noname024

I have a 98 t/a and anytime i get the engine turning 5000 rpms it sounds like its sputtering or like its redlining. It feels like the car isn't pulling hardly at all once i get the rpms that high. Once i get it passed 5000 it pulls fine tho. I was thinking maybe an exhaust leak...but that doesn't explain it losing power. If anyone can explain this or has an insight to this problem it would be greatly appreciated. Thanks.

The Postman

iTrader: (44)

could this possibly be O2 related?....how many miles are on the car?

noname024

The SES light is on from replacing the passenger side cat with a straight pipe. But it never seemed to have this problem after i did it.

EVERETTDREW

iTrader: (2)

check your oil..

tomozey

iTrader: (2)

get a 100 shot and spray that motor its asking for it.lol j/k yeah check your oil.

letsrun97z

iTrader: (7)

you shold still scan it, even tho its from the cat not being there

noname024

Just checked the oil. Its fine. Its above operating level. I just changed it about 2000 miles ago anyways so I didn't think that was it. The car has 95k on it. Any other ideas?

The Postman

iTrader: (44)

a buddy of mine had the same problem......have it scanned and replace the 02's!

sixvi6-camaro

iTrader: (9)

Fuel filter.

FatZ28

iTrader: (1)

I was thinking fuel filter also....Would that be it though if the car operates fine above 5000 rpms. You would think if it was the fuel filter it would worse with higher revs.

andrew69_04

iTrader: (148)

wreck it, collect on insurance, and buy a different one.

SparkyJJO

iTrader: (11)

Hope you aren't serious

1994transamroxy

o2 sensor

ms4z28

thats retared its jus a lil problem your an idiot!
scan it its most likely an O2

noname024

I thought the rear O2's didn't matter. Isn't it just the front that have an effect on the performance? I'll have it scanned when i get a chance to run by auto zone.

FatZ28

iTrader: (1)

Yeah basically all the rear o2's do is tell the engine the cats are there and working.

noname024

So yah. Why replace the rear O2 then if its bad. And if its a front O2 the engine wouldn't run right at all right? I still haven't had a chance to get it scanned.

ae13291

iTrader: (8)

scan it then tell us the results! also its a good idea to change the fuel filter!

FatZ28

iTrader: (1)

Because you will throw a code and not be able to get it inspected. Doesn't effect performance at all as far as I know though.

fenix999

iTrader: (17)

fuel filter. Mine only had 60,000 miles and when i checked it to replace it, i pulled the old one out and couldnt blow throught it myself no matter how hard i tried thats how bad it was clogged. Car was doin exactly what you are describing, struggling towards redline. It will only get worse and if you dont change it fast it will take out the fuel pump with it as well. I cut the filter in half to find that it was full of **** and gunk. Change it and it'll feel like you picked up 50hp up top lol