Transit power loss

[Dannydan]

On 8/10/2020 at 12:53 PM, Jono1890 said:

Hi I have recently purchased a new shape transit custom (18 plate) only has 12k on the clock I have noticed a loss of power when reaching 60mph or above I work on the roads so motorway driving is a daily occurrence for me the acceleration is none existent when the fault occurs and it’s crawling when on an incline until it kicks in again, I have taken it to an independent garage who could not find any fault codes after a second visit they changed the oil and oil filter but it’s still doing it and again with no fault codes showing does anybody have any help or experience regarding this issue? Any help would be much appreciated thanks in advance 

 

On 8/10/2020 at 12:53 PM, Jono1890 said:

Hi I have recently purchased a new shape transit custom (18 plate) only has 12k on the clock I have noticed a loss of power when reaching 60mph or above I work on the roads so motorway driving is a daily occurrence for me the acceleration is none existent when the fault occurs and it’s crawling when on an incline until it kicks in again, I have taken it to an independent garage who could not find any fault codes after a second visit they changed the oil and oil filter but it’s still doing it and again with no fault codes showing does anybody have any help or experience regarding this issue? Any help would be much appreciated thanks in advance 

 

I have a 68 plate transit custom with 38000 miles. fully serviced . The last 4 weeks it has developed a similar issue . It Happens between 70-80 mph and only if I am maintaining that speed for more than 10-15 mins. Rev range between 2750 - 3250 RPM ... 4th,5th or 6th gear  , loses all power , then around 60 mph it regains power. It  If I come off the motorway and go to 4000 RPM in 1st , 2nd and 3rd there are no issues with it revving and power is all there. I did have the fuel filter changed as i was informed that Ford did not change it at the 30000 service interval, which has made no difference. It also seems to be a lot worse on the drive back home from work, which  is a few degrees warmer.  There are no fault codes showing when they plug it either

[Steve mace]

I have exactly the same problem, took it to a garage and no faults showing so the mechanic suggested changing the fuel filter but this made no difference, could it be possible that the warning light is actually the fault and when it comes on it puts it into a limp mode temporarily? Mind you I can still keep a decent speed but need to give it more acceleration.

[Steve mace]

I have just been on the motorway and avoided 6th gear and only used 5th on a downhill stretch otherwise kept to 4th gear and no problems at all, I know that's not the answer but it may well identify the problem.I will be driving from the south of France to to he Midlands using this method, the engine is sweet and no  over heating, do you think the esg is the problem

[Danwat]

Had a similar issue on and off for a while now, start driving and everything is fine then after 20-30 mins the van loses power and wont accelerate. Took it to a mechanic and they scratched their heads, suggested the intercooler may have a cracked pipe somewhere so replaced them and sent me away. Not sorted. Eventually a mate came across a video on YouTube of an unrelated Ford with the same problem. The fix, remove and clean the MAF sensor. I’ll link the video below. Took less than 10 mins, some WD40 and cotton buds, driven it 60 miles today with no issues. Worth a check. 
 

 

 

[Andomaf]

Nobody seems to be helping on the thread so even though its a tad old, I'll give my two pennies worth for anyone it may help.

I have the same issue in my MK7, Throttle not very responsive, especially when meeting a hill of even miniscule gradient.

I  Have half decent mechanical skills so I'll list what I have done and what it has achieved and what I will be doing asap; 

1) - Removed and cleaned the EGR valve, MAP sensor, MAF sensor = Slight difference

2) - Did an oil change and replaced ALL injector seals = No difference apart from being able to reset the dash alert and no leaking oil on rocker cover. 

3) - Fitted new diesel fuel rail pressure relief valve = Slightly better throttle response

4) - New Fuel filter - Difference unnoticeable

Next step - Fitting new injector and fuel pump in the morning (forscan shows dodgy solenoid) If you are computer literate, the bbfly BF32302 diagnostic scanner with MS-CAN/HS-CAN is a little over 20 quid and the forscan software is free, or with the engine running you can use a screwdriver on the metal part of each injector and use it like a doctors stethoscope, they all should make a clicking sound. Removing inlet manifold to clean as if you don't know, the EGR system kindly puts exhaust gasses back in through the intake valves which covers EVERYTHING in black sludge.

If these fail, I will be sacrificing my van to the gods.

[Andomaf]

Ok, so new injector went in and re-coded on Forscan = Obviously not mis-firing anymore but still same power issues

Almost replaced fuel pump but realised I would've had to pay for the forscan subscription so just changed suction control valve which is located on the face of the fuel pump and voila! so much more power and no trouble on hills. Almost there but it is still hunting  at idle so will plug it in again tomorrow, possibly bad injector harness.

