Ok so some of you know I've had some problems with my car randomly dying...shutting off for no reason, then starting up fine. Well, now, I'm confused...a new problem. I'm driving down our main drag, actually driving decent and normal and maintaining a normal speed when the TGP suddenly starts to "wind down"?...I don't even know how to describe it.

It just made this low sound from around the exhaust, more than likely under the hood, and it was a hard rumbling...the car started the shudder. It seemed that whenever I tried to give it more gas and get up to a faster speed it shifted hard into gear and felt like it was running on less than the 6 cylinders it has...I've never experienced a loss of clyinders so I'm just guessing and describing it as best I can. If I floored it, it went really slow accelerating, and you all know they aren't supposed to move that slow.

Can anyone recommend what they think it is before I go blowing money I don't have on having the shop look at it. Please help me.

Krenzy


I edited the title of your thread because it has bounced all over the place! ;)
-Kenny :icon_cool:

can we get pics of the motor?

The hose sticking out of the valve cover has been replaced by an oil breather filter...My worst fear and best idea is the x-over...and I can't get ahold of Jeff M. about a new one.

I'll also add that there is a cut on the top of the exhaust a few inched after the cat closer to the rear...but it's been clamped shut since I got it and it's never been a problem.

Thanks and I'll be on probably once more tonight before I go to work so I hope I can help even more. Thank you.

I'm sure the x-over is a big contributor to your problem.
Probably wouldn't hurt to do the typical tune up after you replace the x-over too. Plugs, wires, Crank sensor, O2 sensor, Throttle position sensor, etc..

I know Jeff has been away for a while, so It's hard to say when he will get back to you.

Quote from: GangstGP on April 24, 2006, 05:23:12 PM
can we get pics of the motor?

Are you trying to get a vision of the motor to link with it telepathically and diagnose it like the new OnStar system?

If you say that you have ground straps for him and it will fix it you are PERMA-BANNED!!!! :icon_cool:

ground strap.   :laugh:

that cross over needs to come out and be replaced with a non cracked unit, needs a new O2 sensor and top end cleaning, new crank sensor, plugs and wires.  injectors can cause issues with stalling and poor idle too, I am proof of that as mine has smoothed out with 6 new bosch injectors, runs better than it ever has. 

I know it sounds hypocritical, but don't use Bosch ignition parts.  These injectors will have to prove themselves, but bosch sensors, plugs and wires and o2 sensors are terrible!!! use AcDelco plugs R42LTS, Delco wires, and a GM o2 sensor.  new xover and all that you will be riding smooth. 

Agreed Crossover would make the diffrence

 :laugh:  lol.  i was wandering the same thing.

Quote from: TGPilot on April 24, 2006, 07:13:48 PM

Quote from: GangstGP on April 24, 2006, 05:23:12 PM
can we get pics of the motor?

Are you trying to get a vision of the motor to link with it telepathically and diagnose it like the new OnStar system?

If you say that you have ground straps for him and it will fix it you are PERMA-BANNED!!!! :icon_cool:

 :laugh: are you guys serious? It bothers you that much? maybe it wont help, but cant hurt. only in the long run.

Not much to add, agreed with what has already been suggested, as I had these problems and they all went away when the chip/crossover/sensors were replaced......

Oh, stock TGP engine compartments are nasty looking I decided....WAY to busy and cluttered  :leaving: :willy_nilly:

does anyone think mabye its a fuel delivery problem like the fuel pump for somthin?

Quote from: Prospeeder on April 24, 2006, 10:36:30 PM
does anyone think mabye its a fuel delivery problem like the fuel pump for somthin?

By what he described, I'll say, closed/part throttle, full/lots of vacuum, plus cracked crossover, O2 reads lots of air, dumps tons of fuel in it, makes it bog from being overly rich, it dies......so it could "technically" be a fuel delivery problem, caused by other things. 

no, its the electronic components not functioning properly from a weak charging system! :icon_lol:   J/K!

Ok, so after a few months, here's where I'm at: Replaced the cracked crossover with a Kenny Crossover (Kick ass unit, and it sounds better under the hood), Invasion1 custom chip, new plugs, O2 sensor, oil change, new coolant.....Well, anyways, I'd been avoiding tackling this car because of my time consuming job, and I recently got some time off. So When all this has been changed, I'm left with a problem yet: The tranny still doesn't shift/feel right. I replaced, well, since it was totally gone, I PLACED, the transmission T check valve and did it right...still kicks whenever it changes gears, and it takes forever to change the gears. Actually it runs the gears right up to 6100 rpm before it feels like it will change...lately I've been manually letting off the gas so it can shift for fear of something bad worse happening. I'm really needing more suggestions. This car needs to be ready for the winter season and I'm commiting all my extra time to her. Could it be a bad tranny filter? Timing off? Tranny going out? Torque converter going out? Did I install something wrong? I know the crossover is seated right, and I reset my ECM for the chip. I'm going nuts wracking my brain with the few things about this car I know...Like I said, what else can I do?

Krenzy

How is the TV cable?

When its not adjusted properly it will shift hard and shift at higher RPMs....I would check that first, its free....