i just went out to go get some stuff from the store it wouldent crank over the starter would just wine or what ever u wana call it and the motor wouldent rock so i climbed under it and looked the bolts seemed fine n the wireing was good to so i calleds the guy and he said the started was to small when he got it and i have to just walk it back in to its spot well i cant do that n the starter gear isnt reaching the fly wheel all thw way just gets it enough to scrap it so i guess it walked it self off some how. any ideas on that im not to familer with starters as well since im 17 but i know the basic but are you sapost to beable to see the starter gear when no cranking?