injectors

[so1o]

Hi,

I think I may have an injector problem but it could be something else.

I have a 2.5di recovery truck/van. The problem I have is the transit idles fine, starts fine but as soon as you put your foot down it starts to hesitate. It hesitates like theres not enough fuel going through. If you gently plant the accelerator it is ok for all of 10 seconds then starts hesitating again. As soon as a slight incline and i mean a very very small incline comes, its drops down to about 15mph even if your in second gear, it just keeps dropping until your on a flat road again. This problem occurs whether I have a car loaded on the trailer or not.

I took one injector out and it has these numbers on them........

974F-DA
32144L97

Exactly like that, printed just above the injector body. What injector is this and does anyone have a rough cost of these from Ford or someone local to Bedford.

Could it be a different problem?

Im in desperate need of your help because i have had to turn down two big money jobs because of this problem.


Any help appreciated.

Solo

[gazza]

in all the yaers i have run diesels i have never ever replaced an injector. this includes a lister sr3 from the mid 60's fitted to an ex hire narrow boat that must have run for good knows how many hours. have you checked the normal stuff that causes probs with diesels? holes in fuel pipes, blocked fuel / air filter? water / contamination or even petrol in the fuel (more common than you would think) incorrectly fitted fuel filter (common on split filter / housing assemblys, poor seating of injectors? leaking unions? best to start at the begining (check quality and type of fuel) before commiting to injectors or new pump. i have had a fiesta 1.6 d hat had done nearly 300000 miles the body was totaly shagged but engine had never ever had new injectors

[jay]

used to have a problem like that when i had a tranny as a courier,I would have a misfire but not a regular misfire if u just reved it ,it would be fine turned out to be the filter in the tank on the end of the sender unit,when I did my diesal conversion I didnt put the filter on the end when I replaced the sender unit.if no joy there i would check the main fuel filter.

[so1o]

Thanks guys, will give everything a once over before i replace the injectors.

Solo

[so1o]

Im back again lol.

I checked the air filter which was very dirty, this was replaced and the air filter housing cleaned from inside. The fuel filter was replaced. The injectors were all taken out and given to an injector specialist who tested them and said they were fine.

The fuel pipes running between the injectors were replaced. The fuel lines throughout were checked and all seemed fine.

The bloke who checked the injectors said he was 99.9% sure that it is something to do with the fuel pump. Basically he said he will take it out/off and do a mod. What the mod consists of i dont know but something to do with taking it off and doing something to it internally. Anyone know what he is talking about?

It seems to me its something to do with diesel blockage. The diesel isnt getting through when its under load, hence it struggles and fails to keep any speed on th slightest of hill/incline.

What else could i check?

Solo

[FredTransit]

Don't know about a mod, but there is a repair I can think of. There is a tiny seal on the pump's drive shaft that lets in air. Maybe that's what he is going to replace.

[so1o]

Thank you everyone for your help. I rechecked everything and found a seal broken at the bottom of the fuel filter/water sensor housing. I replaced the cap with the one you get thats is already on the fuel filter, little round black one. Will this matter me not using the water sensor but the other little one?

Hope this makes sense.....

Thanks again.

[MrMPuk]

Yeah I wouldn't worry about it, my water sensor isn't connected either.

[so1o]

Cheers mate.

This has made a difference but its still not right. Is there a way to find out where the air is getting in from? Or is it step by step elimination???

[FredTransit]

Did you get the pump done? You didn't say if yours is factory or a conversion.

[baconsdozen]

I had the injectors done on my Merc 307D only because it was getting up to 250,00 miles.Bloke reckoned they were the worst he'd ever seen,charged a fortune......Made not a tad of difference.

[gazza]

my point exactly, if you do get a bit smokey there are plenty of stunts to pull for mot, wind pump pressure down a bit, wind in throttle stop a bit, route breather into a bottle instead of inlet manifold / air cleaner, plenty of injector clean good hard spanking down the road, all this cost very little, dread to think what exchange injectors cost

[trxdavid]

Don't know if this will help or not, but I have a '95 2.5d with a Bosch pump and it was never a rocketship but about 6 months ago it got steadily worse over a period of about 2 weeks, so bad that lots of hills were second or even first gear. A local deisel specialist pointed me in the right direction-it turns out there are a couple of springs in the pump which bear onto a face cam and control the main plunger. The springs control the position of the plunger in relation to the main body and make sure that the correct amount of fuel is delivered to the right place at the right time. If one (or in my case both!) springs break the efficiency of the pump, and the engine, is drastically affected. That was the explanation I was given,
The springs were replaced and hills that used to make it struggle in second gear can now be accelerated up in third. "Transformation" would be a real understatement!
Good luck, hope this helps.

[FredTransit]

welcome, David, I am sure this will be of help!