Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman

Hello,

This is a long bit story but i feel it essential to accurately describe the issue with my car.

Upon turning off of a roundabout, I began to accelerate to get up to speed. Upon accelerating my car began to lose power and slow back down, I find myself accelerating harder to compensate for this power loss, I noticed that whenever i accelerated harder the car would put a puff of white smoke behind it acompanying this white smoke was a loud metallic grinding noise, loud enough to be heard over a playing radio. I carried on until finding a safe place to stop and then turned the engine off, lifted the bonnet and checked the oil, coolant and for anything that looked out of place in the engine bay.

I decided to try and start the car and was sucessful after the engine turned over a few more times then usual. When the engine started it was back to normal again and the fault was not there. I decided to try and make the half a mile to my location where i could safely and more organised look at the issue in further detail. As soon as I turned back onto the road the issue began again however now there was no safe space to stop for about a quarter of a mile. The white smoke had stopped but the metal grinding noise had not. I reach another roundabout and try to make it to my exit that had a safe space to stop and call recovery. I pulled onto the roundabout and the engine cut out leaving me to coast to my exit and push the car to the side of the road.

Upon restarting the car turned over the engine 8-10 times before starting and then started and ran rough, attempting to drive or even rev caused it to stall out but would always start again.

When the recovery agent arrived he used a advanced scan machine to check for codes and none was stored which wasn't a surprise as the engine light was not displayed. The recovery agent was suspect of the injectors being the problem but could not confirm it and there was not any issues before this to suggest the injectors being an issue.

I had the car recovered and returned to it a few days later to which it would not start. The engine turns over and spits out a puff of black smoke with every turn but cannot start anymore.

I did some research into this fault and some people have suggested this may be an EGR fault so I have taken the EGR off and replaced it with a blanking plate to eliminate it from being a fault but it has made no change in the situation. While replacing the EGR I checked the inside of the turbo and found it to not be at fault. There is no oil inside and the turbine blades are undamaged on both exhaust and inlet side.

I have very little money and cannot afford the extortionate fees diesel specialists charge and every mechanic i have spoken to has told me to get it towed to a diesel specialist but this would very much exhaust all money i have to fix it before knowing what is even wrong.

My question is what do you think the fault is?
Is it an easy fix?
Do i need to take this to a mechanic?

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Ian D
Injectors or fuel pump maybe. Changing random parts may cost you more than going to a diesel specialist with good diagnostics. Where are you?

Edited by Ian D on 04/03/2021 at 06:45

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman
Injectors or fuel pump maybe. Changing random parts may cost you more than going to a diesel specialist with good diagnostics. Where are you?

As AA suggested the injectors may be at fault but it doesn't make sense to be running one day and not the other?

I'm on the edge of newark area and the cars at my mums on the edge of nottingham so i'm taking suggestions to try when i go back and forth.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - chris87
Sounds like a fuel pump (high pressure one) issue to me, especially given the grinding noise.

What’s the mileage and does your engine have a timing belt? When was it last changed?
Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman
Sounds like a fuel pump (high pressure one) issue to me, especially given the grinding noise. What’s the mileage and does your engine have a timing belt? When was it last changed?

It's on 196,000 but i have no service history.. sounds bad i know but it was a very very cheap price for what it is and worked for over 10k miles with no issues.

Think this ones a chain driven engine but it started fine after the cut out so wouldn't expect it to be the issue.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - elekie&a/c doctor
To get any further with this problem, somebody will need to carry out some tests and diagnostic procedures. It’s certainly possible that an injector (s) fault can cause this issue , but unfortunately crystal ball diagnostics don’t work . Either get it looked at or scrap the car .
Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman
To get any further with this problem, somebody will need to carry out some tests and diagnostic procedures. It’s certainly possible that an injector (s) fault can cause this issue , but unfortunately crystal ball diagnostics don’t work . Either get it looked at or scrap the car .

I appreciate your response, however I have posted this thread to see if anyone has had the same or a simmilar issue before and can point me in a rough direction. I can see your confusion but i assumed fourms were for people to gather and discuss topics they are intrested in.

