[mr97stanggt]

hey guys thanks for the help

here is the problem

i start the car up drive it around for a bit no problem. then after a bit of a drive every time i stop for a red light or i stop or after i let off the gas the rpm starts to bounce. it drops down to 500 back to 1000 back down to 500 it does this 3 times after every time i stop. feels like it going to shut off on me.:sorry

the engine is stock except for a k&n cold air

 

[rewadferger]

sounds like the idle air control valve is clogged. you can take it off and clean it out using carb cleaner or replace it. or you can have a problem with your spark wires or plugs, or O2 sensors. is it throwing a check engine code?

 

[Lefty]

Try cleaning the IAC and let us know how that works.

 

[Big C]

Try cleaning the IAC and let us know how that works.

:withhomo

 

[97mustanggt]

spark wires

 

[97mustanggt]

tune-up time

 

[sharkbait]

Im getting the same issues. I think my E3 plugs are bad.

 

[Thumbie]

Im getting the same issues. I think my E3 plugs are bad.

the brand new ones? ouch

man, could be any number of things and I kind of have the same problem

 

[jasons_98gt]

i had the same problem a few months ago
turns out its something in the egr system, car sounded like **** and i ****, you could hear the exhaust purgin up and down then like you said stop at a light the rpm's would surge up and down, up and down, all i did was let it run and checked a few things then pulled the vacuum line from the egr valve and it stopped instantly. So try that, the bad thing is i never narrowed it down yet cause there's like 2 sensors the control the egr valve and never got a cel light, so might be the valve itself if u have a tuner turn the egr off bad thing is ****in exhaust really reeks now, hope it helps.
Also if it sounds like the valve is rattling when the car is running 99% chance thats it cause mine sounded like a baby rattle lol

 

[mr97stanggt]

i cleaned almost every thing ...and it stoped i even did an oil change monday im going to change the plugs and wires for the hell of it i didnt know what the problem was though ....and yea my exhuast stinks ...y is that?

 

[sharkbait]

Ive had the plugs for like 2 months but Ive had issues with them from the start. One of them shorted the 2nd day I had them. I think im going to switch to the NGK or whatever plugs. I'll let you know if that fixes it.