3800 Need help

[graphicassult]

Okay, so i'm really getting tired of posting problems with my car...

But heres what i've noticed and I need help to find out what the hell is wrong with it

Okay, to start my idle is crappy, it'll fluctuate roughly 1 to 200 rpms at a stop light or stop sign

I've come to notice this is more present when the vehicle is warm

And yesterday for the first time on my way to work (car fully warmed) i nailed it from a stop light and at WOT it began to stutter, it was going but you can feel a lagging

What the hell is wrong with my car?????

I also beleive i'm getting crappy gas mileage...

ALL HELP IS APPRECIATED!!!

Thanks

Click to read more...

 

[1quick]

I havent payed much attention to the other posts so I am not shure what you changed but I would say give it a tune up plugs whires take off the coil packs and cote the bottom of them with dielectric grese change fuel filter if that don't do it scan and see what your long term fuel trims are at if you have a vaccume leek then they will be around +15 or 16 other than that I'm not shure what else to check


brett

 

[redgt03]

i agree..i would start with a tune up.

 

[Sinister Drag Designs]

plugs, fuel system, maf...id check in that order

 

[graphicassult]

I've tuned this up recently. 4k ago new plugs. 2K ago PCV and coil pack and module. Regular oil changes, everything. I just need a new fuel filter i know. I'm thinking i need to clean the TB or something like that, i dont know though. It seems to do it when its warm, thats a little odd. Theres also a slight noise from the pcv area, i dont know if its normal or not.

 

[Sinister Drag Designs]

well if you have a blower and smaller pulleys, plugs go quick..ask ron vogal
4k ..it might be due for a change, wires will prob be good if you changed those last time, they have maf cleaner at napa, and yeah a fuel filter can get bad after a while

 

[graphicassult]

no blower/pulleys

its basically a stock 99 GT

Looks like my day off friday i'mma be dismantling a TB

 

[my97gtp]

Originally posted by graphicassult@Feb 22 2006, 10:47 PM
no blower/pulleys

its basically a stock 99 GT

Looks like my day off friday i'mma be dismantling a TB

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Check all the vacuum lines first. If any got brittle and broke that could cause a vacuum leak an cause the problem. If u are kickin any codes u can come over to my house and we can check em out. Ive got a scanmaster to so we might be able to check some parameters with that. Talk to ron vogel and keep watchin this thread. Someone might have had the same problem and can give a hand.