5.0 problems?

Ford Forum Ford Classifieds Photo Gallery Member List Search Ford Recalls Contact FF Sponsors
Ford News Ford Lineup Forum FAQ Calendars Ford TSB's Register Login

5.0 problems?

Printable Version

Ford Forum >> Ford Cars >> Ford Mustang >> 5.0 problems?

Page: [1]

Message

<< Older Topic Newer Topic >>

5.0 problems? - 7/10/2007 9:50:08 PM

roger fogarty

Posts: 4
Joined: 7/10/2007
Status: offline

i got a 90 5.0 5spd that i got in a auction last year.
the car is set up with almost everything i wanted on a 5.0
my problem is that it runs great untill i press in or some times let out the clutch.
this also happens when im putting it in gear?
i have checked every thing i can think of a thousand times and still it dies.
i have some experiance with these cars. i think this is my 6th one.
i was wondering if it could of been a auto converted to a 5spd and still had the auto ecu in it
could this be the problem?
if any one can lead me i the rite direction i would be very greatfull.
thank you.

_____________________________

stalling mustang?

Post #: 1

RE: 5.0 problems? - 7/10/2007 10:58:12 PM

Hayapower

Posts: 2082
Joined: 7/22/2006
Status: offline

Any CEL or stumble 'without' the clutch engagement?

_____________________________

05 F250 C/C FX4 6.0
1969 Firebird Trans Am
2003 Hayabusa GSXR1300

(in reply to roger fogarty)

Post #: 2

RE: 5.0 problems? - 7/11/2007 6:02:35 AM

paytyn1

Posts: 1
Joined: 7/11/2007
Status: offline

it just dies. no surging or anything.

(in reply to Hayapower)

Post #: 3

RE: 5.0 problems? - 7/11/2007 6:57:13 AM

roger fogarty

Posts: 4
Joined: 7/10/2007
Status: offline

it runs fine with no hesitation or stumbling untill depressing the clutch or putting it in gear then it dies.

_____________________________

stalling mustang?

(in reply to paytyn1)

Post #: 4

RE: 5.0 problems? - 7/11/2007 7:30:27 AM

Use Common Sense

Posts: 540
Joined: 1/12/2007
Status: offline

The stumbling and or stall could be caused by the PCM seeing the TPS in the idle position and the tranny load on the engine even though a small load while in neutral. Depressing the clutch suddenly removes the load, the PCM over-compensates, and the engine stalls. Check to make sure that your throttle boby is clean and IAC is working OK with no crud build up in it. It could also be caused by a loose ground that vibrates during the time you depress the clutch or let the clutch out causing the injectors to operate improperly (Been there-Done that on my 88 Ranger). A faulty ground for the injectors will cause the injectors to NOT flow fuel. Check all body, PCM and frame grounds. Since it's a 1990, I would go back to Auto 101 and disconnect all connectors and grounds one at a time and verify they are good and clean. Hit them with a touch of dielectrical grease while your at it. It won't hurt and you'll have eliminated that portion.

< Message edited by Use Common Sense -- 7/11/2007 7:32:26 AM >

_____________________________

2004 Freestar Limited 4.2 V6 w/Water Injection & Iridium plugs
2008 Mercury Sable 3.5 V6 w/Opened Air Box

AMSOIL Lubricants and Filters in everything

"Have a good day, and a better one tomorrow"

(in reply to roger fogarty)

Post #: 5

RE: 5.0 problems? - 7/11/2007 9:24:05 PM

roger fogarty

Posts: 4
Joined: 7/10/2007
Status: offline

thanks for the heads up ill check it out this weekend!

do you know of any differences in automatic and stick computers?
i here a lot of things from my friends but they all drive "chevys" if i can get it fixed im going to put the 331 i built in to give there "chevys" a run.
thanks again ill be back if i get stumped

< Message edited by roger fogarty -- 7/11/2007 9:44:45 PM >

_____________________________

stalling mustang?

(in reply to Use Common Sense)

Post #: 6