Pull your valve covers and check your springs. I broke a spring and it acted very similar to what you're describing.

 

Have u messed with ur intake? check if the bolts are lose,if u ever changed it before might wanna check if any gaskets are missing, when I changed my intake at first wasn't getting a good seal, it would idle really high and wouldn't stay on without my foot on the pedal , my intake was sitting on the little vacuum line so I moved it torqued it and now it's fine,hope this helps......

 

that would suck if this was the case. when you have a broken spring can you hear anything? i can rev the car up fine but once the rpms get low it gets choppy then dies

 

still got the stock one and its been touched when i got the motor rebuilt but it has been running strong for months after that and thousands of miles. could be a vaccum leak though

 

you could be on to something, were should i look to see if this could be happening? when i popped my hood after this incident my IAT sensor was unplugged for some reason but theres lots of slack at that point so i dont see how it could torque and pull it out but who knows, i also have poly mounts

 

You don't have a check engine light tho? Find someone who can read your codes. There might be some stored that can help diagnose the car.

Is there any way you can get a sould clip of the noise you're hearing?

 

You should be able to hear it, but these cars have a pretty noisy valvetrain even when they aren't broken, so it's hard to say. I would be careful revving the car too much until you know for sure what's going on as you don't want to risk doing more damage to the motor if it's something mechanical.

I would definitely pull the plugs and if that doesn't tell you anything, pull the valve covers. And if it is a spring, they honestly are not that bad to replace, just time consuming and monotonous.

Also, does your oil and coolant look ok ? Make sure it isn't something like a bad head gasket or head problem.

Hope this helps.

-Ernie

 

Check the bolts holdings ur intake down,sounds similar to what mine was doing when they were lose,

 

Check the bolts holdings ur intake down,sounds similar to what mine was doing when they were lose,

 

oil pressure is good and all when it starts up like 70-75 pounds doesent overheat. i had codes but i only had misfire from when it died and the iat sensor because it was unplugged for some odd reason. ima check the bolts and get a vid up of how it idles

 

I cant figure this **** out

 

I asked you where the car is. I am in Plano and have scan tools and tools and everything else!

 

i got tools and a obd reader and everything but im just not a master mechanic. im in the colony right by the lake. i would love somebody to work magic on my car

 

im gm tech i get out of court tomorrow afternoon. give me a call and ill come look at it when you have free time. 214-683-1509

 

You said u had a missfire,did you fix it? If not pop ur Hood open in a garage with the lights off and check ur coil packs & wires, if any are bad they will throw a spark, u got to watch each one .

 

ok so i pulled the plugs and they were completely drenched in fuel and even smelled like it, all of them were black and looked the same. any ideas?

 

are these new plugs since your problem has started? or the same original plugs that were in there when the problem started?

 

the same since the prob started. i put new ones in last night and still not working.

 

im thinking fuel injector issue, wiring harness issue, or a spark issue but the car will run in park just not very good at all.

 

Sounds like a problem with spark. If they're covered in fuel, that means you're getting fuel into the cylendar.

Go to autozone and buy a spark plug tester. It should be like a spark plug wire with a "light bulb" that you put between the spark plug and coil. Should only be a couple bucks. If the cylendar is firing, then the bulb will flash at every RPM.

Does the car run at idle without pedaling the gas? Starting to sound like a big intake leak if you're hearing a whistle and it runs rough at idle... Plus if you have an intake leak, the engine will run lean so it will dump in extra fuel to try and even out.