95 GT running poorly

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gnats50

New Member

May 10, 2004

11

0

2

May 10, 2004

#1

• May 10, 2004

• #1

I have a 95 GT with full mac exhaust, TFS street heat intake, E303 cam among other mods. Here's my problem, at full throttle when I get to 4500rpm or so the engine sputters and runs pretty bad. If I back off the throttle and drive "normal", it is fine. Got any Ideas? I had the O2 sensors go bad on my 87 and I think it acted the same way, but thats been years ago so I don't remember for sure. It might possibly be the fuel pump. I don't know. Any help would be greatly appreciated!!!

 

jermy82

Founding Member

Feb 2, 2002

446

0

0

Sherman, Illinois

May 10, 2004

#2

• May 10, 2004

• #2

I'd say fuel pump is a definate possibility. Mine did something very similar and as soon as it was replaced the problem was gone.

 

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1995gtsc

New Member

May 3, 2004

6

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ky

May 11, 2004

#3

• May 11, 2004

• #3

Mine did exactly the same thing. I finally found out the throttle position sensor on the throttle body was not plugged in completely. Good luck.

 

302fordracer

New Member

Mar 27, 2004

738

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0

Vancouver, WA

May 11, 2004

#4

• May 11, 2004

• #4

from that description many possibilities arise....check the fuel filter, put in a fuel sytsem cleaner too....fuel pump sounds quite logical....what kinda gas mileage you get cause I think a bad O2 sensor would yield poor mileage too but also a possibility..those are my thoughts.

 

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gnats50

New Member

May 10, 2004

11

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2

May 24, 2004

#5

• May 24, 2004

• #5

FYI, If anyone takes a look at this. I replaced the fuel pump, nothing! Decided to advance the timing and wouldn't you know it $100 later and a free mod fixed the problem! It needed a bigger fuel pump anyhow.

 

mytight95

Active Member

Apr 11, 2003

2,605

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46

Dothan,Al

May 24, 2004

#6

• May 24, 2004

• #6

whats your timing set to now. It sounds to me like you may have forgot to put the spout in or something if it was breaking up around 4500


just my .02

jason