I do not expect anyone to reply however have created the fourm to update my findings for future documentation so other people with simmilar issues can relate to and do with the information as they will and take the input of people who have an understanding of the issue / have experienced the issue in the past and how they ammended it if they wish to comment. So instead of a crystal ball diagnostic this is me reaching out to peers to evaluate there input and make a informed decision.

I have found the failing injector however I am more trying to find the non-start fault now so i can get the car to the mechanic to replace the injectors.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - catsdad
Aidan, the trouble with online forum advice is it's often well-meaning, but wrong.
It's up to you but having read elekie's advice on a number of issues over the years he is worth listening to.
Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman
Aidan, the trouble with online forum advice is it's often well-meaning, but wrong. It's up to you but having read elekie's advice on a number of issues over the years he is worth listening to.

I understand what he's saying and as i mentioned i appreciate his response. I often find fourms can be either generally kind or very hostile so covered both basis quickly and meant no hostility by my response.

I know information can generally be wrong and even the exact same faults can be two different issues but my ideas to receive people opinons and relate that to my situation. To help make a more informed decision on what to do. I am not relying on this forum for all my information and have been in touch with several well educated people in this subject to learn more about the fault and where to progress. Knowledge is a great thing and everyone knows something someone else doesn't so taking input from more then one source is always a good basis.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Railroad.

A diesel engine needs the following four things to enable it to run. If your engine runs badly or not at all then one or more of these four will ultimately be the problem.

1. A good supply of oxygenated air

2. Good compression

3. Fuel oil injected in a high pressure spray at the right time

4. A clear unrestricted exhaust.

Work through these one at a time to find what's wrong. As I said, whatever the reason why the engine isn't running correctly it'll come down to one of these four.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - jc2

It would be helpful if the responder read ALL the previous posts-getting told to try things you have already tried and excluded would get up anybody's nose!

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Railroad.

It would be helpful if the responder read ALL the previous posts-getting told to try things you have already tried and excluded would get up anybody's nose!

Very true. But it would also help the OP if he were to have an understanding of how engines work. Unfortunately too many people these days only think they know. Many are much too reliant on computer type diagnostics without having the root knowledge of what they're being told and what individual components actually do, and how the control module interprets information. This is why people blame this sensor, that switch, this component. And they are very often wrong. Fundamentally the internal combustion engine is no different from what they've always been. They have always been and still are suck, squeeze, bang, blow. Internet forums can just as easily lead people up the garden path as much as they can be useful.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Aidan Hickman

It would be helpful if the responder read ALL the previous posts-getting told to try things you have already tried and excluded would get up anybody's nose!

Very true. But it would also help the OP if he were to have an understanding of how engines work. Unfortunately too many people these days only think they know. Many are much too reliant on computer type diagnostics without having the root knowledge of what they're being told and what individual components actually do, and how the control module interprets information. This is why people blame this sensor, that switch, this component. And they are very often wrong. Fundamentally the internal combustion engine is no different from what they've always been. They have always been and still are suck, squeeze, bang, blow. Internet forums can just as easily lead people up the garden path as much as they can be useful.

I am still young and learn cars in my own time as a hobby.

I have a wide understanding of techonology and have actually built my career around it but do not go to fourms to talk down to people about it or insinuate they are in some what worse then me because they do not understand it.

As i learn this as a hobby I do not know absolutely everything about engines and how they work you are correct and i especially do not know much about diesel cars being this is the first one I have ever owned or worked on. May i mention no one asked you to comment and your need to comment to just try and talk down to anyone who does not have a much of a history in mechanics as you is not really the best way to be spending your time.

Now as the world develops so does cars so modern day engines use the advanced technology accordingly and just like anything this technology can fail and result in sensor issues and faults. So almost any fault on a modern day car can be caused by a faulty sensor or component.