So If your motor has the above symptoms, first try a new suction control valve! 

[Mozza2021]

Hiya All

Been reading these posts with interest, as just purchased a 2016 Transit custom from a Ford garage which had done little miles (33k) and sat around for quite some time during 2020. On collection and the drive home we had the same issues as you are all describing, loss of power even when dropping down to lower gears, vehicle seeming to be in limp mode and also once coming up hill (we are in North Wales - there are lots of them!) the engine started to say overheating and a message on the dash came up to say stop, but then went away once we had stopped and off we went again to get home!

Well it went straight back to Ford (as under a warranty) and we thought having read your posts and many others that it a fuel issue like blocked filters etc, but turns out it was a faulty thermostat that was making the engine think it was overheating, hence going into limp mode and why when we pushed it that once to get home we got the warning on the dash come up. No indication of overheating other than that once. Thinking about it retrospectively the cooling fan was on when we got home that first time and god was it loud!

But since it's been 'fixed' we've brought it home and it drove fine, no problems, no loss of power and when we got home the second time the cooling fan wasn't on. It's early days as this was very recent, but so far so good... just decided to post this in case in any of your vehicles it could be the thermostat like ours.

hope this helps someone.

[Vince1975]

Had same problem last few days, just driven from Southampton to Chatham, and the weather has dropped from 33 degrees to 21 degrees and we have thunderstorms. Van has stopped playing up , could this be a hot or lack of oxygen thing ?

[Dam10]

On 12/12/2018 at 7:51 PM, Mickym said:

Hi I’ve recently bought a 2014 2.2 transit, there seems to be a sudden loss of power as though I’m not getting any boost from the turbo or not enough diesel, it always occurs when I’m about to put my foot down to go past another vehicle or go up a hill basin when I need a bit more power, there are no faults showing and I’ve slready had the egr blanked and the dpf by passed as I was told these may be the problem but they have made no difference, any help would be greatly appreciated 

Hi, I’ve had the same problem with my 59 reg T350, I found this video on YouTube it might be some help, could be the fuel temperature sensor that’s causing loss of power and 2000rpm.

 

[Lee Kelly]

58 Reg Ford Transit Connect Fixed

For the past few years I’ve had to endure my van always playing up, mainly in the winter, with my anxiety going through the roof when I hit any incline! It struggled going above 1500 rpm and getting above 20mph on a hill. I was in Kent one day with about 20 cars behind me in Biggin Hill. I didn’t think I would make it home!

How was it fixed? Replaced fuel filter! There’s still some work to do I believe on the sensors but overall the fuel filter change worked a treat. No more struggling up hills!

To get there took ages though! I took it to garage after garage and they couldn't spot what the issues were. One mechanic said the job will probably be too big and I might as well scrap it! I was mortified this van was my baby and sole reason I was able to PT outside. It passed MOT and was regularly serviced year after year. After a while I decided to use a mobile mechanic as it was cheaper and more convenient. Admittedly he struggled too at first and replaced various parts to do with the air intake (which needed doing anyway). Finally, after reading some bits on this forum we changed the fuel filter.

I was over the moon to say the least. I was almost going to scrap the thing if there were to be no solution this winter. Now, it’s good as new! 

A few tips for other experiencing similar:

1. Make sure you prescribe the following:

Parts;
Fuel pump 
Fuel filter
Fuel temperature sensor
Thermostat 
Suction control valve
Glow plugs.

2. Make sure when getting serviced you are specific on what you want checked otherwise some garages won’t check. 

3. Be patient and willing to try small changes made over time. Some of these vans have done their far bit of mileage so it may well be an accumulation of small things leading to a bigger issue. 
 

I am fairly convinced my van still requires works to be optimal but as long as it gets me from a to b without much hassle I am happy. 
 

Good luck guys!

 

 

Edited November 28, 2021 by Lee Kelly
More detail

[Steve Waight]

I recently had the same problem, it was traced to the throttle position sensor on the pedal failing intermittently. i bought a £30 replacement from eBay and it cured it instantly

[Jasoo]

So I’ve read through all of these problems … has anybody actually solved the problem ?

[Berni4]

Same problem here. 2014 Transit custom....its so annoying any luck with someone ?

[Ian Cardy]

Been researching this issue as my Mk7 2.4 tdci has just started doing this randomly. A faulty scv seems to be the most likely cause and a good place to start. Also a good idea to replace the prv at the same time. 

[BenYule]

I have a 2004 Ford connect been having problems with losing power when sitting at a certain speed and put the foot down there’s no response then it seems to kick any ideas on what it could be ?