02 expedition code p0320 problem

[02expedition26]

hi im new to this web site and need some help on my expedition trying to see if any one had related problems like mine..my 02 expedition with a 5.4l motor it stalls and shuts off once in a while when im driving its driving me crazy and the check engine light came on and it says code p0320 which means "ignition/distributor engine speed malfunction" i have changed the crank shaft sensor and i also changed the cam shaft sensor and the problem still continues any suggestions.....

 

[Richard Lewis]

I dont know if this applies to the 2002 but sounds close to what might be going on with years check out this link its for 2003-04 but might be whats wrong with your

http://ww2.justanswer.com/uploads/eppic60/2007-03-18_112203_tsb04-14-09.pdf

 

[Richard Lewis]

sounds like they have had a issue with wire harness causing it to intermitently shut off maybe the harness is rubbing on something

 

[02expedition26]

just changed the fuel filter,cam sensor,and the crank shaft sensor and its still running bad it turns off on me on low speeds and turns and the rpms go up and dwn its driving me crazy any other ideas i can check..maybe somebody had a problem like mine all help will be appreciated...

 

[02expedition26]

I dont know if this applies to the 2002 but sounds close to what might be going on with years check out this link its for 2003-04 but might be whats wrong with your

http://ww2.justanswer.com/uploads/eppic60/2007-03-18_112203_tsb04-14-09.pdf

thanks for the info ill check it out

 

[02expedition26]

well cam shaft sensor changed,crank shaft sensor changed,fuel pump changed,fuel filter changed and mass air flow sensor changed also.. and truck still dies on me and shakes..im wondering if it could the computer on the truck

 

[CARO'S98EB]

I would ck all the coils. the problem could be one is bad and it is feeding radio freq interference into the pcm. I have not seen this alot but it does happen.

 

[02expedition26]

I would ck all the coils. the problem could be one is bad and it is feeding radio freq interference into the pcm. I have not seen this alot but it does happen.

havent checked that im gona check that and i notice it only does it after like a hour of driving it start stalling and shutting off on me and when i turn the a/c its all hell broke loose the truck wont go and shut off on me

 

[CARO'S98EB]

I have also seen the ac clutch coil short out and cause drivability problems ck the wires at the compressor near the pulley.