Cobra is running like crap, any ideas? :(

[Spitfire_17]

Ok, so lately Ive noticed my car is acting weird as shit, basicly say im in 2nd, 3rd or 4th low in the rpm's, then give it some gas or floor it, say about 2k-3k or higher, it sorta stumbles like, go, then hesitate, then go, then hesitate. I have no clue what is going on and its very hard to explain what it feels like, like pulsing almost sorta thing... any ideas on what it could be?? :shrug:

 

[zx3focus]

IMRC's need cleaned maybe. Dunno. Does it feel like a fuel problem or an ignition problem?

 

[damonzex]

i have the exact same problem(s). Lemme guess, ur around 80k milage? i bounce forward and back when cruising at around 1-2k rpms in any gear, car stalls ALL the time at idle, and sometimes when i floor it in a low gear it gains power, loses power, gains, etc... my solution is im just gonna "take it in" soon. Not sure where yet though..lol

 

[cobraboy169]

maybe the fuel pump is going out

 

[Spitfire_17]

i have the exact same problem(s). Lemme guess, ur around 80k milage? i bounce forward and back when cruising at around 1-2k rpms in any gear, car stalls ALL the time at idle, and sometimes when i floor it in a low gear it gains power, loses power, gains, etc... my solution is im just gonna "take it in" soon. Not sure where yet though..lol

Yeah im at 86k, not sure if the car has ever had a "tune up" before seing how i got the car at about 75k or so.. mine runs fine at idle and sutch though, but when in gear with some gass it sorta bounces around, its really weird, none of my other cars have done it so i have no clue what it could be.. oke:

 

[venoNOS]

It could be a few things. For one check your o2 sensors. If they are going bad it will cause some hesitation cuz mine did and I replaced them and it ran fine afterwards. also it could be the fuel pump or filter and you could have fouled a plug or one is about to go out. Start by replacing the plugs and wires and if that does'nt do the trick go by an advance auto parts or auto zone and have them read the codes to see if anything comes back.Good luck.

 

[Midnight_Cobra]

CLEAN THE MASS AIR FLOW SENSOR!!! Thats exactly what mine did. would run fine to 3k rpm then like die. Aslo try cleaning your IAC (Idle air control)

Mass air cleaning website.

http://www.svtsnake.com/tech/mafclean.html

IAC website.

http://www.muscularmustangs.com/iac.php


Hope this helps.

 

[apg2369]

1) plugs
2) dirty maf wire
3) fuel filter bad
4) o2 sensors
5) bad spark plug wires
6) dirty air filter

on my 98 cobra around 70k it did the same thing and I put a fuel filter in it, then the hesitation was gone !

 

[white98snake]

Change fuel filter
Check plugs and wires
clean ur mass air

well apg got everything lol
goodluck

 

[STAMPEDE3]

You could clean the MAF, but

MY bet is plug wires.

 

[fullofvenom]

yeah, i'd say plugs and/or wires. mine was stumbling like that when i first got it (was sitting a while before I purchased it). new 9mm wires, coil packs and copper plugs (along with cleaning all the sensors/control valves) fixed that up.

 

[pipe]

check the plug wires first, thats what happened to me, one of the plug wires had a big cut in it and i guess energy power was leaking out of it.

 

[GMKILR9050]

+1 Plug Wires, mine only has 30K on it and the plug wires took a crap, set of FRPP wires fixed everything!!!

 

[Spitfire_17]

thanks guys, just cleaned the MAF and put on my JLT intake... seems alot better now, but i think it still does it a tinny bit. might go ahead and replace sparkplug's and wires here soon along with fuel filter

 

[Red98CobraStang]

thanks guys, just cleaned the MAF and put on my JLT intake... seems alot better now, but i think it still does it a tinny bit. might go ahead and replace sparkplug's and wires here soon along with fuel filter

good choice!! good luck

 

[Johns96Cobra]

mine did that too. it was a bad coil pack. replaced that and it went away.

 

[greenstang1313]

my car runs like that when the air conditioning is on

 

[Spitfire_17]

my car runs like that when the air conditioning is on

hmm ill have to check that out..