hick-up, almost stalls

[dan_taurus]

hey guy's, i got a prob. only after brake to gas peddle transfer the car hick-ups and comes very close to stalling. last year, used optimax gold(shell)it blew the fuell pump. tryed 3 tanks worth very recently then this happens. ahhhhh. stay away from shell. they did pay for the fuell pump and a line flush, just wondering if it could be the gas or the fact that i got 300000 k's on my 96 gl(vulcan,ax4n)with no major work at all. this hick-up is not good for racing. any ideas?oh ya, would a chip increase spark. if so is it bad for boch platnum 4 plugs?

[Dan_in_WA]

Always get the codes read first. Take it to a shop if you have to, but if you're going to keep the car any length of time, buy yourself a code reader. That will point you in the right direction.

Do you have a vaccum guage? If so, plug it in to a line coming directly off the intake manifold. You should see about 17" or 18" of vaccum. Give the engine a rev - the vaccum should drop just a little bit, and then come right back to either where it was before, or very close.

A vaccum guage can be had for under $25 and can save a lot of guesswork.

Keep us posted.

[mikeo550]

my bet is either your electrical system is going... your rotars are seizing up and not letting the engine turn over... or your brake lines are messed up in a way (binded, old, blocked) get it checked man... by a good mechanic not your dealer bcuz they usually just replace the spark plugs which will only make your problem go away for a while untill the plugs start wearing down

[dan_taurus]

i have a new coil pac, wires and plugs. rotars were changed in the spring, four new calipers last yearand brake lines.it wasn't a vacume line either.about my only two choices left are a MAF senser or my throttle bodt positioning senser?new gas tank, fuell pump, fuell lines and injectors.might possibly be a clogged fuell filter but i changed that every spring. i'm running out of options