Now talking about my car as i suggested I will be taking input from my peers and using their information to make a informed decision on what to try next. I know my car has good compression, I know my car is receiving some sort of fuel to the engine even if it is to only 3 cylinders, I know my car is receiving air and i know the exhaust is unrestricted and working. Now my diagnostic have all been made without a code reader or using any computer based diagnostic. What I am trying to diagnose is why it isn't reciving enough fuel, I diagnosed this to a faulty injector before even posting to this chat.. Next was why it wouldn't start so that resulted in rechecking all above i have mentioned and again i have now diagnosed this to air, the EGR was faulty and needed replacing and a vacumm leak on the inlet manifold sealing. So as much as your comment is appreciated it is not needed and please take your negativity else where.

Due to the plain hostility of this fourm i will be withdrawing from making any more comments on this thread and will not be dissapointed if it is closed.

Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? - Railroad.

It would be helpful if the responder read ALL the previous posts-getting told to try things you have already tried and excluded would get up anybody's nose!

Very true. But it would also help the OP if he were to have an understanding of how engines work. Unfortunately too many people these days only think they know. Many are much too reliant on computer type diagnostics without having the root knowledge of what they're being told and what individual components actually do, and how the control module interprets information. This is why people blame this sensor, that switch, this component. And they are very often wrong. Fundamentally the internal combustion engine is no different from what they've always been. They have always been and still are suck, squeeze, bang, blow. Internet forums can just as easily lead people up the garden path as much as they can be useful.

I am still young and learn cars in my own time as a hobby.

I have a wide understanding of techonology and have actually built my career around it but do not go to fourms to talk down to people about it or insinuate they are in some what worse then me because they do not understand it.

As i learn this as a hobby I do not know absolutely everything about engines and how they work you are correct and i especially do not know much about diesel cars being this is the first one I have ever owned or worked on. May i mention no one asked you to comment and your need to comment to just try and talk down to anyone who does not have a much of a history in mechanics as you is not really the best way to be spending your time.

Now as the world develops so does cars so modern day engines use the advanced technology accordingly and just like anything this technology can fail and result in sensor issues and faults. So almost any fault on a modern day car can be caused by a faulty sensor or component.

Now talking about my car as i suggested I will be taking input from my peers and using their information to make a informed decision on what to try next. I know my car has good compression, I know my car is receiving some sort of fuel to the engine even if it is to only 3 cylinders, I know my car is receiving air and i know the exhaust is unrestricted and working. Now my diagnostic have all been made without a code reader or using any computer based diagnostic. What I am trying to diagnose is why it isn't reciving enough fuel, I diagnosed this to a faulty injector before even posting to this chat.. Next was why it wouldn't start so that resulted in rechecking all above i have mentioned and again i have now diagnosed this to air, the EGR was faulty and needed replacing and a vacumm leak on the inlet manifold sealing. So as much as your comment is appreciated it is not needed and please take your negativity else where.

Due to the plain hostility of this fourm i will be withdrawing from making any more comments on this thread and will not be dissapointed if it is closed.

Believe it or not my comments were intended to help you, not criticise you for any lack of knowledge you may have or otherwise. I am merely pointing out that essentially you problem will fall into the four categories I mention, as will any other problem with any engine. You should be assured that diagnosing faults on car engines isn't actually as hard as it seems. You just need to have the right understanding and go about it the right way.

Far too many technicians both professional and DIY go for the most complicated first, completely ignoring or overlooking the simple things which often are the cause. If you suspect a faulty injector you could have them tested by a diesel specialist. The most likely reason why one or more injectors may be faulty is a worn nozzle. But this would give rise to excessive exhaust smoke due to inefficient combustion, or excessive diesel knock. Diesel fuel does not vaporise at low temperatures. The compressed air must get to around 500°C, and the fuel needs to be injected in a high pressure fine spray to self ignite. Use a scantool to check fuel rail pressure. This needs to reach around 10,000KPa (100bar or 1,470psi) for the engine to even start. At high engine speeds the FRP should get well over 100,000KPa. If yours doesn't then suspect worn injectors or a faulty pressure relief valve.

Diesel engines have no throttle and therefore no manifold vacuum, so a leak on the inlet manifold will make no difference to the engine running. A blocked manifold however will make a big difference, and this is very likely on a car having done this mileage.

Read again the four reasons why a diesel engine won't run. As I said, your problem will be one of them. Make sure you eliminate each one in turn and you'll find your problem.

 

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