Cobra wont accelerate past 3k rpm!!!

Y

yz125yamaha10

New Member

Jan 1, 2004

48

0

0

Apr 3, 2006

#1

• Apr 3, 2006

• #1

I decided to change the trans fluid on my pony so i raised it up on stands about 16 inches up crawled under drained it/refilled it. i set the car back down and go for a drive... car is just stumbling cant give it any gas or it will die and engine sounds weak.I did not touch a thing other than the drain and fill plug on the trans.im thinking what the hell did i do???? i checked the visible fuel lines to see if i had maybe damaged one when lowering the vehicle as the jack could have hit something..gas tank maybe.i checked all ignition stuff,mass air, none of the injectors seem to be leaking all looks well? If anybody has some suggestions please let me know. thanks

 

U

Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Apr 3, 2006

#2

• Apr 3, 2006

• #2

The car isn't throwing a CEL?

U.M.

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

7

89

the people's republic of massachusetts

Apr 3, 2006

#3

• Apr 3, 2006

• #3

any chance you crimped the fuel lines on the passenger side they are a hard plastic but if you sandwich them between a jack and the floorpan you may crimp them.

 

A

AlexGT

New Member

Apr 3, 2006

1

0

0

Apr 3, 2006

#4

• Apr 3, 2006

• #4

Uncle Meat said:

The car isn't throwing a CEL?

U.M.

Click to expand...

My old 95 V6 did that for a while all of a sudden. At about 3200 RPM the engine would just bog down and wouldn't go higher than 3500 RPM. It stopped doing it a few days after it started and never had the problem since.

I have no idea what caused it... was very strange.

Check Engine lamp did not come on at all either.

 

csledd

Official Ovary Punching Member

Founding Member

Aug 18, 2001

1,115

1

0

Paducah, KY

Apr 3, 2006

#5

• Apr 3, 2006

• #5

everything look cool with your throttle and TPS?

other than that the only thing I could think of would be the fuel lines

 

Y

yz125yamaha10

New Member

Jan 1, 2004

48

0

0

Apr 3, 2006

#6

• Apr 3, 2006

• #6

I tried to drive it over to the local garage the thing DIED on the highway.. had to have it towed. It threw a cel just before dying.I checked fuel lines best i could but under the plastic shroud for the gas tank no clearence to look. It has to be a crimped line under the gas tank... i have checked everything twice and no luck. as soon as the the garage lets me know i will post let other guys know so nobody makes a foolish mistake like me.. i think

 

jasonh_86

I

May 20, 2005

1,156

2

48

Arkansas

Apr 3, 2006

#7

• Apr 3, 2006

• #7

Sorry to hear about that.. Hopefully it's nothin major!

 

fluffyrunnells

New Member

Feb 4, 2006

0

0

0

new hampshire

Apr 3, 2006

#8

• Apr 3, 2006

• #8

...sorry man

 

Y

yz125yamaha10

New Member

Jan 1, 2004

48

0

0

Apr 4, 2006

#9

• Apr 4, 2006

• #9

shop called today said my fuel pump was faulty not holding/ maintaining pressure . 23,000 miles and i need a new fuel pump,wtf. Rules out me damaging it on a jack tho..

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

7

89

the people's republic of massachusetts

Apr 4, 2006

#10

• Apr 4, 2006

• #10

you should have checked the lines that run from the tank to the front of the car. I doubt the lines above the tank are damaged.

the fuel lines run along the passenger side floor and if you jack the car wrong you can pinch them.

 

Y

yz125yamaha10

New Member

Jan 1, 2004

48

0

0

Apr 4, 2006

#11

• Apr 4, 2006

• #11

no i did check them all the way. i welded sub frame connectors in before myself so i was pretty familiar with them

 

Dan_Soprano

15 Year Member

May 7, 2003

7,410

54

129

Jacksonville, FL

Apr 4, 2006

#12

• Apr 4, 2006

• #12

wow, whats the chances of that happening right after changing the tranny fluid? Crazy.......

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

7

89

the people's republic of massachusetts

Apr 5, 2006

#13

• Apr 5, 2006

• #13

Dan_Soprano said:

wow, whats the chances of that happening right after changing the tranny fluid? Crazy.......

Click to expand...

yeah I agree. I have seen it happen before, it's really hard to explain to the customer that it's not your fault.

 

GoBabyVroommm

Active Member

Mar 22, 2003

1,156

0

36

Chicago, For Realss???!!!

Apr 5, 2006

#14

• Apr 5, 2006

• #14

svttech76 said:

any chance you crimped the fuel lines on the passenger side they are a hard plastic but if you sandwich them between a jack and the floorpan you may crimp them.

Click to expand...

That maybe it if you have a fuel pressure gauge when your hammer it see if fuel drops. Mines set at 40psi i think stock is like 35psi.

 

Matt1323

New Member

Sep 8, 2012

6

0

1

Sep 8, 2012

#15

• Sep 8, 2012

• #15

Well guess what guys..I also have the same problem with my 1999 GT conv. I currently have flow master super 40's K&N CAI Steeda under drive pulleys and a new intake manifold stock..i've changed the plugs 2 months ago and i've recently changed the gas filter oil change and coils. and the same thing happens again. i've cleaned my MAF sensor and my K&N filter but my mechanic can't find anything with his computer scanner any suggestions or ideas... I've changed the fuel pressure and its at 40 psi at idle

 

Matt1323

New Member

Sep 8, 2012

6

0

1

Sep 8, 2012

#16

• Sep 8, 2012

• #16

I've checked the fuel pressure and its at 40 psi

 

Matt1323

New Member

Sep 8, 2012

6

0

1

Sep 8, 2012

#17

• Sep 8, 2012

• #17

i think idle is at 20 if i'm not mistaken.. i'm going crazy that i can't find whats wrong with my pony...and its a 5 spd manual transmission