suzukidragracer

My '02 GT 5spd (70k miles) seems to be developing a slight hesitation or miss when below 2000 rpm and moderate throttle.

I can describe it as kind of a hiccup when accelerating below 2k.

It does it a little more often when just started, but continues until the coolant temp guage reads fully warmed up.

It doesn't seem like it should be that cold blooded, I mean it's bone stock....

Help me out guys! What could it be?

plugs, fuel filter, iac, something else?

Thanks
Vince

suzukidragracer

Ok, I just checked my IAC because I was going to try cleaning it out since it's free and.......

Isn't there supposed to be a spring in it? Or is it just open and the spring compressed? I pulled it off the plenum, turned it around and shined a flashlight in there and there is no spring!

Also, I thought the IAC was only supposed to work when the throttle is closed, my problem happens when I am at moderate throttle....

HELP!

Vince

rbstang

could be spark plugs.

BBond007

Yeah, thats exactly what mine was doing when I bought it. Check the plugs like he said...

rbstang

70,000 miles... wouldnt hurt to do a tune up anyway even if the car still missed after u did a tune up.

Spark Plugs
Fuel Filter
Clean/Replace Air Filter
Clean IAC which you already did...
Rotate tires unless you have huge tires in the back.
Change oil and oil filter.
SEA FOAM !!!