99.5 PSD cutting out

[high desert stroke]

So.....driving to my wifes family reunion today and the truck starts cutting out at freeway speeds. First, just once or twice and only for a fraction of a second. We keep driving and soon its getting worse and worse, especially downhill or flat cruising. Under load its not as bad but still does it and at low speed, like in traffic, its unbearable. It makes the tranny jump gears and rpm's go up and down terribly.
So after searching im leaning towards CPS but it was just replaced by Ford last year. Needless to say but my mother in law is pissed as hell me for not making it to the reunion. Any thoughts from the PSA?

Edit: I also pulled over and replaced the fuel filter hoping to get lucky but it still cut out after that. So...CPS? fuel pump?

 

[Slate]

Was the engine cutting out, or was it just RPMs jumping?

 

[high desert stroke]

1) cutting out at freeway speeds
2) rpms would jump up and down in low speed situations like from stop light to stop light

 

[high desert stroke]

Anyone any thoughts?

 

[smoker00]

Maybe CPS (Cam position sensor)

 

[dirtboy25]

Does cruise control make any difference? I've been battling similar issues for the past year and the cps did not fix my problems.

Could be pcm, uvch, loose/ bare wires, or possibly a tranny issue.

 

[Blowby]

Can you hear the pump running strong and not surging with key on engine off? Any work in the engine bay lately? valve cover harness loose? Did you have clips installed on the VCH "under" the cover yet?

 

[high desert stroke]

Does cruise control make any difference? I've been battling similar issues for the past year and the cps did not fix my problems.

Could be pcm, uvch, loose/ bare wires, or possibly a tranny issue.

Didn't use cruise control

 

[high desert stroke]

Can you hear the pump running strong and not surging with key on engine off? Any work in the engine bay lately? valve cover harness loose? Did you have clips installed on the VCH "under" the cover yet?

I will check the fuel pump tomorrow. Only thing ive done under hood was rebuild fuel bowl and install new tps under pedal

 

[high desert stroke]

Also the SES flashed very briefly then went away, if that means anything

 

[neverkickn]

It means you have a code stored. It would be very helpful to have that code.

 

[high desert stroke]

It means you have a code stored. It would be very helpful to have that code.

Ahhh......ok I'll try and get that pulled tomorrow as well

 

[Arisley]

Classic CPS symptoms.

 

[high desert stroke]

Classic CPS symptoms.

Thank you sir, I always hope you'll chime in:thumbsup:
Do you think Ford will cover it again? or am I SOL?

 

[Arisley]

They might, I would simply buy two, not that expensive. One for the truck and one for the glove box. If you have one in the glove box, the one on the truck will never fail. If you don't, the one on the truck will always fail. No clue why it works like that, I think it is some kind of deritive of Murphy's Law.

 

[DIE5EL]

My 97 did the same thing. Finally the CPS died and i had a no restart. Got a new CPS from local international dealer. I believe it was 26 dollars. Comes with a new o-ring. Been running like a top since.


Sent from my ifone

 

[high desert stroke]

ok, i'll replace the cps and report back. thanks guys!

 

[Arisley]

Don't go to a parts store. Go to either Ford or International.

 

[high desert stroke]

Don't go to a parts store. Go to either Ford or International.

Went to Ford last time (less than a year ago) this time I'm going to International

 

[neverkickn]

Went to Ford last time (less than a year ago) this time I'm going to International

Won't make a difference, you will get the same part.