as above...what are the symptoms for failure? Its been suggested to me that this might be causing my engine stutter.

When my car has warmed up the car can stutter on throttle. you can see from the fuel pressure gauge that pressure drops to zero. back off the throttle slightly and you can watch the pressure climb and then its ok until the next stutter!

when this happens the fuel pump also gets very noisy

thought it was fucked but i put on a new GpA badboy yest and its still the same!

rah

chop

 

sounds about right, had one go very recently on my Zetec, similar symptoms, changed it and all was well

 

hmmm interesting! did your pump get very noisy too?

 

noisy than usual, but not VERY noisy, no

 

interesting! im gonna get a new sensor sorted tomorrow. i hear its a bitch to get to tho

 

sounds more like you fuel presure regulator or a blockage some were on the fuel side

 

Pressure drops to zero?
If that genuinely happens then either:

1) The regs fooked.
2) Pumps fooked.
3) Pump wiring no good or the lines are restricted.
4) Blocked fuel filter.
5) Intake to pump blocked.

I dont see ANY other possibilities at all.

 

theres always something wrong with a cossie

 

cheers for reply stu...
yes you can watch pressure slowly drop on the gauge until you back off the throttle a touch and then it builds back up.

1. i was presuming the reg was ok because the pressure remains high on the gauge well after you turn car off. would this mean the reg was ok?

2. brand spanking GpA pump

3. next option...

4/5. could it really be that? car is PERFECT until its been run for 15mins or so. can boost as much as you like. then pump gets noisy and stutter appears.

any more thoughts?

 

No Pal, the little valve in teh end of teh pump is the one way check valve, the reg has no effect on pressure over time, only momentary pressure at given manifold depressions and pressures.

Fuel inlet, may be collapsing when the depression goes high, sometimes the inner skin may be collapsing internally, bit like an RS turbo intake hose if you follow from your old bean tin days yeah?

Why am i getting the feeling this car has NEVER had a new fuel filter here?

 

HI,

Agree as above check your regulator 3,bar @ idle 3.5 with vacuum
pipe off, CTS would cause the engine to run either to weak or run rich,
and then cause related problems, you need to sort the fuel pressure
out before you melt the engine as the AFR must be all over the place.


Dave R.

 

haha i remember collapsing beantin hoses

so a new filter it is! another thing to tick off the list!

 

anymore input today?

 

No more to give.. ive given you a definitive list of what is likely to be wrong.

 

sorry stu wasnt just harping on at you

just incase anyone else had the same prob.

cheers tho.

im off to ford for a fuel filter soon and going to change the above sensor anyway. want as many new parts on the car as possible

cheers

chop

 

That sensor cannot have any bearing on fuel pressure, only injector duration.

 

save your money for the sensor and spend it on stuff like new rubber fuel lines or something

here's a thought... check the metal fuel lines under the car... i've seen them squashed where theyve ben jacked up on the fuel lines, or smashed down a bumpy road etc. it can happen.

 

how easy is it to change the fuel filter?

when removing it will the fuel pour all over the place or will it stop at the pump etc??

was going to give it a bash on my own and was wondering if i should run the tank dry first??

 

Fuel should stop at the pump

Should take 30mins top but make sure you replace the copper washers

 

where do you get the copper washers??

ford?

 

I would guess that you get them form Ford but i just used ones out the box at work

 

ignore that top advice at your peril

 

Did you? Funny that my clothes were petrol drenched and had to take 2 showers to get the petrol off me! lol!

Looking about my books here at work, I can see that that filters on yer car are cleanable. Guess it has a screw lid, with a removable mesh.
Gesh! Just stuck my clothes in the wash yesterday on the 'get rid of the petrol smell' wash as well.

 

Chop, don't you remember, you were in my car at Croft when my car showed the symptoms.... stuttering and missing, because of a duff coolant temp sensor. Got it changed and it was fine after that.

 

Don't you think Stu might know a thing or two about these cars

Was your fault coupled with a fuel pressure gauge showing dropping pressure at the same time as the stuttering?











No? Thought not

 

thats a bit harsh mate and no need really. lynne wasnt dissing stu she just gave some personal experience. A couple of other people suggested the sensor including 2 trained RS technicians who have been at ford 25+years.

cheers tho lynne. gonna change the sensor anyway. cant hurt.

chop

 

haha sorry

*note to all*
robin is my friendly mechanic and just as well he knows what he's doing because i dont have a fuckin clue
my clothes are still in the garage

 

Read the title of the thread butt breath!

Engine Coolant Temp sensor - failure symptoms?

I gave the symptoms I had. So bog off and butt out.... moron!

 

Nope, sealed throw away alloy canister.

 

you forgot the

 

In all honesty though, i bet you didnt mention the falling to zero fuel pressure to them did you? If you did, they need sacking and handing a McDonalds application form.

 

i dont know if it makes any odds stu but my car hasnt got a standard filter...

 

haha i did explain it actually
its a guy i know well and not some random i spoke to at ford

when i said falls to zero im not actually sure its ever gone that far. when you can see the gauge slowly lose pressure you can back off throttle and it picks up to "normal" again. not like it falls instantly to complete zero. falls gradually.

 

Ok, so you just wanted to post something completely irrelevant to helping him fix his fault. Cool.











But I'm the moron



Oh, and personal insults? Classy

 

LOL.

Doesn't follow boost pressure by any chance does it?

 

I stand by my opinion, anyone who knows the system well will know the CTS cannot have any bearing whatsoever on fuel pressure.

When you say its never gone "That" far.... how far has it gone?

Std is 3.5bar, idle is nearer 3, anything with boost is 3.5bar+ the boost.


The plot thickens...

 

settle mate. to be fair the post title was just asking for what the symptoms were so she is right enough. i appreciate ANY input here!

unfortunately here in aberdeen i have NO decent garage to put the car too! wouldnt mind paying someone who knew what they were doing! i was going to find out how much a tow truck to blackpool is

 

Stop arguing please people... theres far too much tension round here lately.

 

what do you mean? does it fall as boost increases? no it doesnt. can happen at any time any revs any throttle any boost.

 

long shot but could it be something in the tank thats causing the problem at the feed to the pump?

As the pump will be noisey if there is no fuel going through it