mondeo not as powerful suddenly - tonyrees68
hi , my mondeo 1.8 1999 has had a downturn in performance the engine has done 86000 and sounds very healthy , always serviced twice a year , has had new cambelt 2000 miles ago but seems to be a lot slower on acceleration ,is this a clutch problem ,what do you think and if it is ive heard that a new clutch may cost a fourtune to replace as i think you need to drop the front end to fit one ,any suggestions
thanks for any help
take care tony.
mondeo not as powerfull suddenly - Lud
Does the engine accelerate without any acceleration from the car (in other words, is the clutch slipping)? If not, it isn't a clutch problem.

And replacement shouldn't cost a fortune although of course it won't be free.
mondeo not as powerfull suddenly - tonyrees68
hi Lud
thx for the reply well when i accelorate the noise is a little louder than normal but speed increases slowly i cant be sure if the clutch is slipping , still quite nippy in speed but definatly slower the engine seems to be as a said a lot louder so maybe the clutch slip is there but i dont know for sure is there another way i can tell if the clutch is slipping
cheers tony
mondeo not as powerful suddenly - MW
Try handbrake on, in first gear, pull away.
If it stalls = clutch good.
If it slips and doesn't stall at once = clutch bad.
mondeo not as powerful suddenly - Lud
Yup. And if there's a rev counter, just see whether there's any variation of engine speed while in the same gear. If there is, clutch bad.
mondeo not as powerful suddenly - Screwloose
Tony

Check for a split rubber hose to the round pressure capsule on the lower front of the injection pump.
mondeo not as powerful suddenly - tonyrees68
thx for the replies
checked the clutch issue and all ok there
Screwloose have checked the hose you told me about i think iam looking at the correct bit cant see any spilts or leaks
i guess that its just wear and tear on the engine maybe
if i wanted to change the hose from the injection pump is it just a straight swop (something i could do ) or is it more complicated than that .
thanks again for all the help
take care tony
mondeo not as powerful suddenly - bell boy
certainly sounds like the clutch
mondeo not as powerful suddenly - tonyrees68
bellboy hi
i think its a cluch prob as well ,i remember reading somewere that a mondeo does suffer from this at somepoint , iam hoping to keep the car for a few more years, yet so it might be worth having the clutch changed , but still more than interested in the hose from the injection pump thing that was mentioned
any ideas
thanks again
tony
mondeo not as powerful suddenly - Screwloose
Tony

If it was a short bit of soft rubber hose that attached to a gold tin-covered unit on the pump; then that was the one. If it's leaking, it's oily.

A drop in power is unlikely to be engine wear [not until 350,000] it could be that aneroid unit on the pump itself [the diaphragms split] or the timing solenoid or even complete failure of the control system; [these will still run.]

Take it to a diesel specialist; it shouldn't cost much to get the codes read and the fault investigated. You'll soon recoup the cost in better MPG.
mondeo not as powerful suddenly - tonyrees68
thankyou Screwloose
ill book it in
tony ;)
mondeo not as powerful suddenly - carl233
I had the same problem on a MK2 Zetec Mondeo and solved the problem with the following:

Run the fuel tank until nearly empty then fill with 98 RON or better petrol - then add an injector cleaner. Give the vehicle a good blast at least 4,000RPM.

Rubbish fuel can cause issues with the 16v Zetec-E unit I would consider the above before you book in and pay for diagnostic work, either way all the best with the problem.
mondeo not as powerful suddenly - bathtub tom
Hope it's not compression/ignition?
mondeo not as powerful suddenly - Micky
Did the drop in power occur immediately after the cambelt was changed?
mondeo not as powerful suddenly - tonyrees68
no the lack of power was quite a while later after the cam belt change ,ive had a good look around the engine ,no leaks anywere at all .
as for the petrol i always put in the good stuff never put ant cleaner through it though, ill try that ,its a shame really becuase other wise its a very smooth and nice car to drive
thanks for all the replies again iam sure il get this sorted soon with all of your help
cheers guys
mondeo not as powerful suddenly - Micky
All service items "in date", including fuel filter?
mondeo not as powerful suddenly - tonyrees68
no the fuel filter has not been changed worth a try thx Micky
cheers tony
mondeo not as powerful suddenly - carl233
In addition to trying injector cleaner - I would also ensure that 5w30 oil is being used and ideally to API SJ/SL grade. The Zetec-E engines are very durable units. I would not expect engine failure until at least 250-300k miles. My 1997 Zetec MK2 has 115k on the clock and drives like a new car - they are one of the most durable engines ever released by the blue oval.
mondeo not as powerful suddenly - tonyrees68
hiya all ive added some injection cleaner and had the fuel filter done by my local garage and have noticed quiet a bit of difference the car is going very well ,all seems to be great with it the performance is very good indeed now .
well just to say a very big thankyou to everyone thats helped me with this problem a great site and some great guys
thanks all again beer is on me
cheers take care tony
ps i hope i might be able to return the favour one day
mondeo not as powerful suddenly - Boggy
The rubber T-piece that fits into the plenum chamber behind the mass air flow sensor is one of Ford's best selling parts. If your acceleration from a standing start is very 'jerky', get this checked out, as air is getting in where it shouldn't be and may be causing the problem, or at least contributing to it.