i have a 95 gst m/t and its running very bad...
the first problem is the idle, its up and downn and sometimes stals out when i coast into a stop...i dont know if its a vacum problem or maybe the throttle posion sensor idk....

and the other problem i have is when i accelerate the front vibrates very bad. and it will pull the car to the right.... im thinking it might be the tranny mount .....

any help would be great and if anyone around plant city is good with tuning with a safc that would be great....

 

how long have you had this car for? or did you just buy it?

 

just got it

 

Vibration could be motor mounts, suspension bushings, ball joints, wheel bearings, etc.

Idle surge is caused by either vacuum leaks or the ISC (idle speed control) motor has gone out on you.

 

Start with a boost leak if you have none than its the ISC.

I have a extra trany mount ill sell you!

 

have any of you done the vac plug mod?
Taboo speed shop vacuum diagram and removal for 1g and 2g. - DSM Forums

since all mine are f;d im thinking of trying it

 

i would like to see the motor, can we get a pics..

 

What you will need to make a boost leak checker:

1. pvc cap (home depo or lowes)
2. coupler to fit the pvc cap/intake side of the turbo (home depo or lowes)
3. valve stem (any auto parts store has them)
4. drill bit small enough for the valve stem to fit tight in the pvc cap (drill in the middle of the cap)
5.Place the tap pvc cap in the coupler and tighten it tight.

CAR install and check:
1.Make sure cyc#1 is in TDC (cyc1 is the closest to the timing belt)
2.Take your intake off the turbo
3.place your Pvc/coupler on the turbo (tighten it down)
4.Hook an air compressor air fitting to the valve stem that was drilled in the pvc cap
5.While you are filling the turbo with air listen for leaks. (water and soap in a squirt bottle works great to spot leaks)
6.Have someone watch the boost gauge to see how much air/psi you are building in the system.

Tester should look like that (coupler and cap depends on your turbo intake size)
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvv

That sums it up I think.Rep?

 

car pulling along with vibrations can be a bent wheel or a tie rod end..

 

why the idle goes up and down is probably your idle air control (idle speed is the same thing). mine was doing it to and i replaced it and now it idles fine but im not sure why it shut off. mine shuts off to but i havent figured out why yet