Car studdering, mechanic stupid, help!

[Chris Hacker]

So when my car is in any drive, even reverse, it studders, you can even feel it in the seat. It's not a bad noise or anything it just studders, du, du, du, du and when it drive (it's automatic) it doesn't shift well in gears. It's at a shop now and the idiots can't figure out what's wrong. He was like I think it's the spark plug wires, but I just got brand new plugs and wires 5 months ago, they can't be bad right? Any clues on this????

[whiteshark]

could be a coil pack, also check to make sure all plug wires are on tight.

[gregmondro]

<blockquote>quote:</font><hr>Originally posted by Chris Hacker:
So when my car is in any drive, even reverse, it studders, you can even feel it in the seat. It's not a bad noise or anything it just studders, du, du, du, du and when it drive (it's automatic) it doesn't shift well in gears. It's at a shop now and the idiots can't figure out what's wrong. He was like I think it's the spark plug wires, but I just got brand new plugs and wires 5 months ago, they can't be bad right? Any clues on this????<hr></blockquote>

heres things to replace

plugs, wires, coil packs.

it has to be one of those 3 things. i'm not sure how the coil packs are on fbodies, but on my DSM theres 2 separate ones that control the cylinders in this order

[41] [23]

then from there they're connected to a transistor pack.

you can test the coils. get a chiltons manual, they're you're best friend [img]smile.gif[/img]

[cassie]

mine does the same thing. I followed everyone's advice.

The plugs, wires, and coil paks were changed. It ended up being none of the previous. I suggest you take it to a different mechanic that knows what they are doing. Randomly fixing things is expensive, trust me!

[bobrules]

Chevy dealership, they cost more but they'll do it right and stand behind the work.

[Up2NoGooD619]

yes my car does that as well more of a pulling though i got it scan for codes cause check engine light came on on thursday n they said it was due to spark plugs n wires n coil packs i replace all but coil packs now it is pulling even harder? pulls (studering)? but the ****** up thing is that half my city is on fire right now n i can't do a damn thing but the coil packs? could this be the reason? n should i just order the performance one's off like ammperformance?

[gregmondro]

silly question
but are your plugs gapped correctly?

[gregmondro]

oh btw
for the coil packs if you're gonna buy em
get them from autozone. they have a lifetime warranty.

[Up2NoGooD619]

i would hope i paid i shop..lol....n so there isn't a real big diff from buying "performance" ones n just some from autozone?...

[gregmondro]

<blockquote>quote:</font><hr>Originally posted by Up2NoGooD619:
i would hope i paid i shop..lol....n so there isn't a real big diff from buying "performance" ones n just some from autozone?...<hr></blockquote>
not really imo
i'm sure theres some one on here who will say that "performance" coil packs will make your car run 2seconds faster than stock though [img]tongue.gif[/img]

[SmokeyinSWF]

Im having what sounds like the same prob as this (sputtering) The codes it was giving said misfire in 4th cylinder, and then something about EGR valve position sensor. I looked everywhere online for this sensor and nobody seemed to have one for my Firebird. So yesterday i go to the Pontiac Dealership. The parts guy there says my car doesnt have an EGR position sensor. So why in hell did the code say i needed one? pfttttttttttt on my way walking out, i asked a mechanic about what i learned.He said the EGR on my car is computer controlled. He told me to replace my plugs/wires and check the coil packs...

[SmokeyinSWF]

[img]graemlins/fluffy.gif[/img] I just got out from being under my Firebird for an hour changing 1 single spark plug wire ! :( Well in my 96 Firebird the plugs arent exactly easy to access. I had to go from underneath and everytime i got the wire on i tried getting behind the wire head and push it on( NO room!)it would slowly slide off. I got a little irrate then paused for a smoke break(the good kind!)and then went back underneath it with a whole new attitude :D first try slid on and then got the metal cover back on.. With all those symptoms i was having with the sputtering and codes saying misfire on 4th cylinder, bad EGR valve, i replaced 1 plug wire and she runs excellent !!!!! Looking over the bad plug wire i could see really nothing wrong. Until i spotted a flat spot due to a melt(really small) i squeezed it and out came the internal wire :D Needless to say my Firebird is running better than ever !!( i have only had it 3 weeks and apparently had the problem the whole time)For all those with sputtering probs, check your wires !!!! Mine appeared new and kinda weird that the bad wire caused 5 codes to show up on my check engine light.Well now im off to cruise and hopefully take out a few ricers along the way !! [img]graemlins/rofl.gif[/img]

[Chris Hacker]

So, the shop said it ended up being my fuel injector in my #5 cylinder. Anyone know anything about those problems. It's like $140 to replace it. And they said when one goes bad you pretty much are guaranteed the rest are bad as well. This true??

[CamaroRob97]

<blockquote>quote:</font><hr>So, the shop said it ended up being my fuel injector in my #5 cylinder. Anyone know anything about those problems. It's like $140 to replace it. And they said when one goes bad you pretty much are guaranteed the rest are bad as well. This true?? <hr></blockquote>

Sounds like they trying to upsale parts to you.

[mcG]

smokeyinswf, i know what u mean about gettin the plugs on the bottom. i forget which # they are but they're damn near impossible to get. the wires i didn't really have a problem with though...