BStowers023

iTrader: (1)

I have a Trans Am WS6 H/C car made 451whp on the stock fuel system....I was driving friday night when all the sudden the car randomly started to sputter bad and a slight pinging came from the valvetrain. Ive already changed the spark plugs...still no fix. The car drove during the weekend just not good, put maybe 25 miles on it. This morning I go to start it up and it starts up runs for about 3-5 minutes then dies and now having trouble getting it to start. Im almost certain the problem is fuel related but not sure where to look first. The cars idle would drop extremely low whenever I would let off the gas, like 300-500 RPMs but typically wouldnt die. If anyone has any answers thatd be great, thanks.

Jon@Texas-Speed

iTrader: (18)

Check fuel pressure at the rail and see where it is at? Is the pump whining? How long since you changed the fuel filter? That's a couple things to start with.

Jon

BStowers023

iTrader: (1)

Have not checked the fuel pressure yet, The pump doesnt whine at all so i dont think its that. Im leaning towards the filter but its a pain in the *** to get to.

babbage1109

iTrader: (11)

Do you hear the fuel pump turn on when you turn the key "on"

BStowers023

iTrader: (1)

no, but i never did before. its completely silent.

babbage1109

iTrader: (11)

Ik on mine I can hear it prime. But I'd say the first thing is get a pressure gauge an check the fuel rails with the key on. Mine w/ key on was at around 50psi

BStowers023

iTrader: (1)

okay i will borrow a fuel pressure guage from an autoparts store and check that. Is it possible an injector could fail and the car could run for a little bit then stop starting? I had the car running and was pulling injector plugs to see if it made a difference and i pulled each one by one and didnt make a difference at idle, I even pulled 2 at once and didnt make a difference?

babbage1109

iTrader: (11)

Not saying that it is or not. But ik before my fuel pump went out it would start and stop spiratically. But I mean before getting into that mindset I'd check pressure first and the fuel filter took me all of 20 minutes to do.

BStowers023

iTrader: (1)

what easy way is their to get to the fuel filter? i head you have to drop the rear and tank to get to either fuel pump and filter.

babbage1109

iTrader: (11)

Raise up the Rear. It's this canister on the driver side near where the lca and frame meet. Clamp the hose from the tank and unbolt the filter. Have a pan under to catch the fuel. It won't drain out much. But literally the filter unscrews from the line and unclamps from the other side. Real easy.

BStowers023

iTrader: (1)

I was told you have to drop the rear not raise it? And yeah that seems easy but I also heard of a way to do it by cutting out a hole in your trunk where the TTops would sit....and you can get to it that way

KevinR

That's how you get to the pump itself, not the filter

94 Camaro Z28

Is this an LS1 or LT1?

BStowers023

iTrader: (1)

LS1, how do i raise the rear? transmission jack?

babbage1109

iTrader: (11)

^^posted in the new ls1 owners section. I assumed it was an ls1. Valid question though lol.

KevinR

He meant, just jack up the rear end.

babbage1109

iTrader: (11)

Nahi meant to the ls1 lt1 question.

KevinR

I know, but he was asking how to "raise" the rear end. Two questions, same post.

Anniversary "Z"

iTrader: (26)

They mean the entire rear of the car. I usually just jack up the driver's side since it literally is right below the driver's seat area. Make sure you have the new filter ready when you go to make the swap

BStowers023

iTrader: (1)

hmmm that sounds easy, okay i will try that soon. thanks for the help guys.